Shpep

How does habitual glucocorticoid use affect bone?

A. Bone remodeling is tipped toward resorption without bone replacement

B. Inhibited osteoclastogenesis decreases bone remodeling.

C. Osteoblast numbers are greatly decreased, inhibiting osteoid formation.

D. Localized blood flow is increased, inhibiting remodeling

E. Bone mass increases over treatment duration

A. Bone remodeling is tipped toward resorption without bone replacement

Explanation:Chronic glucocorticoid use disrupts normal bone remodeling by increasing bone resorption and decreasing bone formation, leading to net bone loss and a higher risk of osteoporosis.

The most important cause of decreased life expectancy in diabetes is:

A. Kidney failure

B. Frequent infections

C. Retinal detachment

D. Atherosclerosis

E. High blood pressure

D. Atherosclerosis

Explanation :Atherosclerosis is the leading cause of decreased life expectancy in diabetes because it underlies major cardiovascular events like heart attacks and strokes, which are the primary causes of death in diabetic patients.

At any given time, most of the blood volume exists in the following vessels:

A. Elastic arteries

B. Muscular arteries

C. Arterioles

D. Capillaries

E. Veins

E. Veins

Explanation:Veins act as capacitance vessels, holding about 60–70% of the body’s blood volume at any given time due to their large diameter and high compliance.

White blood cells go through the wall of which of the following blood vessels to reach inflamed tissues?

A. Elastic arteries

B. Muscular arteries

C. Arterioles

D. Capillaries

E. Venules

F. Veins

E. Venules

Explanation: White blood cells exit the bloodstream primarily through venules, where the vessel walls are thin and allow diapedesis, the process by which WBCs migrate to inflamed or infected tissues.

This compartment has the smallest portion of the total body fluids:

A. Intracellular

B. Interstitial

C. Intravascular

C. Intravascular

Explanation:The intravascular compartment (fluid within blood vessels) holds the smallest portion of total body fluids, compared to the larger interstitial and intracellular compartments.

This compartment has the largest portion of the total body fluids:

A. Intracellular

B. Interstitial

C. Intravascular

A. Intracellular

Explanation:The intracellular compartment contains the largest portion of total body fluids, making up about two-thirds of the body's water.

Which of the following would likely not be something addressed in physical therapy with a patient?

A. Balance

B. Home exercises

C. Flexibility

D. Medication management

Medication management

This portion of the nephron is where much of the controllable reabsorption of electrolytes takes place

A. The renal corpuscle

B. Proximal convoluted tubules

C. Loop of Henle

D. Distal convoluted tubules and collecting ducts

D. Distal convoluted tubules and collecting ducts

Explanation: The distal convoluted tubules and collecting ducts are where hormone-regulated, controllable reabsorption of electrolytes like sodium and potassium occurs, mainly under the influence of aldosterone and ADH.

Diffusion of molecules from blood to tissues and back occurs across the wall of which of the following blood

vessels?

A. Elastic arteries

B. Muscular arteries

C. Arterioles

D. Capillaries

E. Venules

F. Veins

D. Capillaries

This portion of the nephron is where most of automated electrolyte reabsorption takes place:

A. The renal corpuscle

B. Proximal convoluted tubules

C. Loop of Henle

D. Distal convoluted tubules

E. Collecting ducts

B. Proximal convoluted tubules

Explanation:Most automatic (unregulated) reabsorption of electrolytes and water occurs in the proximal convoluted tubules, where about 65-70% of filtered sodium and water is reabsorbed without hormonal control.

The functional unit of the kidney is called:

A. The calyx

B. The renal corpuscle

C. The nephron

D. The ureter

The nephron

Explanation:The nephron is the functional unit of the kidney responsible for filtering blood and forming urine.

In the kidney, adjustment of the initial filtrate (fluid taken out from the plasma) to return most of the fluid back to the

circulation takes place in:

A. The afferent arteriole

B. The glomerulus

C. The efferent arteriole

D. The peri-tubular capillaries

The peri-tubular capillaries

Explanation:The peri-tubular capillaries surround the nephron and are responsible for reabsorbing most of the filtered fluid and solutes back into the bloodstream.

