A client presents to the emergency department with complaints of substernal chest pain. Eight hours later, it is noted on laboratory assessment that myoglobin levels have not risen. What conclusion can be drawn from this information?
A. The client has not experienced a myocardial infarction.
B. The client is experiencing an evolving myocardial infarction.
C. The client most likely had a myocardial infarction several days ago.
D. The client has experienced a myocardial infarction within the last 24 hours.
A
Myoglobin is a heme protein found in skeletal and cardiac muscle. On myocardial injury, myog-lobin levels rise within 3 to 6 hours. If myoglobin levels have not risen within that time, the client has not experienced a myocardial infarction.
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Fill in the blank(s) with correct word
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