Nursing Elites

1. The client is on digoxin and has severe digoxin toxicity. What is the nursing priority action?

• A. Check the potassium level.
• B. Give Digibind as an antidote.
• C. Change the dosing of digoxin to every other day.
• D. Administer a potassium supplement to decrease digoxin toxicity.

Correct answer: B

Rationale: The correct answer is to give Digibind as an antidote in cases of severe digoxin toxicity. Digibind works by binding to digoxin and preventing it from causing further harm. Checking the potassium level (choice A) is important but not the priority when the client has severe toxicity. Changing the dosing to every other day (choice C) is not appropriate in the setting of severe toxicity where immediate action is required. Giving a potassium supplement (choice D) may be needed eventually, but the priority is to administer Digibind to counteract the toxic effects of digoxin.

2. What is a condition where the heart's ability to pump blood is reduced because the heart muscle is enlarged, thickened, or stiffened?

• A. Cardiomyopathy
• B. Endocarditis
• C. Myocarditis
• D. Aortic stenosis

Correct answer: A

Rationale: Cardiomyopathy is the correct answer. It is a condition characterized by the enlargement, thickening, or stiffening of the heart muscle, leading to a reduced ability of the heart to pump blood effectively. Endocarditis (Choice B) is the inflammation of the inner lining of the heart chambers and valves, not specifically related to the heart muscle. Myocarditis (Choice C) is inflammation of the heart muscle typically caused by a viral infection, not directly related to the heart muscle's structure. Aortic stenosis (Choice D) is a condition characterized by the narrowing of the aortic valve opening, affecting blood flow from the heart's left ventricle to the aorta, different from the structural changes seen in cardiomyopathy.

3. What test evaluates the heart's response to physical stress, often involving exercise on a treadmill while monitoring the heart?

• A. Stress test
• B. Echocardiogram
• C. Holter monitor
• D. CT angiography

Correct answer: A

Rationale: A stress test, also known as an exercise stress test, evaluates the heart's response to physical stress by monitoring its activity during exercise, typically on a treadmill. This test helps assess the heart's performance, detect coronary artery disease, and evaluate the effectiveness of heart treatments. Echocardiogram (choice B) is an ultrasound of the heart that provides detailed images of the heart's structure and function, but it does not involve physical stress like a stress test. Holter monitor (choice C) is a device for continuously monitoring the heart's rhythm and rate over a period (usually 24-48 hours), not during exercise. CT angiography (choice D) is a diagnostic test that uses X-rays to visualize blood vessels but does not involve physical stress like a stress test.

4. The client is on spironolactone (Aldactone). What is the most important dietary instruction?

• A. Avoid foods high in potassium.
• B. Increase intake of foods high in potassium.
• C. Avoid foods high in sodium.
• D. Increase intake of foods high in sodium.

Correct answer: A

Rationale: The correct answer is to avoid foods high in potassium. Spironolactone is a potassium-sparing diuretic, meaning it helps the body retain potassium and can lead to hyperkalemia if too much potassium is consumed. Choices B, C, and D are incorrect because increasing intake of potassium-rich foods can worsen hyperkalemia, while avoiding foods high in sodium is not the primary concern when taking spironolactone.

5. What type of imaging test uses X-rays to visualize the blood vessels after injecting them with a contrast dye?

• A. Angiography
• B. CT scan
• C. MRI
• D. Ultrasound

Correct answer: A

Rationale: Angiography is the correct answer because it is an imaging test that specifically uses X-rays to visualize blood vessels by injecting them with a contrast dye. This procedure is crucial for diagnosing conditions such as blockages or aneurysms. The other options, CT scan, MRI, and ultrasound, do not involve the use of contrast dye to visualize blood vessels with X-rays.

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