In the kidney, the initial filtration of the plasma produces about 125 ml of fluid out of the plasma per minute. This

process of passive filtration takes place in:

A. The afferent arteriole

B. The glomerulus

C. The efferent arteriole

D. The peri-tubular capillaries

B. The glomerulus

Explanation:The glomerulus is the site where passive filtration of plasma occurs, producing about 125 ml of filtrate per minute through the filtration barrier into Bowman's capsule.

The main function of the kidney is:

A. Removal of unwanted molecules from the blood plasma

B. Removal of unwanted molecules from the lymphatic fluid

C. Removal of unwanted molecules from absorbed food in the blood coming from the gastrointestinal tract

D. Removal of unwanted molecules from the breathed air

A. Removal of unwanted molecules from the blood plasma

Explanation:The kidney’s primary role is to filter blood plasma to remove waste products and maintain fluid and electrolyte balance.

This structure is part of the visual pathway:

A. Amygdala of the limbic system

B. Basal nuclei

C. Lateral Geniculate Nucleus

D. Midbrain

C. Lateral Geniculate Nucleus

Explanation:The lateral geniculate nucleus (LGN) is a key relay center in the thalamus for visual information traveling from the retina to the visual cortex.

This layer of the eye is called the Uveal Tract:

A. The outer layer (fibrous tunic)

B. The middle layer (vascular tunic)

C. The inner layer (nervous tunic)

The middle layer (vascular tunic)

Explanation:The uveal tract, also known as the vascular tunic, includes the iris, ciliary body, and choroid, and lies between the outer fibrous layer and the inner nervous layer of the eye.

This structure of the retina is specifically essential for the central field of vision:

A. Rods

B. Macula

C. Sclera

D. Ciliary body

Macula

Explanation: The macula is the central area of the retina responsible for sharp, detailed central vision.

The posterior chamber of the eye lies in between these two structures:

A. Cornea and iris

B. Iris and lens

C. Lens and retina

D. Sclera and choroid

Iris and lens

Explanation: The posterior chamber is the narrow space located between the iris and the lens of the eye.

The following structure of the eye must be transparent:

A. Sclera

B. Iris

C. Cornea

D. Eyelid

Cornea

Explanation:The cornea must be transparent to allow light to enter the eye and reach the retina for vision.

The ventral root of spinal cord nerve carries _____ nerve fibers:

A. afferent

B. efferent

C. sensory

D. unmyelinated

B. efferent

Explanation:The ventral root carries efferent motor nerve fibers that transmit signals from the spinal cord to muscles and glands.

Ask ChatGPT

The following are functions of the limbic system:

A. Regulation of the visual and auditory pathways

B. Emotions and memory

C. Consciousness and alertness

D. Regulation of circadian rhythm

Emotions and memory

Explanation. The limbic system is primarily involved in regulating emotions, memory formation, and motivation.

This cell is involved in the blood-brain barrier:

A. Astrocyte

B. Neuron

C. Schwann cell

D. Macrophage

A. Astrocyte

Explanation:

Astrocytes help form and maintain the blood-brain barrier by supporting endothelial cells and regulating the exchange between blood and brain tissue.

This cell is responsible for insulating peripheral nerve fibers with myelin sheath:

A. Astrocyte

B. Neuron

C. Schwann cell

D. Macrophage

C. Schwann cell

Explanation:Schwann cells produce the myelin sheath that insulates peripheral nerve fibers, enabling faster electrical signal transmission.

This cellular structure is the area where two neurons communicate (choose the most specific):

A. Ganglion

B. Node of Ranvier

C. Synapse

D. Nucleus

C. Synapse

Explanation:The synapse is the specialized junction where two neurons communicate by transmitting chemical or electrical signals.

This part of the neuron is specialized to receive the electric signal coming from another neuron:

A. Dendrite

B. Axon

C. Nucleus

D. Microtubules

A. Dendrite

Explanation:Dendrites are the branched extensions of a neuron that receive electrical signals from other neurons.

The following feature suggests a problem at the basal nuclei of the brain:

A. Loss of ability to focus attention.

B. Loss of ability to understand spoken or written language.

C. Too much unnecessary movements.

D. Unexplained fever

C. Too much unnecessary movements.

Explanation: Basal nuclei (basal ganglia) regulate movement control, so dysfunction often causes involuntary or excessive movements like tremors or chorea.

