ATI RN
ATI Pharmacology Quizlet
1. A client with angina is seeking a prescription for sildenafil to manage erectile dysfunction. Which of the following medications is contraindicated with Sildenafil?
- A. Aspirin
- B. Isosorbide
- C. Clopidogrel
- D. Atorvastatin
Correct answer: B
Rationale: Isosorbide, an organic nitrate used for angina, is contraindicated with sildenafil due to the risk of fatal hypotension. Concurrent use of these medications can lead to severe hypotension. Patients are advised to avoid taking nitrate medications for 24 hours after using isosorbide to prevent this dangerous interaction.
2. A client is prescribed Amitriptyline for depression. What should the nurse include in the teaching? (Select all that apply.)
- A. Expect therapeutic effects in 1-3 weeks.
- B. Discontinue the medication gradually under healthcare provider supervision.
- C. Change positions slowly to minimize dizziness.
- D. Increase dietary fiber intake to prevent constipation.
Correct answer: C
Rationale: The correct answer is C. Changing positions slowly can help prevent orthostatic hypotension, a common adverse effect of tricyclic antidepressants like Amitriptyline. It is essential to educate the client to avoid sudden position changes to minimize the risk of dizziness and falls. Choices A, B, and D are incorrect. The therapeutic effects of Amitriptyline may not be noticeable for 1-3 weeks, so expecting them in 24 to 48 hours (choice A) is unrealistic. Discontinuing the medication abruptly can lead to withdrawal symptoms and should be done gradually under healthcare provider supervision, so choice B is incorrect. Amitriptyline can actually cause constipation, so increasing dietary fiber intake would be recommended to prevent constipation, making choice D incorrect.
3. What is one therapeutic use for nitroglycerin?
- A. Relief or prevention of anginal attacks
- B. Diuresis and mobilization of excess fluid
- C. Decreasing nausea and vomiting
- D. Relief of anxiety
Correct answer: A
Rationale: Nitroglycerin is primarily used for the relief or prevention of anginal attacks. It works by dilating blood vessels, increasing blood flow and oxygen to the heart muscle, thereby relieving chest pain caused by angina. The medication is not indicated for diuresis, antiemetic effects, or anxiety relief. Therefore, choices B, C, and D are incorrect as they do not reflect the therapeutic use of nitroglycerin.
4. 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.
5. A client is receiving Gentamicin. Which of the following laboratory values should the nurse monitor to assess for nephrotoxicity?
- A. Serum sodium.
- B. Serum creatinine.
- C. Serum potassium.
- D. Serum glucose.
Correct answer: B
Rationale: When a client is receiving Gentamicin, the nurse should monitor serum creatinine levels to assess for nephrotoxicity. Gentamicin is known to potentially cause nephrotoxicity, leading to impaired kidney function. Monitoring serum creatinine levels helps in early detection of any kidney damage or dysfunction. Serum sodium, serum potassium, and serum glucose levels are not directly related to nephrotoxicity caused by Gentamicin, so they are not the appropriate values to monitor in this case.
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