A nurse is reviewing the laboratory findings of a client who experienced an acute myocardial infarction 6 days ago. Which of the following laboratory values should the nurse expect to remain elevated at this time?
Troponin T
Creatinine phosphokinase
Myoglobin
Creatinine kinase-MB
The Correct Answer is A
A. Troponin T: Troponin T remains elevated for 10 to 14 days after a myocardial infarction. This protein is highly specific for cardiac muscle injury and is used to confirm myocardial infarction.
B. Creatinine phosphokinase: Creatinine phosphokinase (CPK) typically returns to normal levels within 3 days after a myocardial infarction, so it would no longer be elevated at this point.
C. Myoglobin: Myoglobin rises early after a myocardial infarction but is not specific to heart muscle and returns to normal within 24 hours, so it would not be elevated at this time.
D. Creatinine kinase-MB: Creatinine kinase-MB (CK-MB) usually returns to normal levels within 2 to 3 days after a myocardial infarction, so it is unlikely to still be elevated 6 days later.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Exercise ECG stress test: An exercise ECG stress test requires informed consent because it involves physical activity that may place stress on the heart and carries certain risks, such as inducing arrhythmias or other complications.
B. Electrocardiogram: An electrocardiogram (ECG or EKG) is a non-invasive, routine diagnostic test that does not require written informed consent.
C. CT scan without contrast dye: A CT scan without contrast dye is a standard imaging procedure that typically does not require written informed consent, unless there are specific risks or complications involved.
D. Echocardiogram: An echocardiogram is a non-invasive ultrasound test of the heart and does not require written informed consent under normal circumstances.
Correct Answer is A
Explanation
A. Obtain a pair of slipper socks for the client. This is an appropriate action. Slipper socks can provide warmth and help improve circulation, promoting comfort.
B. Increase the client's oral fluid intake. While hydration is important for overall health, it will not directly address the cold feet caused by poor circulation in this scenario.
C. Place a moist heating pad under the client's feet. Heating pads, especially moist ones, can increase the risk of burns and should be avoided in clients with vascular occlusions, as they may have decreased sensation.
D. Rub the client's feet briskly for several minutes. Rubbing the feet briskly could cause skin breakdown and injury due to fragile skin and impaired circulation.
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