A nurse is administering metformin to a client with type 2 diabetes. Which of the following adverse effects should the nurse monitor for in this client?

A. Diarrhea

B. Hyperglycemia

C. Hypoglycemia

D. Lactic acidosis

Correct Answer: D
Rationale: The correct answer is D, Lactic acidosis. Lactic acidosis is a rare but serious adverse effect of metformin use. Metformin is not known to cause hyperglycemia or hypoglycemia. Diarrhea is a common gastrointestinal side effect of metformin but is not as serious as lactic acidosis, which requires immediate medical attention.

A nurse is caring for a client with diabetes and a new prescription for 14 units of regular insulin and 28 units of NPH insulin subcutaneously at breakfast daily. What is the total number of units of insulin that the nurse should prepare in the insulin syringe?

• A. 14 units
• B. 28 units
• C. 32 units
• D. 42 units

Correct Answer: D
Rationale: The nurse should combine both orders of insulin in the same syringe. To prepare the correct dose, the nurse should withdraw the regular insulin first (14 units) and then the NPH insulin (28 units), totaling 42 units. This combination ensures the client receives the prescribed doses of both types of insulin. Choices A, B, and C are incorrect because the nurse needs to prepare and administer both types of insulin as prescribed, resulting in a total of 42 units in the syringe.

A nurse is reviewing the medication class benzodiazepines. The nurse would use caution when administering benzodiazepines to which of the below clients?

• A. A client with glaucoma
• B. A client with renal failure
• C. A client with hypertension
• D. A client with insomnia

Correct Answer: A
Rationale: The correct answer is A. Benzodiazepines should be used cautiously in clients with glaucoma because these medications can increase intraocular pressure. Choices B, C, and D are incorrect because renal failure, hypertension, and insomnia are not contraindications for administering benzodiazepines.

A client with an artificial heart valve is prescribed warfarin therapy. Which of the following laboratory values should the nurse monitor to assess the therapeutic effect of warfarin?

• A. Hemoglobin (Hgb)
• B. Prothrombin time (PT)
• C. Bleeding time
• D. Activated partial thromboplastin time (aPTT)

Correct Answer: B
Rationale: The correct answer is B: Prothrombin time (PT). Warfarin is an anticoagulant medication that works by inhibiting the clotting factors dependent on vitamin K, such as factors II, VII, IX, and X. The prothrombin time (PT) measures the extrinsic pathway and is used to monitor the therapeutic effects of warfarin therapy. Monitoring PT helps assess the time it takes for the blood to clot, ensuring that the anticoagulant effect is within the desired range. Choices A, C, and D are incorrect because hemoglobin (Hgb) measures the amount of hemoglobin in the blood, bleeding time assesses the time it takes for bleeding to stop, and activated partial thromboplastin time (aPTT) is used to monitor heparin therapy, not warfarin therapy.

A nurse is providing care to a client with staphylococcus epidermidis who is prescribed vancomycin. Identify the adverse effect associated with the antibiotic therapy.

• A. Hepatotoxicity
• B. Constipation
• C. Infusion reaction
• D. Immunosuppression

Correct Answer: C
Rationale: The correct answer is C: Infusion reaction. Vancomycin can cause infusion reactions like 'Red Man Syndrome,' which involves rashes, flushing, tachycardia, and hypotension. Hepatotoxicity (choice A) is not a common adverse effect of vancomycin. Constipation (choice B) is not typically associated with vancomycin use. Immunosuppression (choice D) is not a direct adverse effect of vancomycin therapy.