Test Code PROTHROMBIN TIME PROTHROMBIN TIME
Department
Coagulation
Specimen Type
Plasma
Method
Photometric Clot Detection
Container
Sodium citrate 3.2% (light blue-top)
Special Requirements
1.8 mL tube available. Any blue-top tube must be completely filled. DO NOT refrigerate
Standard Volume
2.7ml
Minimum Volume
1.8 ml
Pediatric Volume
N/A
Ship Temperature
See Stability
Stability Refrigerated
N/A Do Not Refrigerate
Stability Room Temp
24 hours
Stability Frozen
7 Days
Spin down and separate plasma. Freeze plasma at -70° C.
CPT Code
85610
Days Test Set Up
Monday through Sunday
Group Components
PT/INR