HESI LPN
Pharmacology HESI 55 Questions 2023
1. The client is receiving vancomycin, and the nurse plans to draw blood for a peak and trough to determine... the best timing for these levels?
- A. Midway through administration of the IV dose and 30 minutes before the next
- B. Two hours after completion of the IV dose and 30 minutes before the next
- C. Two hours after completion of the IV dose and one hour before the next
- D. Immediately after completion of the IV dose and 30 minutes before
Correct answer: B
Rationale: To accurately determine peak and trough levels of vancomycin, blood should be drawn two hours after the completion of the IV dose and 30 minutes before the next dose. This timing allows for appropriate assessment of the drug levels in the body, ensuring accurate monitoring of therapeutic and toxic concentrations. Choice A is incorrect as drawing blood midway through administration does not provide an accurate peak level. Choice C is incorrect as drawing blood one hour before the next dose does not represent the trough level. Choice D is incorrect because drawing blood immediately after completion of the IV dose does not allow enough time for the drug to reach peak levels.
2. A client with anxiety is prescribed alprazolam. What instruction should the nurse include in the client's teaching plan?
- A. Take this medication with food.
- B. Avoid activities that require alertness.
- C. Do not stop taking this medication abruptly.
- D. This medication may cause drowsiness.
Correct answer: C
Rationale: The correct answer is C: 'Do not stop taking this medication abruptly.' Alprazolam should not be stopped suddenly as it can lead to withdrawal symptoms. It is important for clients to taper off the medication gradually under medical supervision to prevent adverse effects. Choices A, B, and D are incorrect. Choice A is irrelevant to alprazolam administration instructions. Choice B, 'Avoid activities that require alertness,' is not the priority teaching point for alprazolam. Choice D, 'This medication may cause drowsiness,' is a common side effect of alprazolam but not the most critical instruction to include in the teaching plan.
3. A client with rheumatoid arthritis is prescribed sulfasalazine. Which instruction should the nurse include in the client's teaching plan?
- A. Take this medication with meals.
- B. Avoid sunlight while taking this medication.
- C. Report any signs of infection to the healthcare provider.
- D. Take this medication on an empty stomach.
Correct answer: A
Rationale: The correct instruction to include in the client's teaching plan regarding sulfasalazine is to take the medication with meals. Taking sulfasalazine with food helps to minimize gastrointestinal upset, which is a common side effect of the medication. Choice B is incorrect because avoiding sunlight is not specifically related to sulfasalazine. Choice C is important but not directly related to the administration of sulfasalazine. Choice D is incorrect because sulfasalazine should be taken with meals to reduce gastrointestinal side effects.
4. A client with a history of stroke is prescribed warfarin. The nurse should monitor for which potential side effect?
- A. Bleeding
- B. Weight gain
- C. Headache
- D. Dizziness
Correct answer: A
Rationale: The correct answer is A: Bleeding. Warfarin is an anticoagulant medication that works by thinning the blood. One of the potential side effects of warfarin is an increased risk of bleeding. It is crucial for the nurse to monitor the client for signs of bleeding, such as unusual bruising, blood in the urine or stool, or prolonged bleeding from cuts or gums. Prompt recognition and management of bleeding are essential to prevent complications. Choices B, C, and D are incorrect as weight gain, headache, and dizziness are not common side effects of warfarin. Monitoring for bleeding is a priority due to the anticoagulant properties of warfarin.
5. What side effect is a male client likely to experience while receiving furosemide 40mg by mouth?
- A. Difficulty starting urination
- B. Nosebleeds
- C. Muscle cramps
- D. Visual disturbances
Correct answer: C
Rationale: Muscle cramps are a common side effect of furosemide due to its impact on electrolyte levels, especially potassium. Furosemide is a loop diuretic that can lead to potassium depletion, resulting in muscle cramps as one of the manifestations of electrolyte imbalances. Therefore, choices A, B, and D are incorrect. Difficulty starting urination is not a common side effect of furosemide; nosebleeds and visual disturbances are not typically associated with this medication.
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