|
|
|
|
|
|
|
Synonyms: |
CK-MB |
|
Lab
Test Code: |
CKMB |
|
Test
Performed In: |
Chemistry (Rapid Response) |
|
Test
Methodology: |
Chemiluminescence |
|
Reported:
|
STAT - 60 minutes Routine: 2 - 4 hours Test Set Up Frequency: Daily (Monday-Friday) |
|
Patient
Preparation: |
|
|
Specimen
Requirements: |
Collect: 4 mL blood in light green-top (lithium heparin) tube(s), or send 1 mL of plasma refrigerated or frozen. Transport: Refrigerated Minimum volume: 1 mL plasma Rejection Criteria: Specimens received beyond stated stability Specimen Stability: After separation from cells: Ambient: 8 hours; Refrigerated: 12 hours; frozen: 24 hours. |
|
Reference
Values: |
CKMB > 5 RI > 2.5: Strongly suggests myocardial involvement CKMB > 5 RI < 1: Suggests skeletal muscle involvement CKMB > 5 RI > 1 but < 2.5: Uncertain; requires a second specimen 4-8 hours later CKMB < 5 RI > 2.5: Suggests early myocardial infarction or chronic renal, pulmonary, or hepatic disease, or could be within normal range. Investigation of myocardial infarction requires second specimen 4 to 8 hours later. CKMB < 5 RI < 2.5: Normal range Note: 1. After non-recurrent myocardial infarction (MI), CKMB levels increase typically 3 to 6 hours after onset of chest pain and return to normal after 48 to 72 hours. Multiple CKMB determinations 4 to 8 hours apart provide the most detailed information. 2. This will confirm peaks (approximately 16 hours) and the fall of CKMB following MI. 3. When there is a combination myocardial and skeletal muscle injury, caution is suggested in interpreting results (CKMB > 5, RI equal to approximately 1.0). |
|
Additional
Information: |
|
|
|
82550, 82553 |