Nursing Elites

1. What is the therapeutic use of Phenytoin?

• A. Replacement in hypothyroidism to restore normal hormonal balance
• B. Diminished accumulation of acid in the gastric lumen with lessened gastroesophageal reflux
• C. Diminished seizure activity, termination of ventricular arrhythmias
• D. Prevention of thrombus formation, prevention of extension of existing thrombi

Correct answer: C

Rationale: Phenytoin is primarily used to diminish seizure activity and is effective in terminating ventricular arrhythmias. It works by stabilizing neuronal membranes, reducing repetitive neuronal firing, and limiting the spread of seizure activity in the brain. While phenytoin does not have a direct role in preventing thrombus formation or extending existing thrombi, it is crucial in managing seizures and certain arrhythmias.

2. A client has been prescribed Warfarin for atrial fibrillation. Which of the following instructions should the nurse include in the discharge teaching?

• A. Avoid foods high in vitamin K.
• B. Take this medication with food to prevent nausea.
• C. Monitor your heart rate daily before taking the medication.
• D. Limit your fluid intake to 1 liter per day.

Correct answer: A

Rationale: The correct instruction for the nurse to include in the discharge teaching for a client prescribed Warfarin is to 'Avoid foods high in vitamin K.' Foods high in vitamin K can decrease the effectiveness of Warfarin by interfering with its anticoagulant effects, potentially leading to blood clotting issues. It is crucial for clients on Warfarin therapy to maintain a consistent intake of vitamin K-containing foods to ensure the stability of the medication's effects. Choices B, C, and D are incorrect because taking Warfarin with food, monitoring heart rate daily, or limiting fluid intake are not directly related to optimizing the effectiveness of Warfarin therapy.

3. A client has been prescribed Prednisone for asthma. Which of the following instructions should the nurse include in the teaching?

• A. Take this medication with food to prevent nausea.
• B. Take this medication at bedtime to reduce drowsiness.
• C. Take this medication in the morning to reduce insomnia.
• D. Avoid sudden changes in position.

Correct answer: C

Rationale: Prednisone is best taken in the morning to reduce the risk of insomnia, a common side effect of corticosteroids. Instructing the client to take the medication in the morning aligns with the goal of minimizing the impact of insomnia, which can disrupt sleep patterns and affect overall well-being. Choices A, B, and D are incorrect. Taking Prednisone with food does not primarily focus on preventing nausea; taking it at bedtime does not primarily reduce drowsiness, and avoiding sudden changes in position is not a specific instruction related to Prednisone use for asthma.

4. A client is prescribed Bethanechol to treat urinary retention. Which of the following findings is a manifestation of muscarinic stimulation?

• A. Dry mouth
• B. Hypertension
• C. Excessive perspiration
• D. Fecal impaction

Correct answer: C

Rationale: Bethanechol is a muscarinic agonist, which stimulates muscarinic receptors. Activation of these receptors can lead to increased sweating (excessive perspiration) as a manifestation of muscarinic stimulation. Options A, B, and D are not typically associated with muscarinic stimulation. Dry mouth is a common side effect of anticholinergic medications, hypertension is not a common manifestation of muscarinic stimulation, and fecal impaction is not directly related to muscarinic receptor activation.

5. A healthcare provider is caring for a client who is prescribed Digoxin. Which of the following laboratory values should the provider monitor to assess for potential toxicity?

• A. Sodium
• B. Potassium
• C. Magnesium
• D. Calcium

Correct answer: B

Rationale: The correct answer is to monitor the client's potassium levels. Hypokalemia can increase the risk of Digoxin toxicity. Potassium levels should be closely monitored to prevent adverse effects. Monitoring sodium levels is not directly related to Digoxin toxicity. While magnesium and calcium are important electrolytes, potassium levels are more critical for Digoxin toxicity assessment.

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