Search for Epistles of Paul

Adult Health Study Guide Module 4 Cardiovascular & Vascular Module Hypertension • Heart Failure • Vascular Disorders NUR 3215 Built from instructor lecture slides & transcripts (Harding et al., 2023 used only to clarify mechanism) 1. Hypertension (HTN) Hypertension is the most important modifiable risk factor for cardiovascular disease. It is often called the “silent killer” because most patients are asymptomatic — about 108 million U.S. adults are affected, ~71% are uncontrolled, and ~49% are untreated. Pathophysiology — the mechanism Everything in HTN comes back to one equation: BP = CO × SVR. To lower BP, you must lower cardiac output (CO), systemic vascular resistance (SVR), or both. Every antihypertensive drug works by turning down one side of this equation. Cardiac output (the volume/pump side): CO = SV × HR. If a patient is fluid overloaded, CO rises and BP rises. Systemic vascular resistance (the container side): the force opposing blood flow. The principal factor is the radius of the small arteries and arterioles — controlled by smooth muscle in the tunica media. Vasoconstriction raises SVR and BP. Short-term regulation (sympathetic nervous system — acts in seconds): baroreceptors in the carotid sinus and aortic arch sense a BP drop and signal the brainstem. Beta-1 receptors (heart): ↑ heart rate and contractility → ↑ CO. Alpha-1 receptors (vascular smooth muscle): vasoconstriction → ↑ SVR. Beta-2 receptors (lungs, coronary arteries): vasodilation and bronchodilation. Non-selective beta-blockers (e.g., propranolol) block beta-1 AND beta-2, so they can cause bronchoconstriction — avoid in asthma. Key pathology: in chronic HTN the baroreceptors “reset” to a higher normal, so the body actually fights efforts to lower the pressure. Long-term regulation (RAAS — Renin-Angiotensin-Aldosterone System): a domino chain. Low renal blood flow → kidney releases renin → angiotensinogen converts to angiotensin I → ACE (the catalyst) converts it to angiotensin II. Angiotensin II is a potent vasoconstrictor → ↑ SVR. Angiotensin II also triggers aldosterone → kidneys retain sodium and water → ↑ blood volume → ↑ CO. Primary (essential) HTN = 95% of patients: multifactorial (genetics + lifestyle). Continuous BP elevation causes medial hyperplasia (thickening of the arteriole wall) → the lumen narrows → perfusion drops → organ damage. Chronic and incurable, but controllable. Secondary HTN = 5%: caused by a specific underlying condition or drug — renal/kidney disease (most common), renal artery stenosis, primary aldosteronism, pheochromocytoma, Cushing syndrome, or medications (estrogen-containing oral contraceptives, glucocorticoids). Treat the underlying cause and the HTN often resolves. Red flags: sudden severe BP elevation or an abdominal bruit over the renal arteries. Risk factors Modifiable: diet high in saturated fat and salt, physical inactivity, stress, excessive alcohol, smoking, obesity, coexisting diabetes/kidney disease. Non-modifiable: aging, family history, African American race. Clinical presentation & symptoms Usually asymptomatic. “Absence of symptoms ≠ absence of disease.” Silent vascular damage occurs while the patient feels fine. Late signs (severe — organs already struggling): fatigue, dizziness, angina, dyspnea. These are NOT early warnings. Diagnostic tests & findings Accurate technique: correct cuff size (too small = falsely high reading) and arm supported at heart level. Ambulatory BP monitoring (24 hr): rules out white-coat HTN and assesses diurnal variability. Normal “dippers” drop ~10% at night; non-dippers / reverse dippers are at much higher cardiovascular risk. Home readings predict CVD risk better than office readings — take morning (before meds) and evening. Treatment & nursing interventions First line — lifestyle changes Physical activity: ≥150 min moderate exercise/week → SBP ↓ 4–9 mmHg. Weight loss: ~1 mmHg BP drop per kilogram lost; also slows atherosclerosis. Sodium reduction: <2300 mg/day for healthy adults, <1500 mg for greater reduction. Teach the “Salty Six”: bread products, deli/cured meats, pizza, soup, sandwiches, poultry. Diet additions: ↑ potassium and calcium from food (not supplements — calcium supplements are NOT recommended for BP). Limit alcohol/sugary drinks; quit smoking. Pharmacology — mapped to BP = CO × SVR Drug class Action on the equation Examples / nursing notes Thiazide diuretics ↓ CO (↓ volume) — first choice for HTN alone Hydrochlorothiazide; take early in day Loop / K-sparing diuretics ↓ CO (↓ volume) Loop: furosemide, bumetanide K-sparing: spironolactone, eplerenone ACE inhibitors ↓ SVR — block ACE (Ang I→II) Lisinopril, enalapril (“-pril”) SE: dry cough, angioedema; first-line for RAAS ARBs ↓ SVR — block Ang II receptors Losartan, valsartan (“-sartan”); used if ACE cough Calcium channel blockers ↓ SVR — relax vessel smooth muscle Amlodipine Beta blockers ↓ CO — block beta-1 Metoprolol, atenolol Alpha agonists / blockers ↓ SVR — block alpha-1/SNS Clonidine Aldosterone antagonists ↓ volume + block RAAS Spironolactone, eplerenone (also K-sparing) Hyperkalemia watch: ACE inhibitors, ARBs, and aldosterone antagonists all reduce aldosterone → monitor potassium. Combination therapy (e.g., a diuretic + a CCB) lets each drug be used at a lower dose. Managing side effects & the “adherence gap” The disease is silent but the cure can make patients feel worse, so they stop their meds. Nursing focus is on managing side effects and adherence. Orthostatic hypotension (a fall risk): rise slowly, dangle legs before standing; sit down if dizzy. Xerostomia (dry mouth): sugarless gum or hard candy. Nocturia: take diuretics early in the day. Sexual dysfunction: encourage reporting to the HCP for a medication change rather than stopping abruptly. Hypertensive crisis (sneak peek — >180/120) Urgency: very high BP, NO target organ damage → oral meds (captopril, labetalol), lower gradually over hours/days. Emergency: high BP PLUS acute target organ damage (chest pain, stroke signs, acute renal failure) → ICU + IV meds. Safety rule: decrease MAP by no more than 25% in the first hour — dropping pressure too fast can cause an ischemic stroke. Older adults (>65) Physiology: loss of arterial elasticity (arteriosclerosis), myocardial stiffness, blunted baroreceptor reflexes → high orthostatic hypotension risk. Goals: community-dwelling target SBP <130; institutionalized/comorbid patients use clinical judgment (strict control raises fall risk). “Start low, go slow.” Complications — target organ damage Cerebrovascular disease: stroke / TIA (4× risk increase). Retinopathy: retinal hemorrhage, vision loss. Left ventricular hypertrophy: → coronary artery disease and heart failure. Nephrosclerosis: → chronic kidney disease / renal failure. ⭐ Clinical Pearl / NCLEX Orthostatic hypotension is defined as a drop of ≥20 mmHg systolic OR ≥10 mmHg diastolic on standing — a classic exam value and a major fall risk in older adults on antihypertensives. Red flag: In a hypertensive emergency, do NOT normalize BP rapidly — reduce MAP by ≤25% in the first hour to avoid cerebral ischemia. 2. Heart Failure (HF) Heart failure is the inability of the heart to provide sufficient cardiac output to meet the body’s metabolic needs. The heart hasn’t stopped — its pumping capacity is reduced, so perfusion is inadequate, especially during exertion. The brain, kidneys, and muscles suffer most. Pathophysiology — the mechanism Start with CO = SV × HR (normal 4–8 L/min at rest). Stroke volume depends on three factors: Preload (the stretch): volume in the ventricle at end of diastole. Frank-Starling law — more stretch (within reason) = stronger contraction. Afterload (the resistance): what the ventricle pumps against. ↑ SVR (high BP) wears out the left side; pulmonary hypertension wears out the right side. High afterload ↑ O₂ demand. Contractility (the squeeze): muscle strength, ↑ by the sympathetic nervous system (epinephrine) and positive inotropes. The vicious cycle of HF: low CO → body senses crisis → SNS + RAAS activate → ↑ HR and massive vasoconstriction to keep BP up → this ↑ afterload → the exhausted heart works harder and O₂ demand climbs → chronic strain causes Ventricular remodeling: the ventricles dilate (stretch out) or undergo hypertrophy (thicken) → progressive failure. The body’s “emergency brake” — BNP: B-type natriuretic peptide is released by the ventricles in response to excessive stretch. It promotes diuresis and vasodilation to offload the heart, and is used clinically as a diagnostic marker of fluid overload. Types of heart failure Left vs. right (a backward-failure problem) Left-sided HF (“Left = Lungs”) Right-sided HF (“Right = Rest of body”) Mechanism LV fails → blood backs up into the left atrium and pulmonary veins → fluid into the alveoli RV fails → blood backs up into the venous system. Most common cause = left-sided HF (cor pulmonale) Key signs Dyspnea, orthopnea, PND Crackles/rales; pink frothy sputum S3/S4; pale/mottled skin, fatigue Restlessness = early hypoxia sign Jugular venous distention (JVD) Hepatomegaly → RUQ pain, nausea, anorexia Ascites; dependent peripheral edema Weight gain (most reliable fluid sign); S3/S4 Systolic vs. diastolic (by ejection fraction) HFrEF — Systolic (“pumping problem”) HFpEF — Diastolic (“filling problem”) Mechanism Ventricle is thin-walled and weakened — loses the squeeze needed to eject blood Ventricle is thick and stiff — can’t relax and fill during diastole Ejection fraction LVEF < 40% LVEF preserved (55–65%): normal % of a low volume Ejection fraction (EF) = ejected volume ÷ end-diastolic volume × 100 (e.g., 70 mL ÷ 120 mL ≈ 58%). For this class remember: normal 50–70%, borderline 41–49%, and <40% = HFrEF. Treat the patient’s symptoms, not just the number. Risk factors & etiology Primary: hypertension (most common cause — treating HTN ↓ HF incidence by 50%), coronary artery disease/MI (damages muscle), structural/valvular disease (aortic or pulmonic stenosis). Contributing: diabetes, metabolic syndrome, advanced age, tobacco, obesity/inactivity, vascular disease. Other causes: congenital defects (septal defects), cardiomyopathies, viral myocarditis, dysrhythmias, toxins (alcohol, illicit drugs, chemotherapy). Precipitating (acute decompensation): infection, anemia, thyroid disorders, and — very commonly — medication nonadherence. Diagnostic tests & findings Echocardiogram = gold standard: measures LVEF, chamber size, wall motion, and valve function. Transesophageal echo (TEE): invasive probe swallowed under sedation; keep NPO until the gag reflex returns (~1–2 hr). BNP: the diagnostic tiebreaker — differentiates cardiac vs. respiratory dyspnea. High = cardiac/fluid overload. Chemistries: K⁺, Na⁺, and BUN/creatinine for cardiorenal monitoring. 