Test Details

Mnemonic

AATHR

Ordering Code

3500044

CPT-4 Code(s)

81240; 85300, 85303, 85306, 85307, 85379, 85384, 85390, 85610, 85613, 85670, 85730 (others as approp cost)

Specimen Information

Patient Preparation

Draw prior to starting anticoagulants and thrombolytic therapy.
more

Collect

Yellow ACD A and Light blue 3.2 % sodium citrate
more

Specimen Preparation

Whole blood and plasma are required. Whole blood: Draw blood in a yellow ACD and send 6.0 mL whole blood room temperature.
Plasma: Draw blood in 3 - 4 light blue 3.2 % sodium citrate tubes. Send 6.0 mL plasma frozen in 1.0 mL aliquots in 6 plastic screw-capped vials.
Ship all specimens together and label properly as "whole blood" or "plasma".
more

Alternate Specimen

Whole blood: Lavender EDTA
more

Minimum Volume

3.0 mL whole blood, 5.0 mL plasma in 1 mL aliquots
more

Transport Temperature

Blood: Room temperature; Plasma: Frozen
more

Rejection Criteria

Gross hemolysis, lipemia or icteria
more

Stability

Plasma:
Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 14 days

Whole blood:
Room temperature: 7 days
Refrigerated: 14 days
Frozen: 14 days
more

Methodology

Latex Immunoassay, Chromogenic Assay, Direct Mutation Analysisi, Clauss, Optical Clot-Based
more

Reference Range

See report
more

Performing Laboratory

Mayo Clinic Laboratories
more

New York DOH Approval Status

Yes
more