Which laboratory test, when elevated, indicates an increased risk for the development of coronary artery disease?

Creatine kinase level

Homocysteine level

Serum high-density lipoproteins (HDL)

Serum potassium

Answer and Explanation

The Correct Answer is B

A. Creatine kinase is an enzyme released when muscle tissue is damaged, often used in diagnosing muscle injuries or heart attacks, not coronary artery disease risk.

B. Elevated homocysteine levels are associated with an increased risk for coronary artery disease as it can damage the blood vessel walls and promote clot formation.

C. High levels of serum high-density lipoproteins (HDL) are protective against coronary artery disease, not a risk factor.

D. Serum potassium is important for cardiovascular health, but it does not directly correlate with coronary artery disease risk.

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Correct Answer is C

Explanation

A. Accessory muscle use and nasal flaring may occur, but wheezing on exhalation is more typical in lower respiratory issues, such as asthma.

B. Thick mucus plugs and clubbing of the fingers are often associated with chronic conditions like cystic fibrosis, not croup.

C. Croup is a viral illness commonly presenting with fever, a characteristic “barking” cough, increased respiratory rate, and inspiratory stridor due to upper airway obstruction.

D. Frothy pink sputum and crackles are more indicative of pulmonary edema rather than croup.

A. hypertension; vision test B. left heart failure; b-type natriuretic peptide (BNP) C. aspiration pneumonia; arterial blood gas (ABG) D. chronic bronchitis; peak flow

Correct Answer is D

Explanation

A. Hypertension may contribute to cardiovascular issues, but it does not typically cause cyanosis or clubbing.

B. Left heart failure often leads to symptoms like dyspnea and fluid retention but does not commonly cause clubbing of the fingers.

C. Aspiration pneumonia may cause respiratory symptoms, but clubbing is more associated with chronic hypoxia, seen in conditions like chronic bronchitis.

D. Chronic bronchitis, often seen in chronic obstructive pulmonary disease (COPD), can cause long-term hypoxia, leading to cyanosis and clubbing of the fingers. A peak flow test can assess respiratory function and airflow limitations associated with chronic bronchitis.

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Which laboratory test, when elevated, indicates an increased risk for the development of coronary artery disease?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Which assessment finding is expected in a child diagnosed with croup?

Correct Answer is C

Explanation

A nurse is examining an overweight elderly man and notices cyanosis and clubbing of the fingers. The nurse suspects _____ and requests a _____.

Correct Answer is D

Explanation

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