12-lead ECG: detects dysrhythmias. Chest X-ray: cardiomegaly and pulmonary congestion (white cloudiness). Cardiac catheterization/angiogram: assesses CAD. Classification: NYHA (functional, Classes I–IV, numbers) vs. AHA/ACC (structural + risk, Stages A–D, letters). Higher numbers/letters = worse. Treatment & nursing interventions Mortality benefit — slow remodeling in HFrEF ACE inhibitors / ARBs: block RAAS → ↓ afterload and ↓ remodeling. Watch for dry cough/angioedema (ACE) and hyperkalemia (both). Examples: lisinopril, valsartan. Beta blockers (metoprolol succinate, carvedilol): block chronic SNS overstimulation → ↓ HR and O₂ demand. Start low, go slow; monitor for bradycardia and hypotension. ARNI — Entresto (sacubitril/valsartan): an ARB combined with a neprilysin inhibitor; boosts beneficial BNP effects and is more effective than ACE inhibitors alone at reducing hospitalizations. Aldosterone antagonists (spironolactone): block aldosterone’s fibrotic effects on the heart; K-sparing → monitor renal function and potassium closely. Mechanism note (textbook): neprilysin is the enzyme that breaks down natriuretic peptides (ANP/BNP). Inhibiting it raises BNP levels, enhancing diuresis, natriuresis, and vasodilation while inhibiting aldosterone and renin — which is why an ARNI amplifies the heart’s own “emergency brake.” Symptom management — fluid control (no mortality benefit) Diuretics: loop (furosemide/Lasix) acts at the loop of Henle, removing large fluid volumes; thiazides are milder, often combined. Monitor for hypokalemia; risk of ototoxicity (hearing changes) with rapid IV Lasix. Positive inotropes — digoxin: ↑ contractility, ↓ HR. Narrow therapeutic range — early toxicity signs are nausea and visual changes (yellow halos). Vasodilators — BiDil (hydralazine + isosorbide dinitrate): improves outcomes specifically in Black/African American patients with HFrEF. Nutrition, lifestyle & safety Sodium restriction ≤2 g/day; avoid the “Salty Six.” Fluid restriction: reserved for Stage D or persistent retention (not routine for mild HF); hospitalized severe cases often 1000–1500 mL. Activity: cardiac rehab reduces mortality; teach energy conservation (balance rest/activity); avoid extremes of heat and cold. Avoid NSAIDs (ibuprofen/Advil/Motrin, naproxen/Aleve) — cause sodium/water retention; Tylenol is generally preferred. Avoid decongestants (stimulants ↑ workload). Infection prevention: annual flu and pneumonia vaccines are essential — infection ↑ metabolic O₂ demand and triggers decompensation. Home management (patient teaching) Daily weights — the “3 S’s”: same time (morning), same scale, same clothing. Call the provider for weight gain >3 lb in 2 days OR 3–5 lb in a week (fluid, not fat). Pulse check: radial pulse for 1 full minute; call if <50 or >100 (or per provider limits). Report worsening symptoms: waking breathless (PND) or needing more pillows to sleep → call the provider. Complications & advanced therapies Complications: pleural effusion, dysrhythmias (atrial fibrillation → high thrombus risk), cardiorenal syndrome (kidney failure from low perfusion). Advanced (Stage D): ICD for sudden cardiac death prevention if EF <35%; VAD (bridge-to-transplant or destination therapy); heart transplant (gold standard for end-stage); palliative care when NYHA Class IV symptoms persist. ⭐ Clinical Pearl / NCLEX Sudden weight gain >3 lb in 2 days or 3–5 lb in a week is the earliest, most reliable sign of fluid retention and worsening HF — teach patients to call the provider even when they still feel fine. Two high-yield red flags: (1) digoxin toxicity = nausea + yellow halos around lights; (2) new restlessness/confusion in left-sided HF = early hypoxia — check pulse ox and lung sounds immediately. 