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 B

Explanation

A. While sodium reduction might indirectly impact weight in some cases, its primary role in blood pressure control is related to its effect on blood volume and vascular resistance.

B. Sodium reduction is proven to help reduce blood pressure by lowering blood volume and decreasing vascular resistance.

C. Sodium actually leads to fluid retention, which can increase blood volume and raise blood pressure, not decrease it.

D. There is no direct link between sodium intake and smoking habits; reducing sodium primarily affects blood pressure management independently of smoking.

A. Bleeding in the brain. B. Anxiety. C. Kidney failure. D. Extreme vomiting.

Correct Answer is C

Explanation

A. Bleeding in the brain could cause neurological symptoms but does not directly correlate with the respiratory acidosis indicated by the ABGs.

B. Anxiety typically leads to respiratory alkalosis due to hyperventilation, which does not align with the results showing acidemia.

C. The ABG results indicate a primary respiratory acidosis (low pH and elevated PCO2), which can occur in kidney failure due to the kidneys' inability to excrete acids and manage bicarbonate, leading to an accumulation of CO2.

D. Extreme vomiting is associated with metabolic alkalosis due to loss of gastric acid, which does not explain the acid-base disturbance presented.

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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

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Correct Answer is B

Explanation

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Explanation

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