Nursing Elites

1. A nurse is caring for a client who is prescribed warfarin. Which of the following laboratory tests should the nurse review to evaluate the therapeutic effect of this medication?

• A. aPTT
• B. INR
• C. Serum glucose
• D. Bilirubin

Correct answer: B

Rationale: The correct answer is B: INR. The International Normalized Ratio (INR) is the most reliable test for evaluating the therapeutic effects of warfarin therapy. INR measures the clotting ability of the blood and helps determine if the dosage of warfarin is within the therapeutic range. Choice A, aPTT, is not typically used to monitor the effects of warfarin. Choice C, Serum glucose, and choice D, Bilirubin, are not relevant to monitoring the therapeutic effect of warfarin.

2. 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.

3. A nurse is reviewing a client's medication regimen. Which of the following medications places the client at increased risk for digoxin toxicity?

• A. Calcium channel blockers
• B. Potassium-sparing diuretics
• C. Beta blockers
• D. Loop diuretics

Correct answer: D

Rationale: The correct answer is D, Loop diuretics. Loop diuretics can lead to hypokalemia, which increases the risk for digoxin toxicity. Loop diuretics cause potassium loss, and hypokalemia can potentiate the toxic effects of digoxin. Choices A, B, and C are incorrect because calcium channel blockers, potassium-sparing diuretics, and beta blockers do not directly increase the risk of digoxin toxicity.

4. A nurse is preparing to administer potassium chloride IV to a client. Which of the following actions should the nurse take to prevent complications?

• A. Administer the medication by IV bolus over 2 minutes
• B. Infuse the medication slowly using an IV pump
• C. Add the medication to an IV solution of D5W
• D. Dilute the medication in 5 mL of sterile water

Correct answer: B

Rationale: The correct action to prevent complications when administering potassium chloride IV is to infuse the medication slowly using an IV pump. Rapid administration of potassium chloride can lead to complications such as hyperkalemia and cardiac arrest. Options A, C, and D are incorrect as they do not promote the safe administration of potassium chloride. Administering the medication by IV bolus over 2 minutes is too rapid and can cause adverse effects. Adding the medication to an IV solution of D5W or diluting it in sterile water may not control the rate of administration, increasing the risk of complications.

5. 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.

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