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 a diagnosis of generalized anxiety disorder is prescribed fluvoxamine. The nurse should instruct the client that this medication may have which potential side effect?
- A. Drowsiness
- B. Dry mouth
- C. Insomnia
- D. Headache
Correct answer: A
Rationale: The correct answer is A: Drowsiness. Fluvoxamine is known to cause drowsiness as a potential side effect. Patients should be advised to avoid activities like driving that require alertness until they understand how the medication affects them. Dry mouth, insomnia, and headache are potential side effects of other medications used for anxiety disorders but are not typically associated with fluvoxamine.
3. 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.
4. A patient with irritable bowel syndrome starts a new prescription for dicyclomine, an anticholinergic medication. The client reports the onset of sensitivity to light and a dry mouth. How should the nurse respond?
- A. Determine if the medication is being taken correctly
- B. Provide instructions on managing these side effects
- C. Schedule an appointment for evaluation by the healthcare provider
- D. Advise stopping the medication until the unpleasant side effects wear off
Correct answer: B
Rationale: The correct response is to provide instructions on managing these side effects. Sensitivity to light and dry mouth are common side effects of anticholinergic medications like dicyclomine. It is essential for the nurse to educate the patient on strategies to cope with these side effects, such as staying hydrated to address dry mouth and wearing sunglasses to reduce sensitivity to light. Option A is not the priority as the side effects are expected with this medication and do not necessarily indicate incorrect use. Option C is not immediately necessary as the side effects are common and can be managed without a healthcare provider evaluation. Option D is not recommended unless advised by the healthcare provider as abruptly stopping the medication can lead to worsening symptoms or withdrawal effects.
5. A client is prescribed ondansetron for nausea and vomiting. The nurse should monitor the client for which potential adverse effect?
- A. Headache
- B. Diarrhea
- C. Constipation
- D. Increased appetite
Correct answer: C
Rationale: The correct answer is C: Constipation. Ondansetron is known to cause constipation as a potential adverse effect. It is important for the nurse to monitor the client for constipation while on this medication to address any issues promptly. Choices A, B, and D are incorrect because headache, diarrhea, and increased appetite are not common adverse effects associated with ondansetron.
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