Nursing Elites

1. A nurse is caring for a client in preterm labor who is receiving magnesium sulfate by continuous IV infusion. Which of the following client findings indicates medication toxicity?

• A. Blood glucose of 150 mg/dL
• B. Urine output of 20 mL per hour
• C. Systolic blood pressure of 140 mm Hg
• D. BUN 20 mg/dL

Correct answer: B

Rationale: A urine output of 20 mL per hour is low and indicates renal insufficiency, a sign of magnesium sulfate toxicity. The medication is excreted by the kidneys, so toxicity can occur if renal function declines. Blood glucose of 150 mg/dL is within normal range and not indicative of magnesium sulfate toxicity. A systolic blood pressure of 140 mm Hg is elevated but not specifically related to magnesium sulfate toxicity. A BUN level of 20 mg/dL is also within normal limits and not a sign of medication toxicity.

2. A client is being taught how to use a PCA pump postoperatively. Which statement indicates understanding?

• A. I should wait until the pain is severe before using the PCA pump.
• B. My family can press the button for me when I'm asleep.
• C. I will press the button when I start to feel pain.
• D. I will only press the button once per hour.

Correct answer: C

Rationale: The correct answer is C because the client should press the PCA pump button when they start to feel pain. This approach helps maintain pain control effectively. Choice A is incorrect because waiting for the pain to become severe before using the PCA pump can lead to inadequate pain management. Choice B is incorrect because only the client should operate the PCA pump to ensure the correct dosage is administered. Choice D is incorrect because the client should press the button as needed when experiencing pain, rather than limiting its use to once per hour.

3. A nurse is caring for a client who is taking warfarin. The nurse notes that the client has a new prescription for amoxicillin. Which of the following laboratory tests should the nurse monitor closely?

• A. Serum potassium
• B. Prothrombin time (PT)
• C. Serum sodium
• D. Blood glucose

Correct answer: B

Rationale: The correct answer is B: Prothrombin time (PT). Amoxicillin can potentiate the effects of warfarin, increasing the risk of bleeding. Monitoring the prothrombin time (PT) is crucial in this situation to assess the client's clotting ability. Choices A, C, and D are incorrect because amoxicillin's interaction with warfarin does not directly impact serum potassium, serum sodium, or blood glucose levels.

4. A nurse is teaching a newly licensed nurse about contraindications to ceftriaxone. The nurse should include a severe allergy to which of the following medications as a contraindication to ceftriaxone?

• A. Gentamicin
• B. Clindamycin
• C. Piperacillin
• D. Sulfamethoxazole-trimethoprim

Correct answer: C

Rationale: Ceftriaxone is a cephalosporin, and individuals with a penicillin allergy (such as Piperacillin) may have cross-sensitivity, making it contraindicated. Gentamicin (Choice A) belongs to the aminoglycoside class, not related to cephalosporins. Clindamycin (Choice B) is a lincosamide antibiotic and is not typically associated with cross-allergies to cephalosporins. Sulfamethoxazole-trimethoprim (Choice D) is a sulfonamide antibiotic, also not directly related to ceftriaxone.

5. A client with heart failure and a new prescription for furosemide is receiving teaching from a nurse. Which of the following instructions should the nurse include?

• A. Avoid foods high in magnesium
• B. Take furosemide with food
• C. Eat foods that are rich in potassium
• D. Expect a decrease in blood pressure

Correct answer: C

Rationale: The correct instruction the nurse should include is to advise the client to eat foods that are rich in potassium. Furosemide is a loop diuretic that can cause the loss of potassium, leading to hypokalemia. Eating foods high in potassium can help prevent this electrolyte imbalance. Choice A is incorrect because furosemide does not directly interact with magnesium. Choice B is incorrect because furosemide is usually taken in the morning to prevent nighttime diuresis. Choice D is incorrect because furosemide is a diuretic that typically leads to a decrease in blood pressure rather than an increase.

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