Antihypertensive drug classes exam review
A comprehensive review of antihypertensive drug classes for pharmacology students, covering mechanisms, indications, and side effects.
Quiz(30 questions)
1. What do ACE inhibitors primarily target in hypertension management?
Terms in this Study Set(30)
Flashcards 1(15)
What are ACE inhibitors?
Angiotensin-converting enzyme inhibitors help relax blood vessels. Examples: Lisinopril, Enalapril.
True or False: Beta-blockers increase heart rate.
False. Beta-blockers decrease heart rate and reduce blood pressure.
Calcium channel blockers → Effect
Relax smooth muscles, decrease heart rate, lower blood pressure. Examples: Amlodipine, Diltiazem.
Fill in the blank: Thiazide diuretics are primarily used to treat _____ hypertension.
Essential hypertension.
What is the mechanism of action for ARBs?
Angiotensin receptor blockers prevent angiotensin II from constricting blood vessels. Examples: Losartan, Valsartan.
Compare thiazide diuretics and loop diuretics.
Thiazide: mild diuresis, used for hypertension. Loop: strong diuresis, used for heart failure.
What do aldosterone antagonists do?
They block aldosterone, leading to sodium excretion and potassium retention. Example: Spironolactone.
True or False: Direct vasodilators are first-line treatment for hypertension.
False. Used in severe hypertension or emergencies, not first-line.
What is the primary use of beta-blockers?
Management of hypertension, heart failure, anxiety, and arrhythmias.
Cause → Effect: Use of diuretics
Causes increased urination, leading to lower blood volume and reduced blood pressure.
What is the role of renin in hypertension?
Renin initiates the renin-angiotensin-aldosterone system, raising blood pressure.
What are common side effects of ACE inhibitors?
Cough, elevated potassium levels, angioedema.
Fill in the blank: ARBs are used when _____ inhibitors are not tolerated.
ACE.
What are key patient considerations for diuretics?
Monitor electrolytes, hydration status, and renal function.
True or False: Calcium channel blockers can cause peripheral edema.
True. This is a common side effect due to vasodilation.
Flashcards 2(15)
Define ACE inhibitors.
ACE inhibitors block the angiotensin-converting enzyme, reducing angiotensin II production. This lowers blood pressure and improves heart function.
True or False: Calcium channel blockers only affect the heart.
False: They also relax blood vessels, reducing vascular resistance.
List two common side effects of beta-blockers.
- Fatigue - Bradycardia
What do diuretics do?
Diuretics promote urine production, helping to eliminate excess sodium and water, reducing blood volume and pressure.
Compare ARBs and ACE inhibitors.
Both lower blood pressure but ARBs block receptor action of angiotensin II, while ACE inhibitors block its formation.
Fill in the blank: Thiazide diuretics primarily act on the ______.
distal convoluted tubule of the nephron.
How do direct vasodilators work?
They relax smooth muscle in blood vessels, decreasing peripheral vascular resistance and lowering blood pressure.
What is the mechanism of action of beta-blockers?
They block beta-adrenergic receptors, reducing heart rate and contractility, ultimately lowering cardiac output.
True or False: ARBs are preferred over ACE inhibitors for patients with a history of cough.
True: They do not typically cause cough, making them better tolerated.
Name a common thiazide diuretic.
Hydrochlorothiazide is a widely used thiazide diuretic.
Cause → Effect: What happens when blood vessels dilate?
Blood pressure decreases due to reduced vascular resistance.
What is the primary use of alpha-1 blockers?
Alpha-1 blockers primarily treat hypertension by relaxing blood vessel muscles.
List two contraindications for beta-blockers.
- Asthma - Severe bradycardia
Describe the effect of potassium-sparing diuretics.
They prevent potassium loss while promoting sodium and water excretion, helping to manage hypertension without hypokalemia.
What is a risk associated with direct vasodilators?
They can cause reflex tachycardia, increasing heart rate as a compensatory mechanism.
Questions in this Study Set(30)
1. What do ACE inhibitors primarily target in hypertension management?
2. What is the primary role of ACE inhibitors in treating hypertension?
3. True or False: Beta-blockers are often prescribed to increase heart rate.
4. Which drug class is primarily used for controlling heart rhythm and lowering blood pressure?
5. Which medication class is known to cause peripheral edema as a side effect?
6. Fill in the blank: Beta-blockers primarily block ______ receptors.
7. Fill in the blank: Loop diuretics are primarily used for _____ heart failure.
8. Which statement about diuretics is NOT true?
9. What is the main function of angiotensin receptor blockers (ARBs)?
10. True or False: ARBs can cause a persistent cough like ACE inhibitors.
11. Which class of antihypertensive drugs is NOT typically used for essential hypertension?
12. What is the mechanism of action of alpha-1 blockers?
13. What is one key effect of diuretics on blood volume?
14. When considering a patient with asthma, which class of antihypertensive is generally contraindicated?
15. Which medication class is most commonly used for patients with hypertension and heart failure?
16. What is a common side effect of thiazide diuretics?
17. What is a common side effect of thiazide diuretics?
18. Which of the following is an example of a direct vasodilator?
19. Fill in the blank: Aldosterone antagonists help with potassium _____ while promoting sodium _____ .
20. What effect do potassium-sparing diuretics have on potassium levels?
21. What is the mechanism of action of beta-blockers in hypertension treatment?
22. Which class of drugs would be preferred for a patient with hypertension and a history of cough?
23. True or False: ARBs can be used when ACE inhibitors are not tolerated.
24. What is a potential risk associated with direct vasodilators?
25. What is the role of renin in the body related to hypertension?
26. Which is NOT a common side effect of beta-blockers?
27. Which statement is true regarding direct vasodilators?
28. What site do thiazide diuretics primarily act upon in the nephron?
29. Which class of antihypertensive agents primarily inhibits the reabsorption of sodium in the distal convoluted tubule?
30. What is the primary therapeutic effect of calcium channel blockers?
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