A problem at the level of the spinal cord would likely involve:

A. Loss of short-term memory

B. Coma

C. Loss of vision

D. Muscle paralysis

E. Lack of muscle coordination

D. Muscle paralysis

Explanation :Damage to the spinal cord often results in muscle paralysis below the level of injury due to disrupted motor signal transmission.

The following body function is controlled at the level of the brainstem:

A. Heart rate

B. Temperature

C. Sweating

D. Appetite

E. Digestion

A. Heart rate

Explanation:The brainstem controls vital autonomic functions like heart rate and breathing through centers in the medulla oblongata.

A nerve fiber carrying which of the following signal would be considered afferent?

A. From the cerebral cortex to the spinal cord

B. From the cerebellum to the basal nuclei

C. From the skin to the spinal cord

D. From the spinal cord to a muscle fiber in the arm

: C. From the skin to the spinal cord

Explanation:Afferent nerve fibers carry sensory signals from peripheral receptors (like the skin) toward the central nervous system (spinal cord and brain).

Ask ChatGPT

Which of the following drugs have been implicated in acute chorea?

A. Oral contraceptives

B. Hypertensives

C. Proton pump inhibitors

D. Immunosuppressants

Oral contraceptives

Explanation:Oral contraceptives have been associated with acute chorea as a rare side effect due to their influence on dopamine pathways in the brain.

Benefits of physical therapy include all of the following except:

A. Manage pain

B. Avoid surgery and prescription drugs

C. Vocational retraining

D. Maximize movement

Vocational retraining

Explanatio:Physical therapy focuses on managing pain, improving movement, and sometimes helping avoid surgery or medications, but vocational retraining is typically outside its scope.

The universal feature of patients with chorea is:

A. Uncontrolled motor impersistence

B. Hypertonicity of muscles

C. History of falling

D. Only distal muscle involvement

A. Uncontrolled motor impersistence

Explanation:Chorea is characterized by involuntary, unpredictable, and uncontrolled movements, reflecting motor impersistence across muscle groups.

Analysis of the following characteristics can assist in making the diagnosis for patients with movement disorders

except:

A. Comorbidities

B. Speed of movement

C. Aggravating or precipitating factors

D. Specific distribution

A. Comorbidities

Explanation:While comorbidities are important for overall patient care, diagnosis of movement disorders mainly relies on movement characteristics such as speed, distribution, and triggers rather than unrelated comorbid conditions.

Interventions used by physical therapy to treat chorea include:

A. Aerobic exercises

B. Balance exercises

C. Inspiratory and expiratory exercises

D. All of the above

D. All of the above

Explanation:Physical therapy for chorea often includes aerobic, balance, and respiratory exercises to improve overall motor control and respiratory function.

The primary therapeutic management of chorea includes:

A. Symptom management only since there is no cure.

B. Pharmacological management

C. Electroconvulsive therapy

D. Surgical management

A. Symptom management only since there is no cure.

What disease is not associated with chorea?

A. Huntington's

B. Syndenham's

C. Systemic Lupus Erythematosus

D. Guillain Barre'

D. Guillain-Barré

Explanation:Guillain-Barré syndrome is a peripheral neuropathy characterized by muscle weakness and paralysis, not involuntary movements like chorea, which is seen in Huntington’s, Sydenham’s, and sometimes lupus.

Which neuroanatomy structure is primarily affected in chorea?

A. Brainstem

B. Cerebellum

C. Basal ganglia

D. Frontal lobe

C. Basal ganglia

Explanation:Chorea primarily results from dysfunction in the basal ganglia, which play a crucial role in regulating voluntary motor control and movement coordination.

Chorea is a movement disorder that can be characterized by:

A. rhythmical, involuntary oscillatory movement of a body part

B. A quick, irregular, semi-purposive, and predominantly distal involuntary movement

C. An abnormal movement characterized by sustained muscle contraction, frequently causing twisting and

repetitive movements or abnormal postures.

D. A proximal, high-amplitude movement, often violent and flinging in nature

B. A quick, irregular, semi-purposive, and predominantly distal involuntary movement

Explanation :Chorea is marked by sudden, irregular, non-rhythmic involuntary movements that often appear semi-purposeful and typically affect the distal muscles.

Which of the following medications is best to decrease proteinuria?

