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 nitroglycerin (Nitro-Dur) transdermal patch for angina. Which instruction should the nurse include in the client's teaching plan?

• A. Apply the patch to a hairless area of skin.
• B. Leave the patch on for 24 hours.
• C. Apply the patch at the same time each day.
• D. You can keep the patch on while taking a shower.

Correct answer: C

Rationale: The correct instruction for the nurse to include in the client's teaching plan is to apply the nitroglycerin (Nitro-Dur) transdermal patch at the same time each day. This consistency helps maintain steady blood levels of the medication. While it is important to apply the patch to a hairless area of the skin for proper absorption, it does not necessarily have to be left on for 24 hours; typically, it is worn for 12-14 hours to allow for a nitrate-free period and reduce tolerance. Additionally, the patch can generally be kept on while taking a shower, as water exposure does not typically affect its efficacy.

3. A healthcare provider has written a prescription for ranitidine (Zantac), once daily. When should the nurse schedule the medication?

• A. At bedtime
• B. After lunch
• C. With supper
• D. Before breakfast

Correct answer: A

Rationale: The correct answer is A: At bedtime. Ranitidine should be scheduled at bedtime because it provides a prolonged effect and offers the greatest protection of the gastric mucosa. Administering it at this time helps in managing nocturnal acid breakthrough and providing relief during the night.

4. A client is prescribed phenytoin (Dilantin) for seizure control. Which statement by the client indicates an understanding of the medication?

• A. I should brush and floss my teeth regularly.
• B. I should take the medication with antacids.
• C. I can stop taking the medication once my seizures are controlled.
• D. I should avoid drinking milk while taking this medication.

Correct answer: A

Rationale: The correct statement is 'I should brush and floss my teeth regularly.' Phenytoin (Dilantin) can cause gingival hyperplasia, so maintaining good oral hygiene is essential. Taking the medication with antacids can affect its absorption, so it should not be done. It is crucial not to stop taking the medication abruptly, even if seizures are controlled. There is no specific requirement to avoid milk while taking phenytoin (Dilantin).

5. Before administering furosemide (Lasix) to a client with heart failure, what is the most important laboratory test result for the nurse to check?

• A. Potassium level
• B. Creatinine level
• C. Cholesterol level
• D. Blood urea nitrogen

Correct answer: A

Rationale: The correct answer is to check the potassium level before administering furosemide (Lasix) to a client with heart failure. Furosemide is a loop diuretic that can cause hypokalemia, so it is crucial to assess the potassium level to prevent complications like cardiac arrhythmias associated with low potassium levels.

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