Test Code APTT Activated Partial Thromboplastin Time (APTT), Plasma
Performing Laboratory
NRL-Coagulation
Methodology
Photo Optical
Specimen Requirements
Specimen must arrive within 4 hours of draw.
Specimen Type: Blood
Container/Tube: Light-blue top (citrate)
Specimen Volume: Full tube
Collection Instructions:
1. Clotted blood or insufficient specimen is not acceptable.
2. Tube should remain stoppered.
3. If specimen transport time is >4 hours, spin down, and transfer citrate, platelet-free plasma into a plastic vial.
Reference Values
27.0 - 37.0 seconds
Alert value (automatic call-back): ≥150.0 seconds
Note: Reference value may change slightly with each new lot of reagents.
Day(s) Test Set Up
Monday through Sunday
Turnaround Time:
1 hour
Specimen Transport Temperature
Ambient-Blood
Frozen-Plasma
Test Classification and CPT Coding
85730
LOINC Code Information
Name |
LOINC Code |
Activated Partial Thromboplastin Time |
14979-9
|