A. Diuretics

B. Angiotensin Converting Enzyme Inhibitors

C. Erythropoietin

D. Ergocalciferol

B. Angiotensin Converting Enzyme Inhibitors

Explanation :ACE inhibitors reduce proteinuria by decreasing intraglomerular pressure and improving kidney function through dilation of the efferent arterioles.

Which part of the kidney is affected most in patients living with glomerulonephritis?

A. Macula densa

B. Cortical collecting duct

C. Interstitium

D. Arterioles

E. Basement membrane

E. Basement membrane

Explanation :Glomerulonephritis primarily affects the glomerular basement membrane, leading to impaired filtration and the leakage of proteins and blood into the urine.

Which of the following is NOT commonly found in patients with Nephritic syndrome?

A. Hypertension

B. Declining kidney function

C. Gross blood in the urine

D. High serum levels of cholesterol

E. Low urine output

D. High serum levels of cholesterol

Explanation: High cholesterol is more characteristic of nephrotic syndrome, while nephritic syndrome typically presents with hematuria, hypertension, low urine output, and impaired kidney function.

Which of the following is NOT commonly found in patients with Nephrotic syndrome?

A. Heavy Proteinuria

B. Swelling of the extremities

C. Low serum albumin level

D. High serum levels of cholesterol

E. Gross blood in the urine

E. Gross blood in the urine

Explanation:Gross hematuria is a hallmark of nephritic syndrome, not nephrotic syndrome, which is characterized by heavy proteinuria, edema, low serum albumin, and high cholesterol.

Ask ChatGPT

Which of the following is a function of the normal kidney?

A. Synthesis of clotting factors

B. Sequestration of platelets

C. Production of erythropoietin

D. Anti-body production

C. Production of erythropoietin

Explanation:The kidneys produce erythropoietin, a hormone that stimulates red blood cell production in the bone marrow in response to low oxygen levels.

Which of the following is NOT a symptom of advancing Kidney Disease?

A. Peripheral edema

B. Loss of lean body mass

C. Pulmonary edema

D. Jaundice

E. Fatigue

Jaundice

Explanation:Jaundice is typically associated with liver dysfunction, not kidney disease, while symptoms like edema, fatigue, pulmonary issues, and muscle wasting are common in advanced kidney disease.

Which of the following is the most common etiology of Chronic Kidney Disease?

A. Diabetes

B. Hypertension

C. Vascular Disease

D. Glomerular Disease

E. Urinary Tract Obstruction

A. Diabetes

Explanation:Diabetes mellitus is the leading cause of chronic kidney disease worldwide due to its damaging effects on kidney blood vessels and filtration structures.

Which of the following best describes nephrotic range proteinuria?

A. >500 mg/day

B.>1,500 mg/day

C.>2,500 mg/day

D. >3,500 mg/day

D. >3,500 mg/day

Explanation (1 sentence):Nephrotic range proteinuria is defined as urinary protein excretion exceeding 3.5 grams (3,500 mg) per day, indicating significant kidney damage.

We measure the degree of kidney disease by estimating which of the following?

A. Kidney arterial blood rate

B. Creatinine kinase

C. Glomerular filtration rate

D. Albumin urine rate

C. Glomerular filtration rate

Explanation:Kidney function and disease severity are assessed by estimating the glomerular filtration rate (GFR), which measures how well the kidneys filter blood.

Which of the following molecules travels most freely through the filtration slit of the basement membrane?

A. cations

B. anions

C. neutrons

A. cations

Explanation:Cations (positively charged molecules) pass more freely through the negatively charged filtration slits of the glomerular basement membrane compared to anions, which are repelled.

Which of the following is NOT a layer of the Glomerular Basement Membrane?

A. Lamina densa

B. Lamina rara interna

C. Lamina rara externa

D. Lamina media

D. Lamina media

Explanation:The glomerular basement membrane consists of the lamina rara interna, lamina densa, and lamina rara externa; lamina media is not part of it.

Which of the following molecules, if found in large amounts in the urine, is a marker of kidney damage?

A. acid

B. bicarbonate

C. protein

D. sodium

E. potassium

C. protein

Explanation: Excessive protein in the urine (proteinuria) is a key marker of kidney damage indicating impaired filtration.

Which of the following serum molecules do we use as a biomarker for kidney function?

