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
Explanation
A. Keeping the leg in a dependent position can increase swelling; the leg should be elevated to reduce swelling.
B. Applying ice to the affected area is recommended to reduce swelling and pain after arthroscopic knee surgery.
C. Active range of motion exercises might be recommended, but this depends on the surgeon’s instructions and typically starts after the initial recovery period.
D. Bedrest for 24 hours is not usually required; gentle movement and following specific rehabilitation protocols are encouraged.
Correct Answer is D
Explanation
A. "I will not be allowed to drink much liquid for 12 hours after the procedure." is incorrect. The client is usually encouraged to drink fluids after the procedure to help flush the contrast material from the body.
B. "I can expect to have some itching during the procedure." is incorrect. Itching is not a typical expectation of the myelogram procedure.
C. "I will have a radioactive substance injected during the procedure." is incorrect. A myelogram involves the injection of a contrast dye, not a radioactive substance.
D. "I will need to keep my head elevated after the procedure." is correct. Keeping the head elevated after a myelogram helps prevent headaches and other complications from the procedure.
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