3. Vascular Disorders Foundations — the two roads Arterial system (supply road): high-pressure, carries oxygenated blood away from the heart; thick muscular walls. The problem in arterial disease is a delivery failure. Venous system (return road): low-pressure/high-volume, carries deoxygenated blood toward the heart; relies on one-way (semilunar) valves and the skeletal muscle (calf) pump to fight gravity. The endothelium: innermost lining that maintains hemostasis. Disruption (by HTN, smoking, high cholesterol) triggers the coagulation cascade → fibrin clots and blockages. Diagnostic visualization & screening Doppler ultrasound: maps blood flow when pulses are hard to palpate. Ankle-Brachial Index (ABI): ankle systolic BP ÷ higher brachial systolic BP. Normal 1.0–1.3; mild PAD 0.71–0.90; severe PAD / critical ischemia ≤0.40. Segmental BP (thigh, below knee, ankle): a drop >30 mmHg between segments localizes the blockage. Angiography = gold standard for exact location/severity: contrast dye + X-ray. Radial approach (more comfortable, less bleeding) vs. femoral approach (larger-vessel access, strict flat bedrest afterward). IVUS gives a 360° cross-section of the arterial wall. Angiography patient safety Pre-procedure: verify contrast dye allergy (shellfish/iodine link is a myth — ask about contrast); baseline vitals + neurovascular check (mark distal pulses); labs (cardiac biomarkers, creatinine — kidneys must clear the dye); NPO 6 hr; give ordered sedatives; teach the flushing/fluttering sensation. Post-procedure: compare to baseline; strict bedrest if femoral; check the insertion site for hematoma/bleeding every 15 min for the first hour; recheck distal pulses (a colder extremity suggests occlusion); monitor ECG for dysrhythmias/ST changes; push fluids to flush the dye. Peripheral Artery Disease (PAD) — “the blockade” Pathophysiology: progressive narrowing from thickening of the intima/media layers; a marker of advanced systemic atherosclerosis (the heart and brain vessels are likely affected too). Risk profile: tobacco use (the single most important risk factor — it accelerates PAD), diabetes (earlier onset; high sugar roughens arterial walls), hypertension, high cholesterol, age >60. Clinical signs Intermittent claudication (hallmark): ischemic muscle pain triggered by exercise (lactic acid buildup — “angina of the legs”), resolving within ~10 min of rest. Skin/perfusion changes: thin, shiny, taut skin; hair loss; paresthesia in the toes; diminished or absent pedal and popliteal pulses. Arterial ulcers: “punched out,” on bony prominences/tips of toes, minimal drainage. Positional test: elevation pallor (pale when raised) → dependent rubor (dusky red when hanging down). Critical Limb Ischemia (CLI) — the danger zone Definition: chronic ischemic rest pain >2 weeks, nonhealing ulcers, or gangrene. Rest pain: worse at night when lying flat (limbs level with the heart lose gravity assistance). Patients sleep in chairs or dangle their legs. Sequelae: tissue necrosis, delayed healing, high amputation risk. Medical management — restoring flow Risk modification: tobacco cessation is essential (nicotine causes vasoconstriction); DASH or Mediterranean diet; exercise 30–45 min, 3×/week — push through claudication to moderate severity, rest, then resume → builds collateral circulation. Antiplatelets: aspirin or clopidogrel (Plavix). Warning: omeprazole (Prilosec) reduces clopidogrel’s effect → ↑ MI risk. Anticoagulants like warfarin are NOT as effective for PAD. Statins (e.g., simvastatin) lower cholesterol and stabilize plaque. Claudication-specific drugs: cilostazol (vasodilator — contraindicated in heart failure); pentoxifylline (↑ RBC flexibility). Surgical interventions Radiologic: PTA & stenting (balloon compresses plaque, stent holds it open), atherectomy (plaque removal), cryoplasty (cold therapy to limit restenosis). Bypass: femoral-popliteal (fem-pop) using an autogenous vein or synthetic graft to detour around the lesion. Endarterectomy / amputation: manual plaque removal; amputation for uncontrolled infection or extensive necrosis. Post-op vigilance: assess the operative extremity q15min, then hourly — color, temperature, cap refill, pulses, sensation. Loss of a palpable pulse or a changed Doppler sound = emergency, notify the surgeon. Avoid knee-flexed positions (kinks the graft); turn frequently keeping the limb straight; monitor the 6 Ps (pain, pressure, paresthesia, pallor, paralysis, pulselessness) and watch for bleeding, hematoma, thrombosis, and compartment syndrome. Arterial outliers — spasm & inflammation Buerger’s disease (thromboangiitis obliterans): inflammatory disorder of small arteries/veins; targets men <45 who are heavy tobacco/marijuana users. Treatment is complete cessation — nicotine replacement is contraindicated because nicotine itself drives the inflammation. Raynaud’s phenomenon: episodic vasospasm triggered by cold, stress, or caffeine. Classic color change: White (ischemia) → Blue (cyanosis) → Red (hyperemia). Treat with calcium channel blockers (nifedipine) and warmth. Peripheral / Chronic Venous Insufficiency (PVI / CVI) — “the backflow” Varicose veins (PVI): incompetent valves → dilated, tortuous superficial veins as blood pools backward. Heavy, achy legs, worse after standing, relieved by walking/elevation. Treatment: sclerotherapy (vein ablation); post-op compression stockings, avoid long travel for 1 week (DVT risk). Teach: avoid prolonged sitting or standing. Chronic venous insufficiency (CVI): long-term valve incompetence → serous fluid and RBCs leak into tissue; RBC breakdown releases hemosiderin. Look for leathery, brawny (brownish) skin discoloration, persistent edema, and venous stasis ulcers above the medial malleolus that are irregularly shaped and