Specimen Requirements
Title
PTT (aPTT, ACTIVATED PARTIAL THROMBOPLASTIN TIME)
Specimen Requirement
1 blue top/5.0 mL, 3.2% Sodium Citrate tube
Methodology
Nephelometry
Stability
Refrigerated: 2 days; Frozen: 2 weeks
Reference Range
See Report
Turnaround
1 day
Clinical Use
PTT is a screening test for the intrinsic coagulation system and as a monitor for the effectiveness of heparin therapy.
Test Code
1919