Nursing Elites

1. The healthcare provider prescribes an IV infusion of isoproterenol in D5W at 300 mcg/hour. How many ml/hour should the nurse set the pump to?

• A. 100 ml/hour
• B. 75 ml/hour
• C. 60 ml/hour
• D. 125 ml/hour

Correct answer: B

Rationale: To calculate the correct infusion rate, convert 300 mcg/hour to mg/hour (300 mcg = 0.3 mg). Since the IV solution is 1 mg in 250 ml, the rate is calculated as 0.3 mg/hour = 75 ml/hour. Therefore, the nurse should set the pump to 75 ml/hour. Choice A (100 ml/hour) is incorrect as it does not reflect the accurate calculation. Choice C (60 ml/hour) is incorrect as it is lower than the correct rate. Choice D (125 ml/hour) is incorrect as it is higher than the correct rate.

2. Which medication should the nurse withhold if the client's serum potassium level is 6.2 mEq/L?

• A. Losartan
• B. Spironolactone
• C. Metoprolol
• D. Furosemide

Correct answer: B

Rationale: The correct answer is B: Spironolactone. Spironolactone is a potassium-sparing diuretic that can lead to hyperkalemia. With potassium levels already elevated at 6.2 mEq/L, withholding Spironolactone is essential to prevent further increase in potassium levels, which could result in dangerous cardiac arrhythmias. Losartan (Choice A) is an angiotensin receptor blocker and does not directly affect potassium levels. Metoprolol (Choice C) is a beta-blocker and also does not impact potassium levels significantly. Furosemide (Choice D) is a loop diuretic that can actually lower potassium levels, so it would not be the medication to withhold in this case.

3. The client is being taught about precautions with Coumadin therapy. The client should be instructed to avoid which over-the-counter medication?

• A. Non-steroidal anti-inflammatory drugs
• B. Cough medicines containing guaifenesin
• C. Histamine blockers
• D. Laxatives containing magnesium salts

Correct answer: A

Rationale: The correct answer is A: Non-steroidal anti-inflammatory drugs (NSAIDs). NSAIDs can increase the risk of bleeding in clients taking Coumadin, which is an anticoagulant medication. Avoiding NSAIDs helps prevent potentially dangerous interactions with Coumadin. Choices B, C, and D are incorrect. Cough medicines with guaifenesin, histamine blockers, and laxatives containing magnesium salts do not typically have significant interactions with Coumadin therapy. Therefore, they are not the over-the-counter medications that the client needs to avoid while on Coumadin.

4. A client with chronic kidney disease is prescribed a low-sodium diet. What is the nurse's priority teaching?

• A. Choose fresh fruits and vegetables.
• B. Restrict fluid intake to 1500 mL per day.
• C. Limit sodium intake to 2 grams per day.
• D. Increase potassium intake to prevent hypokalemia.

Correct answer: C

Rationale: The correct answer is C: 'Limit sodium intake to 2 grams per day.' For a client with chronic kidney disease, limiting sodium intake is crucial because it helps prevent fluid retention and reduces the workload on the kidneys. Choice A, 'Choose fresh fruits and vegetables,' is generally a healthy dietary recommendation but not the priority when focusing on a low-sodium diet. Choice B, 'Restrict fluid intake to 1500 mL per day,' is important but secondary to limiting sodium intake. Choice D, 'Increase potassium intake to prevent hypokalemia,' is not the priority teaching for a client with chronic kidney disease on a low-sodium diet.

5. A client with deep vein thrombosis (DVT) is prescribed heparin therapy. What laboratory value should the nurse monitor?

• A. Monitor the client’s liver function tests.
• B. Monitor the client’s prothrombin time (PT).
• C. Monitor the client’s partial thromboplastin time (PTT).
• D. Monitor the client’s red blood cell count.

Correct answer: C

Rationale: The correct answer is C: Monitor the client’s partial thromboplastin time (PTT). During heparin therapy for DVT, it is essential to monitor the PTT to assess the effectiveness of the medication in preventing clot formation. Monitoring the PTT helps ensure that the client is within the therapeutic range for anticoagulation. Choices A, B, and D are incorrect because liver function tests, prothrombin time (PT), and red blood cell count are not specifically monitored to assess the effectiveness of heparin therapy in preventing clot formation.

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