weepy. Pain is worse in a dependent position. Management: compression therapy is the cornerstone (stockings, Velcro wraps, Unna boot). Critical safety check — assess arterial status first; do NOT apply compression if ABI ≤0.40. Moist wound care (hydrocolloid/foam); nutrition high in protein, vitamins A & C, and zinc; antibiotics only with clinical infection (purulence/odor); elevate the limbs. Arterial vs. Venous — the master comparison Feature Arterial (PAD) Venous (PVI/CVI) Root cause Atherosclerosis → blockage of supply Incompetent valves + high pressure → backflow Pain Sharp intermittent claudication with exercise; relieved by dangling legs Dull, heavy ache; relieved by elevating legs above heart Skin/temp Cool, thin, shiny; elevation pallor / dependent rubor Warm, thick; bronze-brown pigmentation; varicose veins Pulses Decreased or absent Present (may be hard to palpate if edema) Edema Generally absent Common (lower leg) Ulcers Tips of toes / lateral malleolus; rounded, “punched out”; minimal drainage Near medial malleolus; irregular; moderate–large drainage Primary goals Antiplatelets + supervised walking Compression + wound care ⭐ Clinical Pearl / NCLEX NEVER apply compression therapy if the ABI is ≤0.40 (severe PAD) — it can completely shut off already-limited arterial supply. Always assess arterial status before treating a venous ulcer. Ulcer location is the giveaway: arterial ulcers sit on the toes/lateral malleolus (punched out, dry); venous ulcers sit above the medial malleolus (irregular, weepy). And in Buerger’s disease, nicotine replacement is contraindicated.

U.S. History Final Exam Study Guide 1. Columbus Christopher Columbus was an Italian explorer who sailed for Spain in 1492. He was searching for a westward route to Asia but instead reached the Caribbean. His voyage began long-term European exploration and colonization of the Americas. Columbus’s arrival also led to major consequences for Native Americans, including disease, conquest, forced labor, and cultural destruction. 2. Columbian Exchange The Columbian Exchange was the transfer of plants, animals, people, diseases, and ideas between Europe, Africa, and the Americas after 1492. Europeans brought horses, cattle, wheat, and diseases like smallpox. The Americas sent corn, potatoes, tomatoes, tobacco, and cacao to Europe. It changed diets, economies, populations, and environments around the world. 3. Jackson and the Bank Andrew Jackson opposed the Second Bank of the United States because he believed it gave too much power to wealthy elites. He thought the bank was unfair to common people and harmful to democracy. Jackson vetoed the bill to renew the bank’s charter and removed federal money from it. This became known as the “Bank War.” 4. Jamestown Jamestown was founded in 1607 in Virginia and was the first permanent English settlement in North America. The settlers struggled with disease, starvation, poor leadership, and conflict with Native Americans. The colony survived partly because of tobacco farming. Jamestown became important because it showed England could establish colonies in America. 5. John Smith / John Rolfe John Smith helped Jamestown survive by enforcing discipline with the rule, “He who does not work shall not eat.” He also built relationships with local Native Americans. John Rolfe introduced a successful type of tobacco, which became Jamestown’s main cash crop. Rolfe also married Pocahontas, helping create a short period of peace. 6. Middle Passage The Middle Passage was the forced journey of enslaved Africans across the Atlantic Ocean to the Americas. Conditions on ships were brutal, overcrowded, and deadly. Many Africans died from disease, starvation, abuse, or suicide. It was part of the triangular trade system and a major part of the growth of slavery in the Americas. 7. Bacon’s Rebellion Bacon’s Rebellion happened in Virginia in 1676. Nathaniel Bacon led poor farmers, indentured servants, and others against Governor Berkeley. They were angry about lack of protection from Native American attacks and unfair treatment by wealthy landowners. After the rebellion, plantation owners relied more on enslaved Africans instead of indentured servants. 8. Mayflower Compact The Mayflower Compact was signed in 1620 by the Pilgrims before they settled at Plymouth. It created a basic form of self-government. The signers agreed to make and follow laws for the good of the colony. It is important because it was an early example of democracy and majority rule in America. 9. Pilgrims & Puritans Pilgrims were Separatists who wanted to completely break away from the Church of England. They settled Plymouth in 1620. Puritans wanted to reform or “purify” the Church of England and settled mostly in Massachusetts Bay. Both groups came for religious reasons, but the Puritans created a larger and stricter society. 10. Age of Jackson Presidents The Age of Jackson refers mainly to Andrew Jackson’s presidency and the expansion of democracy for white men. Voting rights expanded as property requirements were removed for many white males. Jackson presented himself as a champion of the common man. However, this era also included Indian removal, the Bank War, and growing sectional conflict. 