The nurse is reinforcing teaching regarding diet to a client who has had a myocardial infarction. Which of the following diet choices by the client indicates an understanding of the teaching?

Fried fish sandwich and potato salad

Baked turkey and salad

Biscuits with sausage gravy and sliced tomatoes

Barbecued ribs and canned baked beans

Answer and Explanation

The Correct Answer is B

A. Fried fish sandwich and potato salad: Fried foods are high in unhealthy fats, which can increase cholesterol levels and are not recommended for clients after a myocardial infarction.

B. Baked turkey and salad: This is a healthy choice, as baked turkey is low in fat, and a salad provides nutrients without excessive fat or cholesterol, supporting heart health.

C. Biscuits with sausage gravy and sliced tomatoes: Biscuits and sausage gravy are high in saturated fats, which are not appropriate for a heart-healthy diet.

D. Barbecued ribs and canned baked beans: Barbecued ribs and canned baked beans may contain high levels of saturated fats, sugar, and sodium, which are not recommended for someone recovering from a myocardial infarction.

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Correct Answer is A

Explanation

A. Troponin T: Troponin T remains elevated for 10 to 14 days after a myocardial infarction. This protein is highly specific for cardiac muscle injury and is used to confirm myocardial infarction.

B. Creatinine phosphokinase: Creatinine phosphokinase (CPK) typically returns to normal levels within 3 days after a myocardial infarction, so it would no longer be elevated at this point.

C. Myoglobin: Myoglobin rises early after a myocardial infarction but is not specific to heart muscle and returns to normal within 24 hours, so it would not be elevated at this time.

D. Creatinine kinase-MB: Creatinine kinase-MB (CK-MB) usually returns to normal levels within 2 to 3 days after a myocardial infarction, so it is unlikely to still be elevated 6 days later.

A. The QT interval is equal to the R to R interval. B. The QRS intervals are 0.08 second. C. The ST segment is above the isoelectric line. D. The PR intervals are 0.15 second.

Correct Answer is C

Explanation

A. The QT interval is equal to the R to R interval. This is not a finding associated with myocardial infarction. QT interval changes are more related to electrolyte imbalances or medication effects.

B. The QRS intervals are 0.08 second. A QRS duration of 0.08 seconds is normal and does not indicate myocardial infarction. Prolongation of the QRS complex might suggest a bundle branch block or other conduction issues.

C. The ST segment is above the isoelectric line. ST-segment elevation is a hallmark sign of an acute myocardial infarction (STEMI). It reflects injury to the heart muscle.

D. The PR intervals are 0.15 second. A PR interval of 0.15 seconds is within the normal range (0.12–0.20 seconds) and does not indicate myocardial infarction.

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The nurse is reinforcing teaching regarding diet to a client who has had a myocardial infarction. Which of the following diet choices by the client indicates an understanding of the teaching?

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Naxlex Comprehensive Predictor Exams

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