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 chronic kidney disease is prescribed darbepoetin alfa. The nurse should monitor for which potential side effect?
- A. Hypertension
- B. Hypotension
- C. Hyperkalemia
- D. Hyperglycemia
Correct answer: A
Rationale: The correct answer is A: Hypertension. Darbepoetin alfa, used to treat anemia in chronic kidney disease, can lead to hypertension as a side effect. This medication stimulates red blood cell production, which can increase blood pressure. Monitoring blood pressure regularly is crucial to detect and manage this potential adverse effect. Choices B, C, and D are incorrect because hypotension, hyperkalemia, and hyperglycemia are not commonly associated with darbepoetin alfa therapy in chronic kidney disease.
3. The healthcare professional is caring for a patient with a new order for an oral laxative. Which is a contraindication in administering an oral laxative?
- A. Cardiac problems
- B. Abdominal pain of unknown origin
- C. Several hemorrhoids
- D. Chronic constipation
Correct answer: B
Rationale: Administering an oral laxative to a patient with abdominal pain of unknown origin is contraindicated because it could be a sign of a more serious underlying condition that needs immediate medical evaluation. Giving a laxative in such a situation without proper diagnosis could potentially worsen the patient's condition or delay appropriate treatment. Choice A (Cardiac problems) is not a contraindication for an oral laxative unless the patient has a specific cardiac condition that interacts with the laxative. Choice C (Several hemorrhoids) and Choice D (Chronic constipation) are not contraindications for administering an oral laxative.
4. A client with hypertension is prescribed atenolol. The nurse should monitor the client for which potential side effect?
- A. Bradycardia
- B. Tachycardia
- C. Hypotension
- D. Hyperglycemia
Correct answer: A
Rationale: When a client is prescribed atenolol, a beta-blocker medication used to treat hypertension, the nurse should monitor for bradycardia as a potential side effect. Atenolol works by slowing the heart rate, and one common adverse effect is bradycardia, which is a slower than normal heart rate. Monitoring the client's heart rate is essential to detect and manage this potential side effect promptly. Choices B, C, and D are incorrect because atenolol typically does not cause tachycardia, hypotension, or hyperglycemia as primary side effects. Instead, bradycardia is a common concern due to the drug's mechanism of action in reducing heart rate.
5. A client with a diagnosis of generalized anxiety disorder is prescribed lorazepam. The client should be informed that this medication may have which potential side effect?
- A. Drowsiness
- B. Dry mouth
- C. Nausea
- D. Headache
Correct answer: A
Rationale: The correct answer is A: Drowsiness. Lorazepam, a medication commonly used to treat anxiety disorders, can lead to drowsiness as a common side effect. It is important for clients to be aware of this potential effect, and they should be advised to avoid activities like driving until they understand how the medication affects them. Dry mouth, nausea, and headache are possible side effects of other medications but are less commonly associated with lorazepam.
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