11. Stamp Act The Stamp Act of 1765 was a British tax on paper goods such as newspapers, legal documents, and playing cards. Colonists were angry because they had no representatives in Parliament. This led to the slogan “No taxation without representation.” Colonial protests helped force Britain to repeal the law. 12. American System The American System was an economic plan supported by Henry Clay. It included protective tariffs, a national bank, and internal improvements such as roads and canals. Its goal was to strengthen the U.S. economy and connect different regions. It showed the federal government taking a stronger role in economic growth. 13. Boston Massacre The Boston Massacre happened in 1770 when British soldiers fired into a crowd of colonists, killing five people. Colonists used the event as propaganda against Britain. Paul Revere’s engraving made the British look cruel and violent. It increased anger and tension between Britain and the colonies. 14. Boston Tea Party The Boston Tea Party happened in 1773. Colonists protested the Tea Act by dumping British tea into Boston Harbor. They were angry because Britain gave the British East India Company special advantages. Britain responded with the Intolerable Acts, which punished Massachusetts. 15. Declaration of Independence The Declaration of Independence was adopted on July 4, 1776. It announced that the colonies were separating from Britain. Thomas Jefferson wrote most of it. The document argued that people have natural rights and that government gets power from the consent of the governed. 16. Unalienable Rights Unalienable rights are rights that cannot be taken away. In the Declaration of Independence, these include “life, liberty, and the pursuit of happiness.” The idea came from Enlightenment thinkers like John Locke. These rights were used to justify independence from Britain. 17. Common Sense / Thomas Paine Common Sense was a pamphlet written by Thomas Paine in 1776. It argued that the colonies should become independent from Britain. Paine used simple language so ordinary people could understand. It helped convince many colonists to support independence. 18. Articles of Confederation The Articles of Confederation were America’s first national government. They created a weak central government because Americans feared tyranny. Congress could not tax, regulate trade well, or enforce laws effectively. Its weaknesses led to the creation of the Constitution. 19. Shays’ Rebellion Shays’ Rebellion was a farmers’ rebellion in Massachusetts in 1786–1787. Farmers were angry about debt, taxes, and losing their farms. The weak national government could not respond effectively. This showed the problems of the Articles of Confederation and encouraged leaders to write the Constitution. 20. Lexington and Concord / “Shot Heard ’Round the World” The Battles of Lexington and Concord happened in April 1775. They were the first battles of the American Revolution. British troops went to seize colonial weapons, but colonial militias resisted. The “shot heard ’round the world” refers to the first shot that began the Revolution. 21. Bunker Hill The Battle of Bunker Hill happened in 1775 near Boston. The British won, but they suffered heavy casualties. The battle proved that colonial forces could fight against the powerful British army. It gave colonists confidence early in the Revolution. 22. Saratoga / Ben Franklin The Battle of Saratoga in 1777 was a major American victory. It is considered the turning point of the Revolutionary War. After Saratoga, France agreed to support the Americans. Benjamin Franklin helped negotiate the French alliance, which provided money, troops, and naval support. 23. Yorktown The Battle of Yorktown happened in 1781. American and French forces trapped British General Cornwallis in Virginia. The French navy blocked British escape by sea. Cornwallis surrendered, effectively ending the Revolutionary War. 24. Alexander Hamilton / Economic Plan Alexander Hamilton was the first Secretary of the Treasury. His economic plan included paying off national debt, creating a national bank, and supporting manufacturing. He wanted a strong federal government and strong economy. His plan helped stabilize the new nation but caused political conflict. 25. Whiskey Rebellion The Whiskey Rebellion happened in 1794 when farmers protested a tax on whiskey. President George Washington sent federal troops to stop the rebellion. This showed that the new Constitution gave the federal government power to enforce laws. It was a contrast to the weakness shown during Shays’ Rebellion. 26. Washington’s Farewell Address Washington’s Farewell Address warned Americans against political parties and permanent foreign alliances. He believed political parties could divide the nation. He also wanted the U.S. to avoid being pulled into European conflicts. His advice influenced American foreign policy for many years. 