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. When a client with hepatic encephalopathy is receiving lactulose, which parameter is essential to monitor for a response to the drug?
- A. Serum hepatic enzymes
- B. Fingerstick glucose
- C. Stool color and character
- D. Serum electrolytes and ammonia
Correct answer: D
Rationale: In hepatic encephalopathy, the goal of lactulose therapy is to reduce blood ammonia levels by promoting its excretion in the stool. Therefore, monitoring serum electrolytes and ammonia levels is crucial to assess the effectiveness of lactulose in lowering ammonia levels and improving the client's condition. Options A, B, and C are incorrect because serum hepatic enzymes, fingerstick glucose, and stool color/character are not directly related to monitoring the response to lactulose therapy in hepatic encephalopathy.
3. An adolescent client with a seizure disorder is prescribed the anticonvulsant medication carbamazepine. The nurse should notify the healthcare provider if the client develops which condition?
- A. Experiences dry mouth.
- B. Experiences dizziness.
- C. Develops a sore throat.
- D. Develops gingival hyperplasia.
Correct answer: C
Rationale: The correct answer is C: 'Develops a sore throat.' When a client on carbamazepine develops flu-like symptoms such as pallor, fatigue, sore throat, and fever, it could indicate blood dyscrasias (aplastic anemia, leukopenia, anemia, thrombocytopenia), which are potential adverse effects of the medication. These symptoms warrant immediate notification of the healthcare provider for further evaluation and management to prevent complications. Choices A, B, and D are incorrect because dry mouth, dizziness, and gingival hyperplasia are not commonly associated with carbamazepine use and do not indicate serious adverse effects that require immediate healthcare provider notification.
4. A client with diabetes mellitus type 2 is prescribed glipizide. What instruction should the nurse include 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 hypoglycemia to the healthcare provider.
Correct answer: A
Rationale: The correct instruction for a client prescribed glipizide, a sulfonylurea used to lower blood sugar levels, is to take the medication with meals. Taking it with meals helps to minimize the risk of hypoglycemia by ensuring a more balanced effect on blood glucose levels throughout the day. It is important for the client to follow this instruction to maintain stable blood sugar levels and reduce the likelihood of experiencing low blood sugar (hypoglycemia) episodes. Choice B is incorrect because there are no specific contraindications between glipizide and alcohol. Choice C is incorrect as glipizide should not be taken on an empty stomach. Choice D is incorrect as while it is important to report signs of hypoglycemia, the primary focus should be on preventing hypoglycemia by taking the medication with meals.
5. A client with hypertension is prescribed lisinopril. The nurse should monitor the client for which potential side effect?
- A. Cough
- B. Dizziness
- C. Hyperkalemia
- D. Hyponatremia
Correct answer: A
Rationale: The correct answer is A: Cough. Lisinopril is known to cause a persistent dry cough as a side effect. It is essential for the nurse to monitor the client for this adverse reaction as it may lead to discontinuation of the medication. Dizziness, hyperkalemia, and hyponatremia are not typically associated with lisinopril use. Dizziness is more commonly seen with antihypertensives that cause orthostatic hypotension. Hyperkalemia and hyponatremia are not usually linked to lisinopril use.
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