Prothrombin Time
0030215
Ordering Recommendation
Submit With Order
Mnemonic
PT
Methodology
Electromagnetic Mechanical Clot Detection
Performed
Sun-Sat
Reported
1-2 days
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
 
Collect
Lt. blue (sodium citrate).  
Specimen Preparation
Separate plasma from cells within 24 hours. Transfer 1 mL platelet-poor plasma to an ARUP Standard Transport Tube. (Min: 0.5 mL)  
Storage/Transport Temperature
Frozen.  
Unacceptable Conditions
Serum. Clotted, hemolyzed, or refrigerated specimens.  
Remarks
 
Stability
Ambient: 24 hours; Refrigerated: Unacceptable; Frozen: 2 weeks  
Reference Interval
12.0-15.5 seconds
Interpretive Data
Note
Reference intervals established using 3.2% sodium citrate.
CPT Code(s)
85610
Components
Component Test Code*Component Chart Name
0030220Prothrombin Time
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Cross References
  • INR
  • Prothrombin Time, Plasma
  • Protime
  • PT