27. James K. Polk James K. Polk was president from 1845 to 1849. He strongly supported Manifest Destiny and westward expansion. During his presidency, the U.S. gained Oregon territory and fought the Mexican-American War. The U.S. gained a large amount of land, including California and the Southwest. 28. William Henry Harrison William Henry Harrison was the 9th president of the United States. He was known as a military hero from the Battle of Tippecanoe. He gave a very long inaugural speech in cold weather and died about a month later. He had the shortest presidency in U.S. history. 29. Constitution The Constitution is the supreme law of the United States. It replaced the Articles of Confederation and created a stronger federal government. It established three branches: legislative, executive, and judicial. It also created checks and balances to prevent one branch from becoming too powerful. 30. Preamble to the Constitution The Preamble is the introduction to the Constitution. It begins with “We the People.” It explains the goals of the government, such as forming a more perfect union, establishing justice, ensuring peace, providing defense, promoting general welfare, and securing liberty. 31. The Republican Party The Republican Party was founded in the 1850s. It opposed the spread of slavery into western territories. Abraham Lincoln was the first Republican president. The party’s rise showed how slavery was becoming the central political issue before the Civil War. 32. Three-Fifths Compromise The Three-Fifths Compromise was made at the Constitutional Convention. It said that enslaved people would count as three-fifths of a person for representation and taxation. Southern states wanted enslaved people counted for more representation. This compromise increased Southern political power while protecting slavery. 33. Checks and Balances Checks and balances allow each branch of government to limit the power of the others. For example, the president can veto laws, Congress can override vetoes, and the Supreme Court can declare laws unconstitutional. This system prevents any one branch from becoming too powerful. 34. Intolerable Acts The Intolerable Acts were passed by Britain after the Boston Tea Party. They punished Massachusetts by closing Boston Harbor and limiting self-government. Colonists saw these acts as unfair and oppressive. They helped unite the colonies against Britain. 35. Bill of Rights The Bill of Rights is the first ten amendments to the Constitution. It protects individual freedoms such as speech, religion, press, assembly, and the right to bear arms. It was added to satisfy Anti-Federalists who feared a strong central government. 36. Impressment Impressment was the British practice of forcing American sailors into the British navy. It angered Americans and violated U.S. neutrality. Impressment was one of the major causes of the War of 1812. 37. Judicial Review / Marbury v. Madison Judicial review is the power of the Supreme Court to declare laws unconstitutional. It was established in Marbury v. Madison in 1803. Chief Justice John Marshall strengthened the power of the Supreme Court through this decision. 38. James Madison James Madison is known as the “Father of the Constitution” because he helped design the U.S. government. He also helped write the Federalist Papers and the Bill of Rights. As president, he led the country during the War of 1812. 39. War of 1812 / Battle of New Orleans The War of 1812 was fought between the United States and Britain. Causes included impressment, trade restrictions, and British support for Native American resistance. The Battle of New Orleans was fought after the peace treaty had been signed, but news had not arrived. Andrew Jackson became a national hero because of the victory. 40. Monroe Doctrine The Monroe Doctrine was announced in 1823 by President James Monroe. It warned European nations not to colonize or interfere in the Americas. In return, the U.S. would stay out of European affairs. It showed growing American confidence in foreign policy. 41. John Quincy Adams / Corrupt Bargain John Quincy Adams became president after the election of 1824. No candidate won a majority, so the House of Representatives decided the election. Henry Clay supported Adams and later became Secretary of State. Andrew Jackson’s supporters called this a “corrupt bargain.” 42. Manifest Destiny Manifest Destiny was the belief that the United States was destined to expand across North America. It encouraged westward expansion. Supporters saw expansion as progress, but it led to Native American removal, war with Mexico, and conflict over slavery. 43. Trail of Tears / Indian Removal Act The Indian Removal Act of 1830 allowed the federal government to move Native Americans west of the Mississippi River. The Trail of Tears refers especially to the forced removal of the Cherokee. Thousands died from hunger, disease, and exposure. It is one of the darkest examples of U.S. expansion. 