Alert

Activated Partial Thromboplastin Time Mix - (APTT MIX)

Tube type = Light Blue Top

Tube Type

Test ID LAB326
EPIC Order Equal Mix, APTT
CPT Code(s) 85732
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 Lt Blue Sodium Citrate tube
Stability



 Unspun: 4 hours
Room Temperature: 4 hours
Refrigerator: NO
Frozen: 14 days (plasma only)
Availability Routine: 24 hrs/day
STAT: No
Turnaround Time Routine:  2 hours
Reference Range Normal: Interpretation
Comments
  • DELIVER IMMEDIATELY
  • ORDER ON SAME SAMPLE AS APTT.
  • Draw tube must be allowed to fill completely. Short draws will be rejected.

Reviewed by J. Carr on November 19, 2025

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514