A nurse in an emergency department is caring for a client who reports substernal chest pain and dyspnea. The client is vomiting and is diaphoretic. Which of the following laboratory tests are used to diagnose a myocardial infarction? (Select all that apply.)
Myoglobin
Plasma low-density lipoproteins (LDL)
Troponin T
Troponin I
Correct Answer : A,C,D
A. Myoglobin is an early biomarker for myocardial injury and can be used for initial detection of myocardial infarction. However, it is less specific than troponins.
B. Plasma low-density lipoproteins (LDL) are associated with cardiovascular risk but are not used to diagnose an acute myocardial infarction.
C. Troponin T is a highly specific biomarker for myocardial infarction and is used to confirm the diagnosis of an MI.
D. Troponin I is another highly specific biomarker for myocardial infarction and is used to confirm the diagnosis of an MI.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","C","D","E"]
Explanation
A. Ecchymosis indicates bruising but is not a primary parameter for assessing neurovascular status.
B. Skin integrity is important to monitor for any signs of breakdown or infection.
C. Temperature helps assess for adequate blood flow and potential complications.
D. Color of the extremity indicates blood flow and can show signs of compromised circulation.
E. Sensation checks for nerve damage or impaired circulation.
Correct Answer is C
Explanation
A. The side-lying position is not appropriate for paracentesis because it does not allow optimal access to the abdomen and can make fluid removal more difficult.
B. The supine position is also not suitable for paracentesis, as it may not allow for proper drainage and can increase the risk of respiratory compromise, especially in clients with large volumes of ascitic fluid.
C. High-Fowler’s position is correct because it helps pool the ascitic fluid in the lower abdomen, making it easier to access and drain during the procedure. This position also helps improve breathing by relieving pressure on the diaphragm caused by the ascites.
D. The leaning forward position is not appropriate for paracentesis, as it can be uncomfortable and does not provide optimal access to the abdominal cavity for fluid removal.
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