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Heparin cofactor assay, AT-III.
To assist in diagnosing heparin resistance or disorders resulting from a hypercoagulable state such as thrombus.
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 Immunoturbidimetric)
|Age||Conventional Units (% of Normal)|
|18 yr–older adult||80–120|