ace inhibitors

ATI RN

ATI Proctored Pharmacology Test

1. How do ACE inhibitors work?

A. Block the vasoconstrictor and aldosterone effects of angiotensin II at the receptor site
B. Block stimulation of beta 1 and beta 2 at the receptor sites
C. Block the conversion of angiotensin I to the vasoconstrictor angiotensin II
D. None of the above

Correct answer: C

Rationale: ACE inhibitors work by inhibiting the conversion of angiotensin I to angiotensin II. Angiotensin II is a potent vasoconstrictor, and by blocking its production, ACE inhibitors help dilate blood vessels, reduce blood pressure, and decrease the workload of the heart. Choice A is incorrect because it describes the mechanism of action of angiotensin receptor blockers (ARBs), not ACE inhibitors. Choice B is incorrect as it describes beta-blockers, not ACE inhibitors. Choice D is incorrect as ACE inhibitors do have a specific mechanism of action.

2. A healthcare provider is reviewing a client's health record and notes that the client is experiencing episodes of hypokalemia. Which of the following medications should the healthcare provider identify as a cause of the client's hypokalemia?

A. Captopril
B. Lisinopril
C. Furosemide
D. Spironolactone

Correct answer: C

Rationale: Furosemide is a loop diuretic that acts on the kidneys to increase urine production. This increased urine output can lead to the excessive excretion of potassium, resulting in hypokalemia. Monitoring potassium levels and considering supplementation may be necessary when a patient is on furosemide to prevent or manage hypokalemia.

3. A client has a new prescription for nitroglycerin sublingual tablets. Which of the following instructions should the nurse include?

A. Take one tablet at the first sign of chest pain.
B. If pain is not relieved, take another tablet in 10 minutes.
C. You can take up to five tablets in 15 minutes.
D. Swallow the tablet with water.

Correct answer: A

Rationale: The correct instruction for a client with a new prescription for nitroglycerin sublingual tablets is to take one tablet at the first sign of chest pain. If the pain persists after 5 minutes, the client should call 911 and take a second tablet. Choice A is correct because taking one tablet at the onset of chest pain helps to relieve symptoms by dilating blood vessels and improving blood flow to the heart. Choices B and C are incorrect as they suggest taking multiple tablets without waiting for the initial dose to take effect, which can lead to hypotension and other adverse effects. Choice D is incorrect as nitroglycerin sublingual tablets should not be swallowed but instead placed under the tongue for rapid absorption.

4. A client has a prescription for ceftriaxone. Which of the following information should the nurse include in the teaching?

A. You may develop a cough while taking this medication.
B. You should stop taking this medication if you develop a rash.
C. This medication can be given orally.
D. This medication may cause your urine to turn yellow.

Correct answer: B

Rationale: The correct answer is B. The nurse should instruct the client to discontinue ceftriaxone if a rash develops, as it could indicate an allergic reaction that needs to be reported to the healthcare provider for further evaluation and management. Choices A, C, and D are incorrect because cough development, oral administration, and yellow urine are not typically associated with ceftriaxone use and are not critical information that the nurse needs to emphasize in this scenario.

5. Hydrochlorothiazide is classified as a

A. Anti-inflammatory
B. Antiarrhythmic
C. Diuretic
D. Antifungal

Correct answer: C

Rationale: Hydrochlorothiazide is classified as a diuretic. Diuretics are medications that help the body get rid of excess salt and water by increasing urine production, reducing fluid retention, and lowering blood pressure. Option A, Anti-inflammatory, is incorrect because hydrochlorothiazide does not primarily reduce inflammation. Option B, Antiarrhythmic, is incorrect because hydrochlorothiazide is not used to correct heart rhythm irregularities. Option D, Antifungal, is incorrect because hydrochlorothiazide is not used to treat fungal infections.