A nurse is reviewing the diagnostic tests for a client suspected of having congestive heart failure. Which test is considered the gold standard for diagnosing CHF?

Electrocardiogram (ECG)

Chest X-ray

Echocardiogram

Brain natriuretic peptide (BNP) level

Answer and Explanation

The Correct Answer is C

A) This choice is incorrect because an electrocardiogram (ECG) is a valuable diagnostic tool for assessing the heart's electrical activity and rhythm, but it is not the gold standard for diagnosing CHF. It can provide information about possible cardiac hypertrophy or rhythm disturbances associated with heart failure.

B) This choice is incorrect because a chest X-ray is helpful in evaluating heart size and the presence of pulmonary congestion, but it is not the gold standard for diagnosing CHF.

C) This choice is correct. An echocardiogram is the gold standard for diagnosing CHF. It uses ultrasound waves to assess the heart's structure and function, including ejection fraction and valve function, providing critical information to confirm the diagnosis of heart failure.

D) This choice is incorrect because a brain natriuretic peptide (BNP) level is a blood test that can aid in the diagnosis of CHF. Elevated BNP levels indicate heart strain, but it is not the gold standard for diagnosing CHF.

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Correct Answer is A

Explanation

A) This choice is correct. Beta-blockers should not be abruptly discontinued, as sudden discontinuation can lead to rebound effects and worsen the client's condition. Gradual tapering of the medication is necessary under the guidance of the healthcare provider.

B) This choice is incorrect because taking a beta-blocker with a high-fat meal is not necessary. Beta-blockers can be taken with or without food, but consistent administration is essential for optimal therapeutic effects.

C) This choice is incorrect because limiting fluid intake is not specific to the administration of beta-blockers. Fluid intake may need to be adjusted based on the client's overall fluid balance and congestive heart failure status, but it is not a direct instruction related to the medication.

D) This choice is incorrect because the timing of beta-blocker administration varies depending on the specific beta-blocker prescribed and the client's individual response. Some beta-blockers may be taken in the morning, while others may be taken in the evening. The client should follow the prescribed schedule given by the healthcare provider.

A. Complete blood count (CBC) B. Basic metabolic panel (BMP) C. Brain natriuretic peptide (BNP) level D. C-reactive protein (CRP) level

Correct Answer is C

Explanation

A) This choice is incorrect because a complete blood count (CBC) is a general blood test that measures different components of the blood, such as red blood cells, white blood cells, and platelets. It is not specifically used to measure heart strain or diagnose CHF.

B) This choice is incorrect because a basic metabolic panel (BMP) is a blood test that measures electrolytes, kidney function, and glucose levels. It is not specific to diagnosing CHF.

C) This choice is correct. A brain natriuretic peptide (BNP) level is a blood test specifically used to measure heart strain. Elevated BNP levels can indicate heart failure, making it a valuable diagnostic tool in assessing suspected CHF.

D) This choice is incorrect because a C-reactive protein (CRP) level is a marker of inflammation and is not specific to diagnosing CHF.

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A nurse is reviewing the diagnostic tests for a client suspected of having congestive heart failure. Which test is considered the gold standard for diagnosing CHF?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is caring for a client with congestive heart failure who is prescribed a beta-blocker. The nurse should instruct the client to:

Correct Answer is A

Explanation

A nurse is caring for a client with suspected congestive heart failure. Which blood test is specifically used to measure heart strain and assist in the diagnosis of CHF?

Correct Answer is C

Explanation

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