A nurse is providing teaching to a newly licensed nurse about caring for a client who has a prescription for gemfibrozil. The nurse should instruct the newly licensed nurse to monitor which of the following laboratory tests?

A. Platelet count

B. Electrolyte levels

C. Thyroid function

D. Liver function

Correct Answer: D
Rationale: The correct answer is D: Liver function. Gemfibrozil can lead to hepatotoxicity, making it crucial to monitor liver function tests. Monitoring platelet count (choice A) is not specifically indicated for gemfibrozil. Electrolyte levels (choice B) and thyroid function (choice C) are not directly affected by gemfibrozil, so they are not the primary laboratory tests to monitor in this case.

A nurse is providing teaching to a client who has a new prescription for hydrochlorothiazide 50 mg PO daily to treat hypertension. Which of the following instructions should the nurse include in the teaching?

• A. Take hydrochlorothiazide as needed for edema.
• B. Check your weight once weekly.
• C. Take the hydrochlorothiazide on an empty stomach.
• D. Take the hydrochlorothiazide in the morning.

Correct Answer: D
Rationale: The correct answer is to take hydrochlorothiazide in the morning. This medication is usually advised to be taken in the morning to prevent nocturia, which is excessive urination at night. Option A is incorrect because hydrochlorothiazide should be taken daily as prescribed, not as needed for edema. Option B is incorrect as monitoring weight weekly may not be specifically related to hydrochlorothiazide therapy. Option C is incorrect as hydrochlorothiazide does not need to be taken on an empty stomach.

A client with gout is prescribed allopurinol. The nurse should instruct the client to discontinue taking the medication for which of the following adverse effects?

• A. Nausea
• B. Metallic taste
• C. Fever
• D. Drowsiness

Correct Answer: C
Rationale: The correct answer is C: Fever. Fever can indicate a serious hypersensitivity reaction to allopurinol, known as allopurinol hypersensitivity syndrome, which can be severe and even life-threatening. Nausea and drowsiness are common side effects of allopurinol but not necessarily indications to discontinue the medication. Metallic taste is not typically associated with allopurinol use. Therefore, the nurse should emphasize to the client the importance of reporting any signs of fever promptly for further evaluation and management.

A nurse is preparing to administer prochlorperazine 2.5 mg IV. Available is prochlorperazine injection 5 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth)

• A. 0.5 mL
• B. 0.005 mL
• C. 0.05 mL
• D. 5 mL

Correct Answer: A
Rationale: To calculate the mL needed, set up a proportion: 5 mg / 1 mL = 2.5 mg / X mL. Cross multiply to find X: 5 * X = 2.5 * 1, X = 2.5 / 5 = 0.5 mL. Therefore, the nurse should administer 0.5 mL. Choice B, 0.005 mL, is incorrect as it doesn't match the calculated result. Choice C, 0.05 mL, is incorrect as it is ten times the correct value. Choice D, 5 mL, is incorrect as it represents the total volume of the entire vial, not the amount needed for the specific dose.

A nurse is reviewing the laboratory values for a client who is receiving a continuous IV heparin infusion and has an aPTT of 90 seconds. Which of the following actions should the nurse prepare to take?

• A. Administer vitamin K
• B. Reduce the infusion rate
• C. Give the client a low-dose aspirin
• D. Request an INR

Correct Answer: B
Rationale: An aPTT of 90 seconds is elevated, indicating a risk of bleeding due to excessive anticoagulation. The appropriate action is to reduce the infusion rate of heparin to prevent further complications. Administering vitamin K is not indicated for an elevated aPTT due to heparin therapy. Giving the client a low-dose aspirin can further increase the risk of bleeding when combined with heparin. Requesting an INR is not necessary for monitoring heparin therapy; aPTT is the more specific test for assessing heparin's therapeutic effect. Therefore, the correct action for the nurse to prepare to take is to reduce the infusion rate of heparin.