HESI RN
HESI Pharmacology Practice Exam
1. The healthcare provider should anticipate that the most likely medication to be prescribed prophylactically for a child with spina bifida (myelomeningocele) who has a neurogenic bladder would be:
- A. Prednisone
- B. Sulfisoxazole
- C. Furosemide (Lasix)
- D. Intravenous immune globulin (IVIG)
Correct answer: B
Rationale: Children with spina bifida, especially those with a neurogenic bladder, are at an increased risk of urinary tract infections. Sulfisoxazole, an antibiotic, is commonly prescribed prophylactically to prevent UTIs in this population. Prednisone (Choice A) is a corticosteroid and is not typically used for prophylaxis in this scenario. Furosemide (Lasix) (Choice C) is a diuretic used to treat fluid retention and hypertension, not for preventing UTIs. Intravenous immune globulin (IVIG) (Choice D) is used to boost the immune system, not for UTI prophylaxis in this case.
2. Mafenide acetate (Sulfamylon) is prescribed for a client with a burn injury. When applying the medication, the client complains of local discomfort and burning. Which of the following is the most appropriate nursing action?
- A. Notifying the registered nurse
- B. Discontinuing the medication
- C. Informing the client that this is normal
- D. Applying a thinner film than prescribed to the burn site
Correct answer: C
Rationale: The correct action is to inform the client that local discomfort and burning are normal reactions to Mafenide acetate. This medication is used to treat burns by reducing bacteria in avascular tissues. Discontinuing the medication or applying a thinner film than prescribed is not necessary or recommended in this situation.
3. A client has been started on long-term therapy with rifampin (Rifadin). A nurse teaches the client that the medication:
- A. Should always be taken with food or antacids
- B. Should be double-dosed if one dose is forgotten
- C. Causes orange discoloration of sweat, tears, urine, and feces
- D. May not be discontinued independently if symptoms are gone in 3 months
Correct answer: C
Rationale: Rifampin causes orange-red discoloration of body secretions, including sweat, tears, urine, and feces. It can also permanently stain soft contact lenses. It is essential to take rifampin exactly as directed and not discontinue it without consulting the healthcare provider.
4. The healthcare provider prescribes exenatide (Byetta) for a client with type 1 diabetes mellitus who takes insulin. What is the appropriate intervention for the nurse?
- A. Administer the medication within 60 minutes before the morning and evening meal.
- B. Withhold the medication and question the prescription with the healthcare provider.
- C. Monitor the client for gastrointestinal side effects after administration of the medication.
- D. Withdraw the insulin from the Penlet into an insulin syringe to prepare for administration.
Correct answer: B
Rationale: Exenatide (Byetta) is specifically indicated for the treatment of type 2 diabetes mellitus and is not recommended for clients with type 1 diabetes mellitus who are taking insulin. Choice A is incorrect because exenatide should not be administered to a client with type 1 diabetes mellitus who takes insulin. Choice C is not the most appropriate initial action when the prescription is not suitable for the client. Choice D is unrelated to the administration of exenatide. Therefore, the appropriate intervention for the nurse is to withhold the medication and question the prescription with the healthcare provider to ensure the safety and appropriateness of the treatment plan for the client.
5. A client with angina pectoris is experiencing chest pain that radiates down the left arm. The nurse administers a sublingual nitroglycerin tablet to the client. The client's pain is unrelieved, and the nurse determines that the client needs another nitroglycerin tablet. Which of the following vital signs is most important for the nurse to check before administering the medication?
- A. Temperature
- B. Respirations
- C. Blood pressure
- D. Radial pulse rate
Correct answer: C
Rationale: The correct answer is checking the client's blood pressure (C) before administering another nitroglycerin tablet. Nitroglycerin can cause hypotension, and monitoring blood pressure is crucial to prevent a sudden drop in blood pressure, especially when giving another dose of nitroglycerin.
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