Antithrombin III Activity (AT III ACT)
Tube Type
| Test ID |
LAB311 |
| EPIC Order |
ANTITHROMBIN III |
| CPT Code(s) |
85300 |
| Group/Individual Test |
Individual |
| Laboratory |
Core Laboratory |
| Tube Station |
30 Routine: 888 STAT |
| Specimen |
Routine: |
2.7 mL blood/Lt Blue Sodium Citrate tube; See Comments |
| Pediatric: |
1.8 mL blood pediatric light blue top tube; See Comments |
| Stability |
Unspun: |
4 hours |
| Room Temperature: |
4 hours |
| Refrigerated: |
NO |
| Frozen: |
14 days (plasma only) |
| Availability |
Routine: |
24 hours/day |
| STAT: |
YES |
| Turnaround Time |
Stat 1 hr; Routine 2 hrs |
| Reference Range |
Normal: |
80-130% of normal |
| Critical: |
<46% of normal |
| Comments |
- Deliver Immediately. Draw tube must be allowed to fill completely. Short draws will be rejected.
|
Reviewed by J. Carr on November 19, 2025
