Nursing Elites

1. A client has a new prescription for Metoprolol to treat hypertension. Which of the following instructions should the nurse include?

• A. Stop taking the medication if your heart rate is below 70/min.
• B. Take the medication with food.
• C. Avoid sudden changes in position.
• D. Limit your sodium intake while taking this medication.

Correct answer: C

Rationale: The correct instruction for a client taking Metoprolol, a medication used to treat hypertension, is to avoid sudden changes in position. Metoprolol can cause orthostatic hypotension, a sudden drop in blood pressure when moving from lying down to standing up, leading to dizziness and falls. By advising the client to change positions slowly, the nurse helps prevent these adverse effects and promotes safety.

2. When administering digoxin (Lanoxin) to a patient, the healthcare provider observes various signs and symptoms of an overdose. Which of the following should the healthcare provider give to reverse digoxin toxicity?

• A. Naloxone
• B. Vitamin K
• C. Digibind
• D. Flumazenil

Correct answer: C

Rationale: Digibind, also known as Digoxin immune Fab, is the specific antidote used to treat digoxin toxicity. It works by binding to digoxin in the body, forming a complex that can be excreted by the kidneys, thereby reversing the toxic effects of digoxin overdose. Naloxone is used for opioid overdoses, not digoxin toxicity. Vitamin K is used to reverse the effects of warfarin overdose. Flumazenil is used to reverse the effects of benzodiazepine overdose, not digoxin toxicity.

3. 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.

4. A client has a new prescription for Lovastatin. Which of the following instructions should be included?

• A. Take this medication on an empty stomach.
• B. Take this medication in the morning.
• C. Take this medication at bedtime.
• D. Increase your intake of potassium-rich foods.

Correct answer: C

Rationale: Lovastatin should be taken at bedtime because cholesterol production in the liver is highest at night, making the medication more effective in reducing cholesterol levels. By taking it at bedtime, the medication aligns with the body's natural rhythm of cholesterol synthesis, optimizing its therapeutic effects.

5. A healthcare provider is caring for a client who has a new prescription for Digoxin. Which of the following findings should the healthcare provider identify as a potential sign of Digoxin toxicity?

• A. Nausea
• B. Dry mouth
• C. Hypoglycemia
• D. Tinnitus

Correct answer: A

Rationale: Nausea is a potential sign of Digoxin toxicity. Along with vomiting, visual disturbances, and confusion, it can be an early indication of an overdose. Dry mouth is not typically associated with Digoxin toxicity. Hypoglycemia is a low blood sugar level and is not directly related to Digoxin toxicity. Tinnitus, a ringing in the ears, is not a common sign of Digoxin toxicity. Healthcare providers should closely monitor clients on Digoxin for symptoms like nausea to prevent serious complications.

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