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Test Code AT3 Anti-Thrombin III Activity

Important Note

For outpatients, this test must be collected at the Valley Health System- Ridgewood Campus Outpatient Laboratory only

Specimen Requirements

Container/Tube: Three (3) Light blue-top (3.2% sodium citrate) tube

Specimen Volume: Full 4.5-mL tube of whole blood

Collection Instructions: Immediately invert tube and mix gently 8 times. Clotted blood is not acceptable. Avoid hemolysis.

Note: 1. Patient should not be receiving Coumadin® for at least 14 days and heparin for at least 48 hours prior to draw.

2. Label specimen appropriately.

Specimen Transport Temperature

Ambient

Performing Laboratory

The Valley Hospital

Test Classification and CPT Coding

85300