Antithrombin III Antigen (Immunologic)

Test ID: 

704420

CPT code:

85301

Clinical Use:

Confirmation and characterization of congenital AT deficiency

Specimen Type:

Plasma, frozen

Requested Volume: 

2 mL

Minimum Volume: 

1 mL

Container Type: 

Blue-top (sodium citrate) tube

Patient Prep.

Do not draw from an arm with a heparin lock or heparinized catheter.

Collection:

Blood should be collected in a blue-top tube containing 3.2% buffered sodium citrate.1 Evacuated collection tubes must be filled to completion to ensure a proper blood-to-anticoagulant ratio

Storage Instructions:

Freeze.

Stability Requirements:

Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 30 days

Rejection Criteria

Severe hemolysis; improper labeling; clotted specimen; specimen diluted with IV fluids; samples thawed in transit; improper sample type; sample out of stability