ATI RN
Proctored Pharmacology ATI
1. A healthcare professional is preparing to administer Spironolactone to a client. Which of the following laboratory results should the professional review before administering this medication?
- A. Serum potassium.
- B. Serum sodium.
- C. Serum chloride.
- D. Serum calcium.
Correct answer: A
Rationale: When administering Spironolactone, it is essential to monitor the client's serum potassium levels because Spironolactone is a potassium-sparing diuretic. Monitoring potassium levels helps to detect hyperkalemia, a potential adverse effect of the medication.
2. A client prescribed Isosorbide Mononitrate for chronic stable Angina develops reflex tachycardia. Which of the following medications should the nurse expect to administer?
- A. Furosemide
- B. Captopril
- C. Ranolazine
- D. Metoprolol
Correct answer: D
Rationale: Metoprolol, a beta-adrenergic blocker, is commonly used to treat hypertension and stable angina pectoris. It is often prescribed to decrease heart rate in clients who develop tachycardia, such as in the case of reflex tachycardia induced by Isosorbide Mononitrate, making it the appropriate choice in this scenario. Furosemide (Choice A) is a loop diuretic used for conditions like heart failure and edema, not for reflex tachycardia. Captopril (Choice B) is an ACE inhibitor primarily used for hypertension and heart failure, not for reflex tachycardia. Ranolazine (Choice C) is used for chronic angina but does not specifically address reflex tachycardia.
3. When taking Digoxin, low levels of what can cause toxicity?
- A. Potassium
- B. Calcium
- C. Sodium
- D. Magnesium
Correct answer: A
Rationale: Low potassium levels can lead to Digoxin toxicity. Digoxin competes with potassium for binding sites on the sodium-potassium pump. When potassium levels are low, there is an increased risk of Digoxin binding and toxicity. Choice B (Calcium) is incorrect because low calcium levels are not directly linked to Digoxin toxicity. Choice C (Sodium) is incorrect as low sodium levels do not cause Digoxin toxicity. Choice D (Magnesium) is incorrect as low magnesium levels do not contribute to Digoxin toxicity.
4. A client with Hodgkin's disease is receiving Cyclophosphamide IV. Which medication should be administered concurrently to prevent an adverse effect of Cyclophosphamide?
- A. Uroprotectant agent, such as mesna
- B. Opioid, such as morphine
- C. Loop diuretic, such as furosemide
- D. H1 receptor antagonist, such as diphenhydramine
Correct answer: A
Rationale: Mesna, an uroprotectant agent, is administered with nitrogen mustard chemotherapy drugs like Cyclophosphamide to prevent hemorrhagic cystitis, a common adverse effect. Mesna works by binding to and inactivating the toxic metabolites of Cyclophosphamide in the bladder, thereby reducing the risk of bladder toxicity.
5. A client is prescribed Bethanechol to treat urinary retention. Which of the following findings is a manifestation of muscarinic stimulation?
- A. Dry mouth
- B. Hypertension
- C. Excessive perspiration
- D. Fecal impaction
Correct answer: C
Rationale: Bethanechol is a muscarinic agonist, which stimulates muscarinic receptors. Activation of these receptors can lead to increased sweating (excessive perspiration) as a manifestation of muscarinic stimulation. Options A, B, and D are not typically associated with muscarinic stimulation. Dry mouth is a common side effect of anticholinergic medications, hypertension is not a common manifestation of muscarinic stimulation, and fecal impaction is not directly related to muscarinic receptor activation.
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