A nurse is reviewing the laboratory values of a client who had a myocardial infarction 3 hr ago. The nurse should expect which of the following laboratory values to be elevated?

Serum amylase

Unconjugated bilirubin

Aspartate aminotransferase (AST).

Troponin I

Answer and Explanation

The Correct Answer is D

A. Serum amylase: Serum amylase is an enzyme associated with pancreatic function, and its elevation is not specific to myocardial infarction.

B. Unconjugated bilirubin: Elevation of unconjugated bilirubin is associated with liver function and hemolysis, not specifically with myocardial infarction.

C. Aspartate aminotransferase (AST): While AST may be elevated in conditions affecting the heart, it is not as specific or sensitive for myocardial infarction as troponin I.

D. Troponin I: This is the correct answer. Troponin I is a cardiac-specific biomarker released into the bloodstream when there is damage to cardiac muscle, such as during a myocardial infarction. Troponin I levels start to rise within 3-4 hours after the onset of myocardial infarction, making it a crucial marker for early detection.

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Correct Answer is B

Explanation

Correct answer: B

A. "I will take my diuretic before sleep and drink fluids during the day": This statement is not correct. Diuretics are usually taken in the morning to avoid disrupting sleep with increased urination at night. Additionally, fluid intake is generally restricted in congestive heart failure to manage fluid balance.

B. "I plan to slow down if I am tired the day after exercising":This statement reflects an understanding of the need to manage activity levels and recognize the signs of overexertion, which is crucial for clients with congestive heart failure. Pacing activities and allowing for adequate rest can help prevent exacerbations of heart failure symptoms.

C. "I will read food labels and limit my sodium to 4 grams per day": This is incorrect. Limiting sodium intake is a key component of heart failure management. The recommended sodium intake for individuals with heart failure is often much lower than 4 grams per day, typically around 2 grams or less.

D. "I should use naproxen to manage discomfort": Using nonsteroidal anti-inflammatory drugs (NSAIDs) like naproxen can contribute to fluid retention and worsen heart failure symptoms. This statement is not indicative of effective teaching.

A. The pain persists with rest and organic nitrates. B. The pain usually lasts longer than 20 min. C. Exertion and anxiety can trigger the pain. D. The pain often radiates to the jaw or the back.

Correct Answer is C

Explanation

A. The pain persists with rest and organic nitrates: This statement is incorrect. Anginal pain typically improves with rest and can be relieved by the administration of organic nitrates.

B. The pain usually lasts longer than 20 min: This statement is incorrect. Anginal pain is often brief and lasts for a few minutes, typically less than 20 minutes.

C. Exertion and anxiety can trigger the pain: This is the correct answer. Anginal pain is often triggered by activities that increase the workload of the heart, such as exertion or emotional stress (anxiety). These triggers lead to an increased demand for oxygen by the heart muscle, which may exceed the compromised blood supply, resulting in angina.

D. The pain often radiates to the jaw or the back: This statement is correct. Anginal pain may radiate to the jaw, back, shoulder, arm, or neck. The radiation of pain is a characteristic feature of angina.

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A nurse is reviewing the laboratory values of a client who had a myocardial infarction 3 hr ago. The nurse should expect which of the following laboratory values to be elevated?

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Naxlex Comprehensive Predictor Exams

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