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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