PTT/PT (INR)

Test ID: PTPTT

CPT code: 85610+85730
LOINC:
Specimen Type: Blue Citrate
Frequency: Setup: Daily; TAT <24 hours Instructions: Full 3.2% sodium citrate tube (Blue). If not analyzed within 4 hrs, spin 15min at 1500xg, separate plasma into 2 0.5ml aliquots, freeze at -20.
Text: Stable 2 weeks frozen.
Methodology: Photometric clot detection

Test Name


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