Test ID: CKMB
CPT code: 82553
LOINC: 13969-1
Specimen Type: Serum, or green top
Frequency: Setup: Daily; TAT <24 hrs.
Instructions: 0.5mL serum from Red gel tube; Alt/ plasma from green top tube.
Text: CKMB has traditionally been used as an aid in the diagnosis of
myocardial injury. While CKMB has been replaced by troponin assays in
the work-up of many patients with acute chest pain, CKMB may be useful
if the initial troponin determination is abnormal or if a hospitalized
patient has a suspected re-infarction.
Methodology: Two site immunoenzymatic “sandwich” assay.