Test ID: Z0944
CPT code: 85420
LOINC: 5970-9
Specimen Type: Blue(sodium citrate)
Frequency: 2 – 3 days
Instructions: 1 mL Plasma from Blue-top (sodium citrate), Frozen, platelet poor plasma. FREEZE immediately.
Text: Monitor thrombolytic therapy; evaluate ligneous tissue depositions such as conjunctivitis. Plasminogen levels can be decreased in disseminated intravascular coagulation (DIC), hepatitis, leukemia, and with thrombolytic therapy..
Methodology: Streptokinase as mixed with the patient sample and the resulting plasminogen-SK complex converts a chromogenic substrate to produce color.