Nursing Elites

1. While providing an Angiotensin-converting enzyme (ACE) inhibitor, the patient asks what the action of the drug is. As a healthcare provider, you explain that the action of an ACE inhibitor is:

• A. To lower blood pressure by blocking the conversion of angiotensin I to vasoconstrictor angiotensin II
• B. To inhibit reabsorption of sodium back into the body, ultimately increasing urine output and lowering blood pressure
• C. To decrease heart rate and blood pressure by competing with Beta1 and Beta2 receptors in the heart and lungs
• D. To lower blood glucose by stimulating the release of insulin

Correct answer: A

Rationale: ACE inhibitors lower blood pressure by blocking the conversion of angiotensin I to vasoconstrictor angiotensin II. Angiotensin II is a potent vasoconstrictor, and by inhibiting its formation, ACE inhibitors help dilate blood vessels, reduce blood pressure, and decrease the workload on the heart. Choice B is incorrect as it describes the mechanism of action of diuretics, not ACE inhibitors. Choice C is incorrect as it refers to the action of beta-blockers, not ACE inhibitors. Choice D is incorrect as it describes the mechanism of action of antidiabetic medications, not ACE inhibitors.

2. A client presents in the Emergency Department with a suspected MI. Which medication should NOT be given as soon as possible?

• A. Clopidogrel (Plavix)
• B. Morphine
• C. Aspirin (ASA)
• D. Metoprolol (Lopressor)

Correct answer: A

Rationale: In the setting of a suspected myocardial infarction (MI), the priority medications to administer as soon as possible include aspirin (ASA) and possibly morphine to manage pain and anxiety. Clopidogrel (Plavix) is not typically administered immediately in the emergency setting for MI management. Metoprolol (Lopressor) is indicated after aspirin administration and stabilization of the patient. Therefore, in this scenario, clopidogrel should NOT be given as a first-line medication for a suspected MI.

3. A client has a new prescription for levothyroxine. Which of the following instructions should the nurse include?

• A. Take this medication at bedtime.
• B. Take this medication with food.
• C. Take this medication on an empty stomach in the morning.
• D. Take this medication with an antacid.

Correct answer: C

Rationale: Levothyroxine should be taken on an empty stomach in the morning to enhance its absorption. This timing allows for optimal absorption and effectiveness of the medication. Taking it with food, at bedtime, or with an antacid may interfere with its absorption and reduce its efficacy.

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

• A. Take this medication with food.
• B. Avoid eating foods high in potassium.
• C. Take this medication at bedtime.
• D. Take this medication every other day.

Correct answer: A

Rationale: The correct instruction for taking Metformin is to take it with food. This helps reduce gastrointestinal side effects and ensures better absorption of the medication. Choice B is incorrect as there is no specific need to avoid foods high in potassium when taking Metformin. Choice C is incorrect because Metformin is usually taken with meals, not at bedtime. Choice D is incorrect as Metformin is typically taken daily, not every other day.

5. A client has a new prescription for Lithium Carbonate. When teaching the client about ways to prevent Lithium toxicity, what advice should the nurse provide?

• A. Avoid using acetaminophen for headaches.
• B. Restrict intake of foods high in sodium.
• C. Decrease fluid intake to less than 1,500 mL daily.
• D. Limit aerobic activity in hot weather.

Correct answer: D

Rationale: The nurse should advise the client to limit aerobic activity in hot weather to prevent sodium/water depletion, which can increase the risk for Lithium toxicity. Excessive sweating and fluid loss can lead to dehydration and changes in lithium levels, potentially resulting in toxicity. Choices A, B, and C are incorrect. Avoiding acetaminophen for headaches is not directly related to Lithium toxicity. Restricting sodium intake and decreasing fluid intake can lead to increased lithium levels and toxicity, so these are not recommended actions.

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