HESI LPN
Pharmacology HESI 2023
1. 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.
2. An adolescent client with a seizure disorder is prescribed the anticonvulsant medication carbamazepine. The nurse should notify the healthcare provider if the client develops which condition?
- A. Experiences dry mouth.
- B. Experiences dizziness.
- C. Develops a sore throat.
- D. Develops gingival hyperplasia.
Correct answer: C
Rationale: The correct answer is C: 'Develops a sore throat.' When a client on carbamazepine develops flu-like symptoms such as pallor, fatigue, sore throat, and fever, it could indicate blood dyscrasias (aplastic anemia, leukopenia, anemia, thrombocytopenia), which are potential adverse effects of the medication. These symptoms warrant immediate notification of the healthcare provider for further evaluation and management to prevent complications. Choices A, B, and D are incorrect because dry mouth, dizziness, and gingival hyperplasia are not commonly associated with carbamazepine use and do not indicate serious adverse effects that require immediate healthcare provider notification.
3. A practical nurse (PN) is reviewing teaching with the client and/or significant others about the concurrent use of benztropine and olanzapine to manage psychotic behavior. What information should the PN reinforce?
- A. Benztropine will reduce olanzapine's side effect of urinary retention.
- B. Benztropine potentiates the effect of olanzapine.
- C. Benztropine is used to control the side effects of olanzapine.
- D. The combined effect of these drugs will modify psychotic behavior.
Correct answer: C
Rationale: The correct answer is C because benztropine, an anticholinergic drug, is used to control extrapyramidal symptoms associated with olanzapine use. Choice A is incorrect because benztropine does not directly reduce olanzapine's side effect of urinary retention. Choice B is incorrect as benztropine does not potentiate the effect of olanzapine; its main role is to counteract extrapyramidal symptoms. Choice D is incorrect because the primary purpose of using benztropine alongside olanzapine is to manage side effects, not specifically to modify psychotic behavior.
4. A client who was diagnosed with oral thrush calls the clinic saying the medication bottle broke and all of the medication was spilled. The client is requesting a refill order. The nurse should contact the health care provider about a refill for which medication?
- A. Ampicillin
- B. Ciprofloxacin
- C. Neomycin sulfate
- D. Nystatin
Correct answer: D
Rationale: Nystatin is the appropriate medication for treating oral thrush as it is an antifungal drug specifically used for fungal infections. It targets the fungus responsible for thrush, Candida, effectively. Therefore, the nurse should contact the healthcare provider to request a refill of Nystatin for the client.
5. A client diagnosed with angina has been prescribed nitrate isosorbide dinitrate. Which instruction should the practical nurse reinforce in this client's teaching?
- A. Discontinue the medication if dizziness occurs.
- B. Avoid getting up quickly. Always rise slowly.
- C. Take the medication with or without food.
- D. Increase your intake of potassium-rich foods.
Correct answer: B
Rationale: The correct instruction that the practical nurse should reinforce with a client prescribed nitrate isosorbide dinitrate is to avoid getting up quickly and to rise slowly. Nitrates can cause orthostatic hypotension, a sudden drop in blood pressure when changing positions. By rising slowly, the client can prevent the occurrence of orthostatic hypotension and its associated symptoms. Choices A, C, and D are incorrect because discontinuing the medication without consulting a healthcare provider can be dangerous, taking the medication with or without food does not impact its effectiveness, and increasing potassium intake is not directly related to the use of nitrate isosorbide dinitrate.
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