pharm part PART 3 Loop diuretics
Diuretics Overview
Types of Diuretics
Loop Diuretics (e.g., Lasix)
- Key Points to Monitor:
- Blood pressure
- Potassium levels
- Heart rate (not critical)
- BUN and creatinine levels
- I&Os (Input and Output)
- Possible Side Effects:
- Hypokalemia (low potassium)
- Dehydration
- Administering Lasix:
- Administer slowly, typically at a rate of .Thiazide Diuretics (e.g., Hydrochlorothiazide)
- Electrolyte Considerations:
- Can lead to dehydration
- Excretes potassium, which may lead to hypokalemia
- Lowers blood pressurePotassium-Sparing Diuretics (e.g., Spironolactone)
- Monitoring:
- Can lead to hyperkalemia (high potassium levels)Osmotic Diuretics
- Used in emergencies to treat:
- Increased intracranial pressure (ICP)
- Increased intraocular pressure
Schedule for Controlled Substances
- Schedule I: Highly addictive with no medical use
- Schedule II: Has medical uses, potential for abuse
- Examples of Antihypertensives:
- Beta Blockers (e.g., Propranolol)
- Mechanism of Action:
- Blocks sympathetic nervous system effects, which can increase heart rate
- Slows heart rate and dilates blood vessels
- Lowers blood pressure and heart rate
- Uses:
- Anxiety management; antiarrhythmias (e.g., A fib)
- Common Side Effects:
- Drowsiness, fatigue, cold extremities
Additional Antihypertensive Classes
- ACE Inhibitors (e.g., Lisinopril)
- Adverse Effects:
- Dry cough
- Angioedema - Calcium Channel Blockers
- Engages with myocardial contractility, leading to decreased blood pressure
- Common Medications:
- Amlodipine, Verapamil - Alpha/Beta Blockers (e.g., Carvedilol, Labetalol)
- Promote vasodilation
Antihyperlipidemic Medications
- Statins
- Common Side Effects: Rhabdomyolysis (muscle breakdown)
- Signs to Monitor:
- Muscle aches or pains
Antianginals and Their Uses
- Nitroglycerin (Nitro)
- Used for treating chest pain due to decreased oxygen to the heart
- Administration:
- Can be administered sublingually, one every five minutes, up to three times
- Replace every six months if stored properly
- Do not use with erectile dysfunction medications due to severe hypotensive effects
- Common side effect: headache
Anticoagulant Therapies
- Warfarin (Coumadin)
- Monitored by INR (normal range: 0.8 - 1.1, therapeutic range: )
- Antidote: Vitamin K - Heparin
- Monitored by PT (11-13.5 seconds) and PTT (25-30 seconds)
- Antidote: Protamine sulfate
Carbonic Anhydrase Inhibitors
- Class of diuretics that affect sodium and water balance
- Used primarily for treating glaucoma by decreasing intraocular pressure
Corticosteroids in Endocrine Treatment
- Function: Mimic hormones produced by adrenal glands; possess anti-inflammatory properties
- Administration Forms: Oral, IV, topical, inhaled
- Adverse Effects: Immunosuppression, hyperglycemia (increased blood glucose)
- Common Medications: Cortisone, Hydrocortisone, Prednisone, Prednisolone
- Patient Education: Monitor signs of hyperglycemia, adjust insulin as necessary
Antidiabetics and Monitoring
- Monitor effectiveness via A1C (average glucose over three months)
- Key Medications:
- An insulin: subcutaneous administration; regular insulin can be given IV
- Metformin: commonly causes diarrhea, typically stabilizes over time
- Januvia: enhances insulin response and reduces glucose release from liver - Insulin Types and Administration Timing:
- Short-acting (e.g., Humalog): administer within five to fifteen minutes of a meal
- Regular insulin: administer within thirty minutes of a meal
- Long-acting (e.g., Lantus): administer at scheduled time regardless of current blood sugar
Hormone Replacement Therapies
- Vasopressin: Antidiuretic hormone; holds water to raise blood pressure in dehydration situations
- Synthroid (Levothyroxine): Synthetic thyroid hormone for hypothyroidism; administer on an empty stomach first thing in the morning to maximize absorption