Antithrombin III

Label Mnemonic:	AT3
Epic code:	LAB1009
Downtime form:	Doctor/Provider Orders - Pathology Core and Specialty Care Nursery

Hemostasis/Thrombosis
6240 RCP
356-3573

Specimen(s):

Collection Medium:

Light Blue top tube 2.7 mL (Na Citrate)

Minimum:

Full draw; 2.7 mL light blue top.

Delivery Instructions:

Deliver to laboratory within 1 hour of collection.

Turn Around Time:

2 hours (upon receipt in laboratory)

Reference Range:

83-118%

Methodology:

Inhibition of Factor Xa activity; residual Factor Xa detected with chromogenic substrate.

CPT Code:

85300