Nursing Elites

1. A client who is receiving digoxin (Lanoxin) daily has a serum potassium level of 3.0 mEq/L and is complaining of anorexia. A healthcare provider prescribes a digoxin level to rule out digoxin toxicity. A nurse checks the results, knowing that which of the following is the therapeutic serum level (range) for digoxin?

• A. 3 to 5 ng/mL
• B. 0.5 to 2 ng/mL
• C. 1.2 to 2.8 ng/mL
• D. 3.5 to 5.5 ng/mL

Correct answer: B

Rationale: The therapeutic serum level for digoxin ranges from 0.5 to 2 ng/mL. This range is considered optimal for therapeutic effects while minimizing the risk of toxicity. Levels above 2 ng/mL may lead to digoxin toxicity, which can manifest as anorexia among other symptoms. Therefore, the nurse should be vigilant in monitoring the digoxin levels to ensure the client's safety and therapeutic effectiveness of the medication.

2. A client is prescribed atorvastatin (Lipitor) for hyperlipidemia. Which instruction should the nurse include in the teaching plan?

• A. Take the medication in the morning.
• B. Avoid consuming grapefruit juice.
• C. Increase intake of dairy products.
• D. Take the medication with food.

Correct answer: B

Rationale: The correct instruction for the nurse to include in the teaching plan is to advise the client to avoid consuming grapefruit juice. Grapefruit juice can increase the risk of atorvastatin (Lipitor) toxicity by inhibiting its metabolism. Atorvastatin is typically taken in the evening because cholesterol synthesis occurs at night. Increasing dairy intake is not specifically recommended for atorvastatin use, and the medication can be taken with or without food.

3. A client with type 2 diabetes mellitus is prescribed metformin (Glucophage). Which instruction should the nurse include in the teaching plan?

• A. Take the medication with meals.
• B. Monitor for signs of hypoglycemia.
• C. Avoid alcohol while taking this medication.
• D. Take the medication at bedtime.

Correct answer: C

Rationale: Clients taking metformin (Glucophage) should avoid alcohol as it can increase the risk of lactic acidosis. Metformin should be taken with meals to reduce gastrointestinal upset. While hypoglycemia is less common with metformin compared to other diabetes medications, clients should still be aware of its symptoms.

4. A health care provider (HCP) writes a prescription for digoxin (Lanoxin), 0.25 mg daily. The nurse teaches the client about the medication and tells the client that it is important to:

• A. Count the radial and carotid pulses every morning.
• B. Check the blood pressure every morning and evening.
• C. Stop taking the medication if the pulse is higher than 100 beats per minute.
• D. Withhold the medication and call the HCP if the pulse is less than 60 beats per minute.

Correct answer: D

Rationale: When taking digoxin, monitoring the pulse rate is essential due to its potential effects on heart rate. Digoxin can lead to bradycardia, where the pulse rate drops significantly. Withholding the medication and promptly contacting the healthcare provider if the pulse falls below 60 beats per minute is crucial to prevent severe complications and ensure appropriate management. Choices A, B, and C are incorrect because counting radial and carotid pulses, checking blood pressure, or stopping the medication based on a pulse rate higher than 100 beats per minute are not the primary monitoring parameters for a client taking digoxin.

5. A client is prescribed warfarin (Coumadin) for atrial fibrillation. Which statement by the client indicates a need for further teaching?

• A. I will avoid foods high in vitamin K.
• B. I will take the medication at the same time each day.
• C. I will use an electric razor to shave.
• D. I will take aspirin if I have a headache.

Correct answer: D

Rationale: Clients taking warfarin (Coumadin) should avoid aspirin unless prescribed by their healthcare provider, as it can increase the risk of bleeding. The other statements are correct and do not indicate a need for further teaching. Taking aspirin along with warfarin can potentiate the anticoagulant effects of warfarin, leading to an increased risk of bleeding complications.

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