ATI RN
ATI Pharmacology
1. A healthcare provider is caring for a client who has a new prescription for Digoxin. Which of the following findings should the healthcare provider identify as a potential sign of Digoxin toxicity?
- A. Nausea
- B. Dry mouth
- C. Hypoglycemia
- D. Tinnitus
Correct answer: A
Rationale: Nausea is a potential sign of Digoxin toxicity. Along with vomiting, visual disturbances, and confusion, it can be an early indication of an overdose. Dry mouth is not typically associated with Digoxin toxicity. Hypoglycemia is a low blood sugar level and is not directly related to Digoxin toxicity. Tinnitus, a ringing in the ears, is not a common sign of Digoxin toxicity. Healthcare providers should closely monitor clients on Digoxin for symptoms like nausea to prevent serious complications.
2. Potassium-sparing diuretics primarily affect which part of the kidney?
- A. Proximal convoluted tubule
- B. Loop of Henle
- C. Collecting duct
- D. Distal convoluted tubule
Correct answer: D
Rationale: Potassium-sparing diuretics exert their primary effects on the distal convoluted tubule in the kidney. By acting on this specific part of the nephron, these diuretics promote sodium excretion while sparing potassium, thus helping to maintain potassium levels in the body. This mechanism differs from other diuretics that may cause potassium loss as a side effect. Understanding the site of action of potassium-sparing diuretics is crucial in clinical practice for managing conditions like hypertension and edema where diuresis is necessary without the risk of hypokalemia.
3. A client is being taught about taking Tetracycline to treat a GI infection caused by Helicobacter pylori. Which of the following statements should indicate to the nurse that the client understands the instructions?
- A. I will take this medication with 8 ounces of milk.
- B. I will inform my doctor if I experience diarrhea.
- C. I can discontinue this medication when I feel completely well.
- D. I can take this medication just before bedtime.
Correct answer: B
Rationale: The correct answer is B. Diarrhea can indicate the development of a suprainfection, which can be serious. Therefore, it is essential for the client to notify the healthcare provider if they experience diarrhea while taking Tetracycline to treat a GI infection caused by Helicobacter pylori. Choices A, C, and D are incorrect because taking Tetracycline with milk can reduce its absorption, discontinuing the medication prematurely can lead to treatment failure, and taking it just before bedtime may increase the risk of esophageal irritation due to the potential reflux of the medication.
4. Why has an ACE inhibitor been prescribed following an MI?
- A. “This medication will lower your potassium level.”
- B. “ACE inhibitors have been found to reduce mortality following MI.”
- C. “ACE inhibitors are always prescribed with a beta blocker and calcium channel blocker following an MI.”
- D. “This medication will treat your hypotension.”
Correct answer: B
Rationale: Following a myocardial infarction (MI), ACE inhibitors are commonly prescribed due to their proven benefit in reducing mortality and improving outcomes post-MI. These medications help by decreasing the workload of the heart, preventing remodeling of the heart chambers, and improving survival rates. While ACE inhibitors may have effects on potassium levels, the primary reason for their prescription post-MI is their mortality-reducing properties.
5. A client has a new prescription for Atenolol. Which of the following statements should be included by the healthcare provider?
- A. Take the medication with a high-fat meal.
- B. Monitor your heart rate before taking the medication.
- C. Expect a persistent cough.
- D. Avoid foods high in fiber.
Correct answer: B
Rationale: When a client is prescribed Atenolol, a beta-blocker, they should monitor their heart rate before taking the medication. It is crucial because if the heart rate is below 60 bpm, the client needs to contact their healthcare provider for further guidance and evaluation. Choices A, C, and D are incorrect. Atenolol does not need to be taken with a high-fat meal, does not typically cause a persistent cough, and there is no need to avoid foods high in fiber when taking this medication.
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