s bloodwork is if they are on certain cholesterol medications (in the same group as Lipitor, Crestor, etc), as these can cause break down in muscle tissue as a side effect, releasing this enzyme into the blood Your grandfather should make sure to follow up
with the health care provider who ordered the test, and have it repeated and/or have further testing done. If he is on one of these medications, he should ask his doctor about discontinuing it until he can get in to have the test repeated.