Antithrombin III
| Label Mnemonic: | AT3 |
| Epic code: | LAB1009 |
| Order form: | Laboratory Requisition |
| Supply order: | Supply Order Form |
| Billing: | Billing Policies |
| CPT code: | 85300 |
Specimen(s):
Plasma More information
Collection Medium:
 |
| Light Blue top tube 2.7 mL (Na Citrate) |
Minimum:
Full draw; 2.7 mL light blue top.
Turn Around
Time:
2 hours (upon receipt in laboratory)
Reference Range:
83-118%
Comments:
Instrumentation changed from BCS-XP to CS-5100 on 12/16/2019.
Methodology:
Inhibition of Factor Xa activity; residual Factor Xa detected
with chromogenic substrate.
Sample
Processing:
Centrifuge within four hours of draw time.
Separate plasma into plastic container and cap (glass is not acceptable).
Centrifuge a second time to ensure platelet poor plasma and separate plasma into a new, labeled plastic tube, cap.
Separate plasma into plastic container and cap (glass is not acceptable).
Centrifuge a second time to ensure platelet poor plasma and separate plasma into a new, labeled plastic tube, cap.
Sample
Storage:
Freeze specimen immediately.
Transport
Instructions:
Place labeled specimen into zip-lock type biohazard bag; seal bag.
Place requisition into outside pocket of bag.
Place dry ice on top of specimen in Styrofoam container.
Place requisition into outside pocket of bag.
Place dry ice on top of specimen in Styrofoam container.
CPT Code:
85300