ATI LPN
LPN Pharmacology Practice Test
1. A client has a new prescription for levothyroxine. Which of the following instructions should the nurse include?
- A. Take the medication on an empty stomach.
- B. Take the medication with food.
- C. Take the medication at bedtime.
- D. Take the medication with an antacid.
Correct answer: A
Rationale: The correct answer is A: 'Take the medication on an empty stomach.' Levothyroxine should be taken on an empty stomach to ensure optimal absorption. Food, especially high-fiber foods, can interfere with the absorption of levothyroxine. Taking it with an antacid or at bedtime may also affect its absorption. Instructing the client to take the medication on an empty stomach will help maintain consistent blood levels of levothyroxine. Choice B is incorrect as taking levothyroxine with food can reduce its absorption. Choice C is incorrect because taking levothyroxine at bedtime may lead to inconsistent blood levels due to food intake during the day. Choice D is incorrect as antacids can interfere with the absorption of levothyroxine.
2. The LPN/LVN is assisting with the care of a client who has been diagnosed with a myocardial infarction (MI). Which laboratory test result would the nurse expect to see elevated within the first 24 hours of the client's admission?
- A. Serum troponin
- B. Serum creatinine
- C. Serum sodium
- D. Serum albumin
Correct answer: A
Rationale: Elevated serum troponin levels are indicative of myocardial damage and are commonly used as a diagnostic marker for myocardial infarction. Troponin levels typically rise within a few hours of an MI and remain elevated for several days, making it a crucial test for early detection and monitoring of cardiac injury. Serum creatinine is not typically elevated in the acute phase of a myocardial infarction. Serum sodium and serum albumin levels are not directly associated with myocardial infarction and are unlikely to be elevated in the first 24 hours following an MI.
3. A client with a history of coronary artery disease (CAD) is prescribed atorvastatin (Lipitor). The nurse should teach the client about which common side effect of this medication?
- A. Dry mouth
- B. Muscle pain
- C. Drowsiness
- D. Diarrhea
Correct answer: B
Rationale: Muscle pain is a common side effect of statins like atorvastatin. It is important for the nurse to educate the client about this potential side effect, as it can indicate a serious condition called rhabdomyolysis, which requires immediate medical attention. Dry mouth, drowsiness, and diarrhea are not typically associated with atorvastatin use.
4. A client with a history of heart failure is prescribed metoprolol (Lopressor). The nurse should monitor the client for which common side effect of this medication?
- A. Tachycardia
- B. Hypotension
- C. Hypertension
- D. Hyperglycemia
Correct answer: B
Rationale: Metoprolol is a beta-blocker commonly used in heart failure to reduce blood pressure. One of the common side effects of metoprolol is hypotension, which can lead to dizziness, lightheadedness, and even fainting. Therefore, monitoring for hypotension is essential to prevent adverse effects and ensure patient safety. Choices A, C, and D are incorrect. Tachycardia is not a common side effect of metoprolol, as it actually reduces heart rate. Hypertension is also not a common side effect of this medication, as it is intended to lower blood pressure. Hyperglycemia is not a typical side effect of metoprolol.
5. A nurse is assessing a client who has been taking levothyroxine for hypothyroidism. Which of the following findings should the nurse report to the provider?
- A. Weight loss
- B. Insomnia
- C. Heat intolerance
- D. Dry skin
Correct answer: C
Rationale: The correct answer is C: Heat intolerance. Heat intolerance is a sign of levothyroxine toxicity and requires immediate attention. Weight loss may actually be an expected outcome of levothyroxine therapy as it can help regulate metabolism in hypothyroidism. Insomnia can occur as a side effect of levothyroxine but is not as concerning as heat intolerance. Dry skin is a common symptom of hypothyroidism and may improve with levothyroxine therapy, so it is not a priority finding to report to the provider.
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