HESI LPN
Pharmacology HESI Practice
1. A client who received a renal transplant three months ago is readmitted to the acute care unit with signs of graft rejection. While taking the client's history, the nurse determines the client has been self-administering St. John's wort, an herbal preparation, on the advice of a friend. What information is most significant about this finding?
- A. Wort can decrease plasma concentration of Cyclospora
- B. Wort can decrease plasma concentration of Tacrolimus
- C. Wort can decrease plasma concentration of Cyclosporine
- D. Wort can decrease plasma concentration of Mycophenolate
Correct answer: C
Rationale: The most significant information about the client self-administering St. John's wort, an herbal preparation, is that it can decrease the plasma concentration of Cyclosporine. St. John's wort is known to reduce the efficacy of Cyclosporine, which is a common immunosuppressant drug used to prevent transplant rejection. Choices A, B, and D are incorrect because St. John's wort does not affect the plasma concentration of Cyclospora, Tacrolimus, or Mycophenolate.
2. What information should the practical nurse provide to a female client who started taking an oral sulfonamide for a urinary tract infection the previous day and reports slight anorexia, while also experiencing urinary frequency?
- A. Take the medication with an antacid instead of cranberry juice to reduce the anorexia.
- B. Continue to take the medication with a sip of cranberry juice, restricting fluids until the frequency is controlled.
- C. Continue to drink cranberry juice, but take the medicine on an empty stomach with a full glass of water.
- D. Take the medication with a spoonful of ice cream or applesauce and avoid drinking cranberry juice.
Correct answer: C
Rationale: The practical nurse should advise the client to take sulfonamides with a full glass of water to help prevent crystalluria. It is essential to take the medication on an empty stomach, ideally 1 hour before eating or 2 hours after eating to maximize its absorption and effectiveness. Continuing to drink cranberry juice is beneficial, but it is important to take the medicine separately to enhance its therapeutic action.
3. A client with a history of atrial fibrillation is prescribed apixaban. The nurse should monitor for which potential side effect?
- A. Bleeding
- B. Weight gain
- C. Headache
- D. Nausea
Correct answer: A
Rationale: The correct answer is A: Bleeding. Apixaban is an anticoagulant medication that works by decreasing the blood's ability to clot. One of the significant side effects of apixaban is an increased risk of bleeding. Therefore, the nurse should monitor the client for signs of bleeding, such as easy bruising, prolonged bleeding from cuts, blood in the urine or stool, or unusual bleeding or bruising. Monitoring for these signs is crucial to prevent or manage any potential complications associated with the medication. Choices B, C, and D are incorrect because weight gain, headache, and nausea are not typically associated with apixaban use. Therefore, the nurse should primarily focus on monitoring for signs of bleeding in a client prescribed apixaban.
4. A client with a diagnosis of generalized anxiety disorder is prescribed fluvoxamine. The nurse should instruct the client that this medication may have which potential side effect?
- A. Drowsiness
- B. Dry mouth
- C. Insomnia
- D. Headache
Correct answer: A
Rationale: The correct answer is A: Drowsiness. Fluvoxamine is known to cause drowsiness as a potential side effect. Patients should be advised to avoid activities like driving that require alertness until they understand how the medication affects them. Dry mouth, insomnia, and headache are potential side effects of other medications used for anxiety disorders but are not typically associated with fluvoxamine.
5. A client is prescribed verapamil for hypertension. The nurse should monitor the client for which common adverse effect?
- A. Constipation
- B. Headache
- C. Muscle cramping
- D. Fatigue
Correct answer: A
Rationale: Verapamil, a calcium channel blocker commonly used for hypertension, is known to cause constipation as a frequent adverse effect. This occurs due to its effects on smooth muscle relaxation in the gastrointestinal tract, leading to decreased motility. Headache, muscle cramping, and fatigue are not typically associated with verapamil use and are less common side effects. Therefore, the nurse should closely monitor the client for symptoms of constipation when administering verapamil.
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