A. creatinine

B. albumin

C. glucose

D. sodium

E. potassium

: A. creatinine

Explanation:Serum creatinine levels are commonly used to estimate kidney function because creatinine is filtered by the kidneys and accumulates when kidney function declines.

Which of the following best describes the functional unit of the kidney?

A. islet cell

B. glomerulus

C. bowman's capsule

D. arteriole

E. interstitium

B. glomerulus

Explanation (1 sentence):The glomerulus is the key filtering component of the nephron, making it central to the kidney’s function in filtering blood to form urine.

Which of the following conditions are women with lupus five times more likely to suffer from than others?

A. osteopetrosis

B. osteosarcoma

C. osteoma

D. osteoporotic fracture

E. osteomyelitis

D. osteoporotic fracture

Explanation:Women with lupus have an increased risk of osteoporotic fractures due to chronic inflammation and use of corticosteroids that weaken bone density.

Which of the following are characterized as synovial joints exclusively?

A. pubic symphysis

B. cranial sutures

C. sacro-iliac joints

D. metacarpo-phalangeal joints

E. all of the above

D. metacarpo-phalangeal joints

Explanation :Metacarpo-phalangeal joints are synovial joints allowing free movement, whereas pubic symphysis, cranial sutures, and sacro-iliac joints are different types of joints (cartilaginous or fibrous).

What is the mechanism of action for bone mass decrease accompanying glucocorticoid treatment?

A. Osteoclastogenesis is initially inhibited

B. Urinary calcium excretion is decreased

C. Calcium absorption in the gut is promoted

D. RANK-L expression by osteoblasts is initially increased

E. Increased osteoblastic function

D. RANK-L expression by osteoblasts is initially increased

Explanation:Glucocorticoids increase RANK-L expression by osteoblasts, which stimulates osteoclast formation and activity, tipping the balance toward bone resorption and resulting in decreased bone mass.

Which of the following are known iatrogenic effects of lupus treatment with gluccorticoids?

A. osteoporosis

B. avascular necrosis of bone

C. ligament laxity

D. inflammation of joint soft tissue

E. all of the above

E. all of the above

Explanation:Glucocorticoid treatment in lupus patients can cause multiple iatrogenic effects including osteoporosis, avascular necrosis, ligament laxity, and soft tissue inflammation.

What best characterizes the pathological condition osteoporosis?

A. low bone mass

B. low bone mineral

C. decreased production of osteoid

D. defective type I collagen production

E. all of the above

E. all of the above

What is the most accurate means of assessing bone mass?

A. dual energy X-ray absorptimetry (DEXA)

B. MRI

C. Plain film radiograph

D. CT scan

E. CBC and RBC

A. dual energy X-ray absorptiometry (DEXA)

Explanation ):DEXA is the gold standard for accurately measuring bone mineral density and assessing bone mass.

What is the mechanism of action by which avascular necrosis damages bone?

A. Osteoblasts fail to produce osteoid at the pace of bone matrix removal during bone remodeling

B. Osteoblasts migrated to the affected region to commence osteoid secretion.

C. Inflammation spreads from affected soft tissue in joints to neighboring bones.

D. Reduced blood flow to bone impairs remodeling and accumulated tissue damage causes local cell death

E. Mineralized bone matrix is dissolved and phagocytized by erroneously activated osteoclasts

D. Reduced blood flow to bone impairs remodeling and accumulated tissue damage causes local cell death

Explanation:Avascular necrosis occurs when blood supply to the bone is compromised, leading to bone tissue death due to lack of oxygen and nutrients.

Ask ChatGPT

Which of the following characterizes the reaction of bone to weightlessness in space?

A. Promotion of osteoblastic proliferation.

B. Increased bone mass.

C. Increased osteoid secretion.

D. Inhibition of osteoclastic action.

E. Increased risk of developing kidney stones.

E. Increased risk of developing kidney stones.

Explanation :Weightlessness in space leads to bone loss due to increased osteoclastic activity and calcium release, which raises calcium levels in urine, increasing the risk of kidney stones.

When an osteocyte lacks the stimulation of mechanical loading of the surrounding bone, which of the following

occurs?

