Test ID: PT
CPT code: 85610
LOINC:
Specimen Type: 24 hrs unopened room temp
Frequency: Setup: Daily; TAT <24 hrs
Instructions: Full 3.2% NA CIT tube. Keep centrifuged tubes at RT (18-24C) DON’T REFRIG. If not analyzed wi/24 hrs separate/freeze at -20C.
Text: Evaluate extrinsic coagulation system; aid in screening for congenital
deficiencies of factors II, V, VII, X; Deficiency of prothrombin;
dysfibrinogenemia; heparin effect; Coumadin or warfarin effect; liver
failure; DIC; screen for Vit K deficiency. Stable 4 weeks, frozen.
Methodology: PHOTOMETRIC CLOT DETECTION