ATI RN
ATI Proctored Pharmacology Test
1. A client has a fungal infection and a new prescription for amphotericin B. Which of the following laboratory values should the nurse report to the provider before initiating the medication?
- A. Sodium 140 mEq/L
- B. Potassium 4.5 mEq/L
- C. BUN 55 mg/dL
- D. Glucose 120 mg/dL
Correct answer: C
Rationale: An elevated BUN level of 55 mg/dL should be reported before starting amphotericin B due to its nephrotoxic effects. Amphotericin B can cause kidney damage, and an elevated BUN indicates impaired kidney function, increasing the risk of further renal damage with this medication. Sodium, potassium, and glucose levels are not directly associated with the nephrotoxic effects of amphotericin B, making choices A, B, and D incorrect.
2. A client with cirrhosis is about to receive a dose of lactulose. The client questions the need for the medication, stating they are not constipated. The nurse should explain that lactulose is used in cirrhosis to reduce levels of which component in the bloodstream?
- A. Glucose
- B. Ammonia
- C. Potassium
- D. Bicarbonate
Correct answer: B
Rationale: Lactulose is administered to clients with cirrhosis to lower blood ammonia levels, thus aiding in the prevention of hepatic encephalopathy. Elevated ammonia levels in cirrhosis can lead to cognitive impairment and hepatic encephalopathy. Therefore, the correct answer is B (Ammonia). Glucose (Choice A) is not the component targeted by lactulose in cirrhosis. Potassium (Choice C) and Bicarbonate (Choice D) are not directly affected by lactulose administration in cirrhosis.
3. Which of the following drugs has a therapeutic effect that prevents thromboembolic events?
- A. Warfarin
- B. Amlodipine
- C. Nitroglycerin
- D. Clopidogrel
Correct answer: A
Rationale: The correct answer is Warfarin. Warfarin is an anticoagulant medication that helps prevent thromboembolic events by inhibiting the formation of blood clots. It is commonly used to reduce the risk of strokes or heart attacks in patients at risk for thrombosis.
4. A healthcare professional is educating a client who is starting therapy with topotecan. Which of the following findings should the professional instruct the client to report?
- A. Hair loss
- B. Fatigue
- C. Sore throat
- D. Red urine
Correct answer: C
Rationale: The correct answer is C: 'Sore throat.' Clients starting therapy with topotecan should be instructed to report a sore throat because it can indicate an infection due to the immunosuppressive effects of the medication. Infections can be serious in clients undergoing chemotherapy, so early detection and treatment are crucial to prevent complications. Choices A, B, and D are incorrect because while they are potential side effects of topotecan, they are usually not as immediately concerning as a sore throat, which could signal a serious infection requiring prompt attention.
5. A client in an acute care facility is receiving IV Nitroprusside for hypertensive crisis. The nurse should monitor the client for which of the following adverse reactions to this medication?
- A. Intestinal ileus
- B. Neutropenia
- C. Delirium
- D. Hyperthermia
Correct answer: C
Rationale: The correct answer is C: Delirium. When IV Nitroprusside is infused at high dosages, it can lead to thiocyanate toxicity, causing mental status changes such as delirium. It is crucial to monitor the thiocyanate levels to ensure they remain below 10 mg/dL during therapy to prevent adverse effects. Choices A, B, and D are incorrect because IV Nitroprusside is not commonly associated with intestinal ileus, neutropenia, or hyperthermia. Monitoring for delirium is crucial due to the risk of thiocyanate toxicity.
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