A. The extracellular matrix in its region attracts additional calcium phosphate

B. Migration of osteoblasts is induced to commence local osteoid secretion.

C. Additional extracellular matrix is secreted into the surrounding area.

D. It activates the bone remodeling process in its local region.

E. The osteocytes begins dissolving the mineralized bone matrix surrounding it.

D. It activates the bone remodeling process in its local region.

Explanation:When osteocytes sense decreased mechanical loading, they signal to initiate bone remodeling, which includes bone resorption and formation to adapt to the new mechanical environment.

Which of the following tests is considered most diagnostic test for breast cancer?

A. biopsy

B. mammogram

C. prostate specific antigen (PSA)

D. Pap smear

A. biopsy

Explanation:A biopsy provides a definitive diagnosis of breast cancer by allowing microscopic examination of suspicious tissue

Which of the following is a common reason for ordering a laboratory test?

A. Screen for a disease

B. Diagnose a disease

C. Follow progress of a disease

D. Monitor therapy

E. All of the above

E. All of the above

Explanation:Laboratory tests are commonly ordered to screen for, diagnose, monitor the progress of diseases, and evaluate the effectiveness of treatments.

64

Which of the following clinical signs may be seen in patients living with systemic lupus erythematosus?

A. Malar rash (butterfly rash on cheeks and nose)

B. Arthritis

C. Kidney disorders

D. Neurologic disorders

E. All of the above.

E. All of the above

Explanation:Systemic lupus erythematosus can present with a variety of clinical signs including malar rash, arthritis, kidney involvement, and neurologic symptoms.

What term describes the consistency and reproducibility of a test or the absence or random variation in a test?

A. sensitivity

B. specificity

C. precision

D. positive predictive value

C. precision

Explanation: Precision refers to the consistency and reproducibility of a test, indicating minimal random variation in its results.

If the prevalence of a disease increases, what happens to a diagnostic test's positive predictive value?

A. increases

B. decreases

C. stays the same

D. cannot be determined

A. increases

Explanation:As disease prevalence increases, the positive predictive value of a diagnostic test rises because a positive result is more likely to be a true positive.

Which of the following statements is true?

A. a test with high specificity is best used as a diagnostic exam

B. a test that is 100% specific has zero false negatives

C. a test with is 50% specific has zero false negatives

D. all the statements are true

A. a test with high specificity is best used as a diagnostic exam

Explanation:High specificity means few false positives, making the test ideal to confirm a diagnosis, whereas specificity does not relate to false negatives.

Which of the following value(s) is/are affected by prevalence?

A. sensitivity

B. specificity

C. predictive value

D. A and B

C. predictive value

Explanation: Predictive values (positive and negative) depend on disease prevalence, while sensitivity and specificity remain constant regardless of prevalence.

Which of the following substances is NOT normally filtered in the glomerulus?

A. Glucose

B. Potassium

C. Chloride

D. Protein

D. Protein

Explanation: Proteins are typically too large to pass through the glomerular filtration barrier and are not normally filtered into the urine.

Which of the following is NOT a hormone produced by the kidney?

A. Renin

B. Aldosterone

C. Erythropoietin

D. Active vitamin D

B. Aldosterone

Explanation:Aldosterone is produced by the adrenal glands, not the kidney, whereas renin, erythropoietin, and active vitamin D are produced or activated by the kidney.

The following statements explain the mechanism of glucocorticoid use in treating autoimmune diseases, EXCEPT:

A. Glucocorticoids suppress inflammation

B. Glucocorticoids activate the immune response

C. Glucocorticoids destroy lymphocytes

D. Glucocorticoids reduce antibody production

B. Glucocorticoids activate the immune response

Explanation: Glucocorticoids suppress rather than activate the immune response, reducing inflammation and lymphocyte activity in autoimmune diseases.

Which cell type is most responsible for clearing cellular debris and necrotic tissue during inflammation?

A. Macrophage

B. Lymphocyte

C. Mast Cell

D. Plasma Cell

A. Macrophage

Explanation:Macrophages are key phagocytic cells that clear cellular debris and necrotic tissue during the inflammatory response.

The following statement is true, EXCEPT.

A. Inflammation is a protective mechanism and essential for survival

B. Atherosclerosis is an inflammatory disease.

C. Inflammation can only occur due to infection.

D. Chronic inflammation increases the risk of cancer.

C. Inflammation can only occur due to infection.

Explanation:Inflammation can result from many causes besides infection, including trauma, autoimmune reactions, and chronic irritants.

