A client came into the emergency room with a possible myocardial infarction. The provider orders a series of blood tests to be drawn, which lab should the nurse anticipate will be drawn?
Brain Natriuretic Peptide (BNP)
Total Lactate Dehydrogenase (LDH)
Troponin
Creatinine
The Correct Answer is C
A. Brain Natriuretic Peptide (BNP) is a marker for heart failure, not the primary diagnostic test for myocardial infarction (MI).
B. Total Lactate Dehydrogenase (LDH) was historically used but is not specific for MI and has been replaced by troponin testing.
C. Troponin is correct. Cardiac-specific troponins (Troponin I and Troponin T) are the gold standard for detecting myocardial injury. Elevated levels indicate myocardial damage and are crucial for diagnosing MI.
D. Creatinine is important for assessing kidney function but is not a marker for myocardial infarction.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Heart failure is associated with central sleep apnea, not obstructive sleep apnea (OSA), which results from airway obstruction.
B. Opioid overdose is linked to central sleep apnea, where the brain fails to send proper signals to the breathing muscles. It does not cause obstruction of the airway.
C. Brainstem injury can affect respiratory drive, but it is not a direct cause of OSA, which is due to mechanical airway obstruction.
D. Enlarged tonsils are correct. In children and adults, enlarged tonsils can block the airway, making them a common cause of OSA.
Correct Answer is A
Explanation
A. Pleural effusion is a common complication of heart failure. Increased pressure in the pulmonary circulation can cause fluid to accumulate in the pleural space, leading to dyspnea and decreased lung expansion.
B. Infection is not a direct complication of heart failure. However, individuals with heart failure may have an increased risk of infections due to a weakened immune system.
C. Asthma is not a complication of heart failure. While both conditions can cause shortness of breath, asthma is a separate respiratory disorder.
D. Hemorrhage is not associated with heart failure. Instead, heart failure can lead to clotting abnormalities or increased bleeding risk if the client is on anticoagulants.
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