ATI LPN
LPN Pharmacology Practice Test
1. A healthcare professional is reviewing laboratory results for a client who has been taking carbamazepine. Which of the following findings should the healthcare professional report to the provider?
- A. WBC count 3,000/mm3
- B. Platelet count 150,000/mm3
- C. Hemoglobin 14 g/dL
- D. Serum potassium 4.5 mEq/L
Correct answer: A
Rationale: A WBC count of 3,000/mm3 indicates leukopenia, a serious side effect of carbamazepine. Leukopenia can increase the risk of infections due to decreased white blood cell count, which is important to report to the provider for further evaluation and management. Platelet count within normal range (choice B), hemoglobin level within normal range (choice C), and serum potassium level within normal range (choice D) are not directly associated with carbamazepine use and do not require immediate reporting as they do not indicate a serious adverse effect.
2. Prior to a dipyridamole thallium scan, what substance should the LPN/LVN ensure the client has not consumed?
- A. Caffeine
- B. Fatty meal
- C. Excess sugar
- D. Milk products
Correct answer: A
Rationale: Caffeine should be avoided before a dipyridamole thallium scan as it can interfere with the test results. Caffeine is a stimulant that can affect the heart rate and may lead to inaccurate findings during the scan. Fatty meals, excess sugar, and milk products do not specifically interfere with the dipyridamole thallium scan procedure. Therefore, it is essential for the LPN/LVN to check and ensure that the client has not consumed caffeine prior to the procedure to obtain accurate diagnostic results.
3. A client has a new prescription for metformin. Which of the following instructions should the nurse include?
- A. Take the medication with food.
- B. Monitor for signs of hyperglycemia.
- C. Increase your fluid intake.
- D. Expect a sweet taste in your mouth.
Correct answer: C
Rationale: The correct instruction for a client starting metformin is to increase fluid intake. Metformin commonly causes gastrointestinal discomfort, and increasing fluid intake can help alleviate this side effect. Instructing the client to take the medication with food (Choice A) rather than on an empty stomach is recommended to reduce gastrointestinal side effects. Monitoring for signs of hyperglycemia (Choice B) is not directly related to metformin but rather to low blood sugar. Expecting a sweet taste in the mouth (Choice D) is not a common side effect of metformin.
4. A client with hypertension is prescribed metoprolol (Lopressor). The nurse should monitor the client for which side effect?
- A. Tachycardia
- B. Bradycardia
- C. Hypertension
- D. Hyperglycemia
Correct answer: B
Rationale: Metoprolol is a beta-blocker that works by slowing the heart rate. Therefore, the nurse should monitor the client for bradycardia, which is a potential side effect of metoprolol. Bradycardia refers to a heart rate that is slower than normal, and it can be a concern when administering medications like metoprolol that affect heart rate. Choices A, C, and D are incorrect as tachycardia (fast heart rate), hypertension (high blood pressure), and hyperglycemia (high blood sugar) are not typically associated with metoprolol use. In fact, metoprolol is used to treat hypertension and certain heart conditions by lowering heart rate and blood pressure.
5. A client has a new prescription for enalapril. Which of the following instructions should the nurse include?
- A. Monitor for a dry cough.
- B. Take the medication at bedtime.
- C. Avoid consuming grapefruit juice.
- D. Take the medication with food.
Correct answer: A
Rationale: The correct answer is A: Monitor for a dry cough. When a client is prescribed enalapril, it is important to monitor for a dry cough because it can be a side effect that indicates a potential issue like angioedema. This side effect needs close attention as it may require discontinuation of the medication to prevent further complications. Choices B, C, and D are incorrect because enalapril does not need to be taken at bedtime, does not interact with grapefruit juice, and can be taken without regard to meals.
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