Which of the following cells arrive at the inflammatory scene earliest during acute inflammation?

A. Neutrophils

B. Lymphocytes

C. Monocytes

D. Natural killer cells

. Neutrophils

Explanation:Neutrophils are the first immune cells to arrive at the site of acute inflammation to initiate the response against injury or infection.

Which of the following is NOT a cardinal sign of acute inflammation?

A. Swelling

B. Redness

C. Heat

D. Scar formation

D. Scar formation

Explanation :Scar formation is a part of tissue repair, not an immediate cardinal sign of acute inflammation, which includes swelling, redness, heat, pain, and loss of function.

Which of the following is the most common test used for diagnosing arrhythmias?

A. X-ray

B. Magnetic Resonance Imaging (MRI)

C. Electrocardiogram

D. Blood Pressure Measurement

C. Electrocardiogram

Explanation:An electrocardiogram (ECG) is the primary and most common test used to diagnose arrhythmias by recording the heart's electrical activity.

Systolic heart failure is characterized by the following:Death of cardiac muscle cells due to ischemia is called:

A. The heart muscles cannot relax and fill properly.

B. The heart muscle becomes weak and enlarged. The ventricles cannot contract properly.

C. The ejection fraction is around or above 50%.

D. The heart muscles are stiff and rigid.

B. The heart muscle becomes weak and enlarged. The ventricles cannot contract properly.

Explanation:Systolic heart failure occurs when the heart's ventricles lose their ability to contract effectively, leading to reduced ejection fraction and weakened cardiac output.

Death of cardiac muscle cells due to ischemia is called:

A. Myocardial infarction

B. Stable angina

C. Unstable angina

D. Sudden cardiac death

A. Myocardial infarction

Explanation:Myocardial infarction refers to the death of cardiac muscle cells caused by prolonged ischemia (lack of blood flow).

Which symptom is NOT commonly associated with heart failure?

A. Joint stiffness

B. Shortness of breath

C. Leg swelling

D. Tiredness

A. Joint Stiffness

Explanation: Joint stiffness is not commonly associated with heart failure. It’s more typical of conditions like arthritis or other musculoskeletal disorders.

What is the most common cause of myocardial ischemia?

A. Sedentary lifestyle

B. SmokingC. High sodium diet

D. Control blood glucose level

D. Control blood glucose level

What is the most common cause of myocardial ischemia?

A. Atherosclerosis

B. Myocardial vessel inflammation

C. Vascular spasm

D. Bacterial infection

A. Atherosclerosis

Explanation: Myocardial ischemia occurs when blood flow to the heart muscle is reduced, preventing it from getting enough oxygen. The most common cause of this reduced blood flow is: Atherosclerosis - the buildup of fatty plaques in the coronary arteries, which narrows them and limits blood flow.

Pericarditis refers to inflammation of:

A. The inner endothelial layer of the heart.

B. The muscle layer of the heart.

C. The outer membrane of the heart.

D. The blood vessels of the heart.

C. The outer membrane of the heart

Explanation: Pericarditis is inflammation of the pericardium, which is the thin, double-layered sac that surrounds the heart. Its job is to: Protect the heart, Anchor it within the chest, and Reduce friction during heartbeats (with a small amount of lubricating fluid between its layers) When this sac becomes inflamed — due to infection, autoimmune disease, injury, or other causes — it's called pericarditis.

The term "heart failure" refers to:

A. The heart muscle stops pumping blood.

B. The heart's pumping capacity is impaired.

C. An abnormal heart rhythm.

D. Excessive buildup of plaque in the arteries

B. The heart's pumping capacity is impaired.

Explanation: Heart failure means the heart is still beating, but it can't pump blood as well as it should to meet the body's needs for oxygen and nutrients. There are two major forms:

Systolic heart failure – the heart muscle is weak and doesn’t squeeze effectively. Diastolic heart failure – the heart becomes stiff and doesn’t fill properly.

What is the main function of the coronary artery?

