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To assess thrombolytic disorders such as disseminated intravascular coagulation (DIC) and monitor thrombolytic therapy.
Plasma collected in a completely filled blue-top (3.2% sodium citrate) tube. If the patient’s hematocrit exceeds 55%, the volume of citrate in the collection tube must be adjusted.
(Method: Chromogenic substrate for plasminogen activity and nephelometric for plasminogen antigen)
|Plasminogen activity||80%–100% of normal|
|Plasminogen antigen||7.5–15.5 mg/dL|
|Plasminogen activity in newborns is half of adult ranges.|