HESI LPN
HESI Practice Test Pharmacology
1. A client who received a prescription for cyclosporine ophthalmic emulsion for dry eyes asks the practical nurse (PN) if it is safe to continue using artificial tears. What information should the PN provide?
- A. Avoid using artificial tears because they decrease the efficacy of cyclosporine.
- B. Discontinue the use of both products if transient blurring occurs after administration.
- C. Allow a 15-minute interval between the administration of cyclosporine and artificial tears.
- D. Discontinue the use of cyclosporine and artificial tears when tear production reaches a normal level.
Correct answer: C
Rationale: The correct answer is to allow a 15-minute interval between the administration of cyclosporine and artificial tears. Cyclosporine, an ophthalmic emulsion that increases tear production, can be used in conjunction with artificial tears as long as the products are administered 15 minutes apart. This interval helps to prevent any potential interactions between the two products and ensures optimal effectiveness of cyclosporine for treating dry eyes.
2. A practical nurse is reviewing the medication administration record for a client prescribed prednisone. What potential side effect should the nurse monitor for?
- A. Hypoglycemia
- B. Weight loss
- C. Hypertension
- D. Diarrhea
Correct answer: C
Rationale: Prednisone, a corticosteroid, can cause side effects such as hypertension, fluid retention, and weight gain. Hypertension is a common side effect of prednisone due to its impact on sodium and fluid retention in the body. Monitoring blood pressure is crucial to detect and manage hypertension in clients taking prednisone. Choices A, B, and D are incorrect. While prednisone can indirectly affect blood glucose levels, hypoglycemia is not a common side effect. Weight gain, not weight loss, is more prevalent with prednisone use. Diarrhea is not a typical side effect associated with prednisone.
3. A client has metoprolol prescribed. The nurse should reinforce instructions that this medication has which potential adverse effect?
- A. Anxiety
- B. Tachycardia
- C. Sexual dysfunction
- D. Acute renal failure
Correct answer: C
Rationale: The correct answer is C: Sexual dysfunction. Metoprolol, a beta-blocker, can cause sexual dysfunction as an adverse effect. It is important for the nurse to educate the client about this potential side effect. Choice A is incorrect because metoprolol can cause depression, not anxiety. Choice B is incorrect as tachycardia is not an adverse effect of metoprolol; instead, it can lead to bradycardia. Choice D is incorrect because acute renal failure is not typically associated with the use of beta-blockers.
4. A 6-month-old infant is prescribed digoxin for the treatment of congestive heart failure. Which observation by the practical nurse (PN) warrants immediate intervention for signs of digoxin toxicity?
- A. Apical heart rate of 60 beats/min
- B. Sweating across the forehead
- C. Poor sucking effort
- D. Respiratory rate of 30 breaths/min
Correct answer: A
Rationale: A heart rate of 60 beats/min for a 6-month-old infant warrants immediate intervention as it falls below the normal range. The normal heart rate for a 6-month-old is 80 to 150 beats/min when awake, and a rate of 70 beats/min while sleeping is considered within normal limits. Bradycardia (heart rate <60 beats/min) in infants can be a sign of digoxin toxicity, necessitating prompt evaluation and intervention to prevent adverse effects. Sweating across the forehead (Choice B) is a non-specific symptom and may not directly indicate digoxin toxicity. Poor sucking effort (Choice C) and a respiratory rate of 30 breaths/min (Choice D) are not typically associated with digoxin toxicity and do not require immediate intervention in the context of this question.
5. 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.
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