A. Carry deoxygenated blood from the heart muscles.

B. Deliver oxygen and nutrition to the heart muscle.

C. Deliver deoxygenated blood to the lungs.

D. Carry oxygenated blood from the lungs.

B. Deliver oxygen and nutrition to the heart muscle

Explanation: The coronary arteries are the blood vessels that supply the heart muscle (myocardium) with oxygen-rich blood and nutrients. Since the heart is constantly working, it needs its own dedicated blood supply — and that’s exactly what the coronary arteries provide.

Which of the following is the nonmodifiable risk factor of atherosclerosis?

A. Age

B. Smoking

C. Hyperlipidemia

D. Obesity

A. Age

Explanation: Nonmodifiable risk factors are those you cannot change, while modifiable risk factors can be controlled or improved through lifestyle or treatment.

Which of the following is a modifiable risk factor for hypertension?

A. Diet

B. Race

C. Gender

D. Heredity

E. Socioeconomic status

A. Diet

Explanation: Modifiable risk factors for hypertension are those you can change or control through lifestyle adjustments or medical interventions.

Which organ is primarily responsible for producing and releasing renin into the circulatory system?

A. Brain

B. Liver

C. Lung

D. Heart

E. Kidney

E. Kidney

Explanation: The kidney, specifically the juxtaglomerular (JG) cells in the afferent arterioles of the nephron, is the primary organ responsible for producing and releasing renin.

Renin is released in response to:

-Low blood pressure

-Low sodium levels

-Sympathetic nervous system activation

Which of the following classes of anti-hypertension is a diuretic?Which of the following classes of anti-hypertension medications is a diuretic?

A. Thiazide

B. Alpha-receptor agonist

C. Beta blocker

D. Angiotensin II receptor blocker

E. Angiotensin-converting-enzyme inhibitor

A. Thiazide

Explanation: Thiazide diuretics are a class of anti-hypertensive medications that work by increasing the excretion of sodium and water from the kidneys. This reduces blood volume and lowers blood pressure.

52 year-old African American male presents with a BP reading of 198/112 mmHg and a 5-year history of treatment

for hypertension. Examination of the retina reveals areas of hypoxia, hemorrhages, and optic nerve swelling

consistent with grade 4 hypertensive retinopathy. He is asymptomatic, alert, and responsive. He is symptomatic for

headaches but denies chest pains and shortness of breath. What is the most accurate classification of the in-office

blood pressure given the patient demographics, complaints, and retinal findings?

A. Send to emergency room for immediate medical attention

B. Send to urgent care facility for immediate medical attention

C. Refer to urgent care within the next 48 - 72 hours

D. Send to PCP in 72 hours

E. Call PCP within 72 hours

A. Send to emergency room for immediate medical attention

Explanation: This is a classic case of a hypertensive emergency: Defined as BP ≥180/120 mmHg with signs of target organ damage. In this case, the eyes (retina/optic nerve) show serious damage. Even though he's awake and responsive, the retinal findings and symptoms confirm end-organ involvement.

The 10% of hypertension cases that are considered "secondary hypertension" have which of the following associated conditions?

A. Lupus

B. Sleep Apnea

C. Sarcoidosis

D. Diabetes

E. Depression

B. Sleep Apnea

Explanation: Sleep apnea is a common cause of secondary hypertension. It leads to repeated drops in oxygen during sleep, which activates the sympathetic nervous system and raises blood pressure. The other options are not common direct causes of secondary hypertension.

The eye can be considered an end-organ frequently targeted by the damaging effects of hypertension.

A. True

B. False

A. True

Explanation: The eye is an end-organ commonly affected by chronic hypertension. High blood pressure can damage the small blood vessels in the retina, leading to hypertensive retinopathy. These changes can impair vision and are signs of target organ damage in hypertensive emergencies or long-term uncontrolled hypertension.

Which of the following patient demographics indicate the highest prevalence of HTN?

A. Non-Hispanic Black

B. Hispanic

C. Non-Hispanic Asian

D. Non-Hispanic White

A. Non-Hispanic Black

Explanation: Non-Hispanic Black individuals have the highest prevalence of hypertension (HTN) among all racial and ethnic groups in the United States. They are also more likely to: Develop hypertension at a younger age, Experience more severe forms, and Suffer greater complications such as stroke, kidney disease, and heart failure. This increased prevalence is influenced by a combination of genetic, environmental, social, and economic factors.

Low HDL is considered hereditary and is much more difficult for patients to change in lifestyle

modifications?

A. True

B. False

A. True