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. The healthcare provider is assessing the effectiveness of the drug amiodarone. Which client statement best indicates that the drug has been effective?
- A. I have not had as many spells of angina.
- B. I have not had as much swelling in my ankles lately.
- C. My doctor told me my cholesterol levels were improving with each visit.
- D. I do not notice as many irregular heartbeats as before I started taking this medication.
Correct answer: D
Rationale: The correct answer is option D. The effectiveness of amiodarone is best assessed by a reduction in irregular heartbeats since it is primarily used to treat ventricular dysrhythmias. This drug's main purpose is to control irregular heart rhythms, so a decrease in irregular heartbeats indicates its effectiveness. Options A, B, and C are incorrect because amiodarone is not primarily used to address angina, ankle swelling, or cholesterol levels, so improvements in these areas do not directly reflect the drug's effectiveness.
3. A client with amyotrophic lateral sclerosis (ALS) has been taking riluzole for two weeks. The nurse notes that the client remains weak with observable muscle atrophy. What action should the nurse take?
- A. Explain that the medication may take time to show improvement in symptoms
- B. Withhold the medication and notify the healthcare provider
- C. Advise the client to undergo liver function tests
- D. Document the assessment findings in the electronic health record
Correct answer: D
Rationale: In this scenario, the nurse's priority is to document the assessment findings in the electronic health record. This action is crucial for maintaining an accurate record of the client's health status and can provide valuable information for the healthcare team. While it is important to monitor the client's response to riluzole, explaining that the medication may take time to show improvement (Choice A) would be more appropriate if the client was expecting immediate results. Withholding the medication and notifying the healthcare provider (Choice B) should not be the initial action without further assessment or guidance. Advising the client to undergo liver function tests (Choice C) is not directly related to the current situation of weakness and muscle atrophy.
4. A client taking long-term steroids also has ranitidine prescribed. The nurse provides which explanation as to why these drugs are given together?
- A. Ranitidine reduces the risk of ulcers associated with steroids.
- B. Ranitidine decreases the risk of infection associated with steroids.
- C. Ranitidine decreases blood sugar elevations associated with steroids.
- D. Ranitidine reduces sodium retention associated with steroid usage.
Correct answer: A
Rationale: The correct answer is A. Ranitidine is prescribed with long-term steroids to reduce the risk of ulcers associated with steroid therapy. Although steroids can increase the risk of ulcers due to their effect on the gastrointestinal system, ranitidine works by reducing stomach acid production, thus helping to prevent ulcer formation. Choices B, C, and D are incorrect as ranitidine is not given to decrease the risk of infection, reduce blood sugar elevations, or reduce sodium retention associated with steroid usage.
5. 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.
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