HESI LPN
HESI Practice Test Pharmacology
1. Phenazopyridine is commonly prescribed for clients with urinary tract infections (UTI). Which statement by the practical nurse describes the purpose for the administration of phenazopyridine?
- A. To alter the pH level of the urine
- B. To reduce the frequency of bladder spasms
- C. To alleviate the painful symptoms caused by the UTI
- D. To prevent bacterial replication and resistance development
Correct answer: C
Rationale: The correct answer is C. Phenazopyridine, a urinary analgesic, is utilized to alleviate the pain associated with urinary tract infections (UTIs) like burning, pain, urgency, and frequent voiding. The administration of phenazopyridine can cause the urine to turn a bright red-orange color. It is recommended to take this medication with food to reduce gastric irritation. Phenazopyridine should only be used for a maximum of 2 days when taken alongside an antibacterial agent, which is typically prescribed for about 2 weeks to treat the underlying infection.
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 diabetes mellitus type 2 is prescribed sitagliptin. The nurse should include which instruction in the client's teaching plan?
- A. Take this medication with meals.
- B. Avoid alcohol while taking this medication.
- C. Take this medication on an empty stomach.
- D. Report any signs of pancreatitis to the healthcare provider.
Correct answer: D
Rationale: The correct instruction to include in the teaching plan for a client prescribed sitagliptin is to report any signs of pancreatitis to the healthcare provider. Sitagliptin is generally taken with meals to reduce gastrointestinal side effects. Therefore, choice A, 'Take this medication with meals,' is incorrect. Sitagliptin does not have specific interactions with alcohol, so there is no need to advise the client to avoid alcohol, making choice B incorrect. Taking sitagliptin on an empty stomach is not recommended, so choice C is also incorrect. Pancreatitis is a rare but serious side effect of sitagliptin, so it is crucial for the client to report any signs or symptoms to their healthcare provider promptly.
4. A client with a diagnosis of bipolar disorder is prescribed carbamazepine. The nurse should monitor for which potential adverse effect?
- A. Agranulocytosis
- B. Hair loss
- C. Liver toxicity
- D. Weight gain
Correct answer: A
Rationale: Carbamazepine is associated with the potential adverse effect of agranulocytosis, a serious condition characterized by a low white blood cell count. Monitoring white blood cell counts regularly is crucial to detect this adverse effect early and prevent complications.
5. Twenty-four hours after starting to take oral penicillin for strep throat, a client calls the nurse to report the onset of a rash on the chest. What action should the nurse implement?
- A. Instruct the client to discontinue the penicillin immediately
- B. Instruct the client regarding the use of topical analgesic cream PRN
- C. Question the client about any other related symptoms
- D. Reinforce the need to take all doses of the penicillin
Correct answer: A
Rationale: In this scenario, the client has developed a rash after starting oral penicillin, which can indicate an allergic reaction. It is crucial for the nurse to instruct the client to discontinue the penicillin immediately. Continuing the medication can potentially lead to severe allergic reactions. Instructing about topical analgesic cream or questioning about other related symptoms may delay appropriate action in case of a severe allergic reaction. Reinforcing the need to complete all doses is not appropriate when an allergic reaction is suspected, as safety takes precedence over completing the antibiotic course.
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