44. Worcester v. Georgia Worcester v. Georgia was an 1832 Supreme Court case. The Court ruled that Georgia had no authority over Cherokee land. However, President Andrew Jackson did not enforce the ruling. The Cherokee were still forced to move west. 45. Missouri Compromise The Missouri Compromise was passed in 1820. Missouri entered as a slave state, and Maine entered as a free state. It also banned slavery north of the 36°30′ line in the Louisiana Territory. It temporarily balanced free and slave states but did not solve the slavery issue. 46. Alamo The Alamo was a mission in San Antonio, Texas, where Texan defenders fought Mexican forces in 1836. The defenders were defeated, but the battle became a symbol of resistance. “Remember the Alamo” became a rallying cry during the Texas Revolution. 47. Kansas-Nebraska Act The Kansas-Nebraska Act of 1854 allowed settlers in Kansas and Nebraska to decide whether to allow slavery through popular sovereignty. It repealed the Missouri Compromise line. It led to violence in Kansas, known as “Bleeding Kansas,” and increased sectional conflict. 48. Harriet Tubman Harriet Tubman escaped slavery and became a leader in the Underground Railroad. She helped many enslaved people escape to freedom. During the Civil War, she also served as a nurse, spy, and scout for the Union. She became a symbol of courage and resistance to slavery. 49. Seneca Falls Convention The Seneca Falls Convention was held in 1848 in New York. It was the first major women’s rights convention in the United States. Leaders included Elizabeth Cady Stanton and Lucretia Mott. The convention demanded women’s rights, including the right to vote. 50. John Brown John Brown was a radical abolitionist who believed slavery must be ended by force. In 1859, he led a raid on Harpers Ferry to start a slave rebellion. The raid failed, and Brown was executed. His actions increased tension between North and South before the Civil War. 51. Fugitive Slave Act The Fugitive Slave Act was part of the Compromise of 1850. It required citizens to help capture escaped enslaved people. It also punished people who helped freedom seekers. Many Northerners were angered by the law because it forced them to participate in slavery. 52. Harriet Beecher Stowe / Uncle Tom’s Cabin Harriet Beecher Stowe wrote Uncle Tom’s Cabin in 1852. The novel showed the cruelty of slavery and became very popular in the North. It helped increase abolitionist feelings. Southerners criticized it and argued that it gave a false picture of slavery. 53. Dred Scott v. Sandford Dred Scott v. Sandford was an 1857 Supreme Court case. The Court ruled that enslaved people were not citizens and could not sue in court. It also said Congress could not ban slavery in the territories. This decision angered Northerners and made sectional conflict worse. 54. Lincoln-Douglas Debates The Lincoln-Douglas debates happened in 1858 during the Illinois Senate race. Abraham Lincoln and Stephen Douglas debated slavery’s expansion. Lincoln argued slavery should not spread, while Douglas supported popular sovereignty. Although Lincoln lost the Senate race, the debates made him nationally known. 55. Popular Sovereignty Popular sovereignty means allowing people in a territory to vote on whether to allow slavery. Stephen Douglas supported this idea. It was used in the Kansas-Nebraska Act. Instead of solving the slavery issue, it led to violence and conflict. 56. Fort Sumter Fort Sumter was a federal fort in South Carolina. Confederate forces fired on it in April 1861. This attack began the Civil War. After Fort Sumter, more Southern states joined the Confederacy. 57. Emancipation Proclamation The Emancipation Proclamation was issued by Abraham Lincoln in 1863. It declared enslaved people free in Confederate-controlled areas. It did not immediately free all enslaved people, but it changed the purpose of the war. The Civil War became a fight to preserve the Union and end slavery. 58. Gettysburg Address The Gettysburg Address was a speech given by Abraham Lincoln in 1863 after the Battle of Gettysburg. Lincoln honored the soldiers who died and explained the meaning of the war. He said the nation was fighting for democracy and equality. The speech is one of the most famous in American history. 59. Reconstruction Reconstruction was the period after the Civil War when the U.S. tried to rebuild the South and reunite the nation. It also aimed to define freedom and rights for formerly enslaved people. During Reconstruction, the 13th, 14th, and 15th Amendments were passed. However, racism, Black Codes, and groups like the Ku Klux Klan limited progress. 60. Civil War Amendments The Civil War Amendments are the 13th, 14th, and 15th Amendments. The 13th Amendment abolished slavery. The 14th Amendment gave citizenship and equal protection under the law. The 15th Amendment gave Black men the right to vote. 61. Roger Williams Roger Williams was a Puritan minister who believed in religious freedom and separation of church and state. He was banished from Massachusetts for his beliefs. He founded Rhode Island, which became known for religious tolerance. His ideas influenced later American ideas about freedom of religion.