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 is prescribed clonidine 0.1 mg/24 hours via a transdermal patch. Which client outcome would indicate that the medication is effective?
- A. No complaints of recent episodes of angina
- B. Change in peripheral edema from +3 to +1
- C. No complaints of new onset of nausea or vomiting
- D. Blood pressure changes from 180/120 to 140/70 mm Hg
Correct answer: D
Rationale: Clonidine is an antihypertensive agent that works centrally to reduce blood pressure. A significant decrease in blood pressure, such as changing from 180/120 to 140/70 mm Hg, indicates that the medication is effectively managing hypertension. Monitoring blood pressure levels is crucial in assessing the response to clonidine therapy. Choices A, B, and C are incorrect as they do not directly relate to the therapeutic effect of clonidine in managing hypertension, which is the primary goal of the medication in this scenario.
3. A practical nurse is reviewing the medication administration record for a client prescribed prednisone. What potential side effect should the nurse monitor for?
- A. Hypoglycemia
- B. Weight loss
- C. Hypertension
- D. Diarrhea
Correct answer: C
Rationale: Prednisone, a corticosteroid, can cause side effects such as hypertension, fluid retention, and weight gain. Hypertension is a common side effect of prednisone due to its impact on sodium and fluid retention in the body. Monitoring blood pressure is crucial to detect and manage hypertension in clients taking prednisone. Choices A, B, and D are incorrect. While prednisone can indirectly affect blood glucose levels, hypoglycemia is not a common side effect. Weight gain, not weight loss, is more prevalent with prednisone use. Diarrhea is not a typical side effect associated with prednisone.
4. A client with an exacerbation of asthma is prescribed albuterol. The nurse should assess the client for which common side effect of this medication?
- A. Tremors
- B. Nausea and vomiting
- C. Insomnia
- D. Dry mouth
Correct answer: A
Rationale: The correct answer is A: Tremors. Albuterol, a beta-agonist medication commonly used to treat asthma exacerbations, can lead to tremors as a side effect. Tremors result from the stimulation of beta-2 receptors in muscles, particularly in the hands. Nausea and vomiting (Choice B) are generally not common side effects of albuterol. Insomnia (Choice C) is less likely to occur with albuterol, as it is a stimulant and can cause alertness rather than sleep disturbances. Dry mouth (Choice D) is not a typical side effect associated with albuterol use.
5. A client is prescribed diazepam for muscle spasms. What instruction should the nurse include in the client's teaching plan?
- A. Avoid drinking alcohol
- B. Take with food to avoid gastrointestinal upset
- C. Increase fluid intake
- D. Take medication with grapefruit juice
Correct answer: A
Rationale: The correct instruction for a client prescribed diazepam for muscle spasms is to avoid drinking alcohol. Diazepam can cause drowsiness and enhance the effects of alcohol, leading to increased sedation and impaired cognitive function. Clients should be advised to avoid alcohol consumption while taking diazepam to prevent these adverse effects and ensure their safety.
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