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
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. "The medication can take up to 15 minutes to take effect." - This statement is not accurate, sublingual nitroglycerin works rapidly and often provides relief within a few minutes.
B. Sublingual nitroglycerin is administered by placing the tablet under the tongue, and it should be allowed to dissolve or be absorbed directly into the bloodstream through the mucous membranes. It is not swallowed or chewed. The small sip of water can help facilitate the dissolving process.
C. "Avoid taking the medication prior to exercising." - This statement is not accurate. Nitroglycerin can be taken before anticipated exertion or activities that may trigger angina to prevent anginal episodes during physical activity.
D. "Stop taking the medication and notify your provider if you develop a headache." - While headaches are a common side effect of nitroglycerin, they are generally transient and not a reason to stop taking the medication. Persistent or severe headaches should be reported to the healthcare provider.
Correct Answer is ["B","D","E"]
Explanation
A. Montelukast: Montelukast is a leukotriene receptor antagonist commonly used in the management of asthma and allergic rhinitis. It is not part of the standard tuberculosis treatment regimen.
B. Rifampin: Rifampin is a key component of tuberculosis treatment and is effective against both active and latent tuberculosis.
C. Acyclovir is an antiviral medication primarily used for herpes simplex virus infections and is not part of the standard treatment for tuberculosis.
D. Isoniazid: Isoniazid is another essential drug in the treatment of tuberculosis, particularly for the prevention of latent tuberculosis progression to active disease.
E. Pyrazinamide: Pyrazinamide is part of the standard combination therapy for tuberculosis.
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