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. Which of the following is not a side effect associated with Prednisone toxicity?

A. Cataracts
B. Hypotension
C. Psychosis
D. Acne

Correct answer: B

Rationale: Prednisone toxicity is not typically associated with hypotension; instead, it can lead to hypertension. Cataracts, psychosis, and acne are known side effects of Prednisone toxicity.

3. When starting a new prescription for prednisone, which instruction should the nurse include for the client?

A. Increase your intake of potassium-rich foods.
B. Do not stop taking this medication abruptly.
C. Avoid grapefruit juice while taking this medication.
D. Take the medication at bedtime to prevent drowsiness.

Correct answer: B

Rationale: The correct instruction for a client starting a new prescription for prednisone is not to stop taking the medication abruptly. Abrupt discontinuation of prednisone can lead to adrenal insufficiency, emphasizing the importance of gradual tapering under healthcare provider guidance. Increasing potassium-rich foods may be necessary based on individual needs, but it is not the priority instruction in this context. Grapefruit juice interaction is more commonly associated with certain medications but not specifically with prednisone. Taking prednisone at bedtime to prevent drowsiness is not a key instruction related to its administration.

4. A client is starting therapy with docetaxel. Which of the following findings should the nurse instruct the client to report?

A. Flushing
B. Dyspnea
C. Hyperglycemia
D. Tinnitus

Correct answer: B

Rationale: The correct answer is B: Dyspnea. The nurse should instruct the client to report dyspnea because it can indicate pulmonary toxicity, a serious adverse effect of docetaxel. Dyspnea may be a sign of a potentially life-threatening condition that the healthcare provider needs to address promptly. Flushing (Choice A) is not typically associated with docetaxel therapy. Hyperglycemia (Choice C) is also not a common side effect of docetaxel. Tinnitus (Choice D) is not a usual finding with docetaxel and is not a priority over potential pulmonary toxicity indicated by dyspnea.

5. What is the antidote for Warfarin?

A. Naloxone
B. Vitamin K
C. Glucagon
D. Vitamin B

Correct answer: B

Rationale: The correct antidote for Warfarin is Vitamin K. Warfarin works by inhibiting vitamin K-dependent clotting factors. Administering Vitamin K helps reverse its effects by replenishing these factors. Choices A, C, and D are incorrect. Naloxone is used to reverse opioid overdose, Glucagon is used to treat severe low blood sugar, and Vitamin B is not the antidote for Warfarin.