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 has been taking simvastatin for 3 days and calls the nurse at the clinic to report extreme muscle tenderness and pain. Which is the most appropriate action?
- A. Notify the health care provider.
- B. Review the medication with the client.
- C. Advise the client to avoid grapefruit juice.
- D. Remind the client to limit physical activity until evaluated by the health care provider.
Correct answer: A
Rationale: Extreme muscle tenderness and pain in a client taking simvastatin could indicate rhabdomyolysis, a serious condition. Promptly notifying the health care provider is crucial to evaluate and manage this potential medical emergency. Reviewing the medication with the client may not address the urgency of the situation. Advising the client to avoid grapefruit juice is not directly related to the client's current symptoms. Reminding the client to limit physical activity until evaluated by the health care provider is not appropriate as the client's symptoms should be assessed by a professional first.
3. A client with a diagnosis of schizophrenia is prescribed ziprasidone. The nurse should monitor the client for which potential side effect?
- A. QT prolongation
- B. Weight gain
- C. Dry mouth
- D. Increased appetite
Correct answer: A
Rationale: The correct answer is A: QT prolongation. Ziprasidone is known to cause QT prolongation, which can potentially lead to serious cardiac issues. Monitoring the client's ECG is crucial to detect any changes and prevent adverse effects related to QT interval prolongation. Choices B, C, and D are incorrect because weight gain, dry mouth, and increased appetite are not commonly associated with ziprasidone. While weight gain can be a side effect of some antipsychotic medications, it is not a prominent side effect of ziprasidone. Dry mouth and increased appetite are also not typically linked to ziprasidone use.
4. A client with a diagnosis of bipolar disorder is prescribed lamotrigine. The nurse should monitor for which potential adverse effect?
- A. Rash
- B. Tremors
- C. Hair loss
- D. Weight gain
Correct answer: A
Rationale: The correct answer is A: Rash. Lamotrigine can cause a rash, which may indicate a serious adverse effect like Stevens-Johnson syndrome. Monitoring for a rash is crucial in clients taking lamotrigine to promptly address any potential severe reactions.
5. When planning to administer the antiulcer GI agent sucralfate, what instruction should the nurse provide regarding administration?
- A. Administer sucralfate once a day
- B. Assess for secondary candida infection
- C. Monitor electrolyte imbalance
- D. Give sucralfate on an empty stomach
Correct answer: D
Rationale: Sucralfate is most effective when taken on an empty stomach. This allows the medication to form a protective layer over the ulcer, promoting healing and symptom relief. Administering sucralfate with or after meals may reduce its efficacy as it may bind to food instead of coating the ulcer site.
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