PROTHROMBIN TIME
Synonyms: | PT; Protime |
Computer Code: | (PT) |
Specimen Collection: | 2.7 mL (blue top tube) 90% full |
Minimum Volume: | 1.8 mL blood (blue top tube) 90% full |
Handling Instructions for Offsite Areas: | Maintain at room temperature. If specimen cannot be transported within 2 hours, centrifuge at 3,000 rpm for 20 minutes. Using a plastic pipette, transfer plasma to plastic tube and freeze plasma. |
Reference Values: | <16.6 seconds |
Lab Code: | Hematology |
Requisition: | C/H |
Test Frequency: | Daily |
Routine TAT: | 4 hrs |
Stat TAT: | 60 min |
CPT Code(s): | 85610 |
LCD or NCD: | |
Methodology Used: |
See Addendum XVII |