Thrombin Time with Reflex to Thrombin Time 1:1 Mix
0030260
Ordering Recommendation
Submit With Order
Mnemonic
TT
Methodology
Clotting
Performed
Mon-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). Refer to Specimen Handling at aruplab.com for hemostasis/thrombosis specimen handling guidelines.  
Specimen Preparation
Transfer 2 mL platelet-poor plasma to an ARUP Standard Transport Tube. (Min: 1 mL)  
Storage/Transport Temperature
CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.  
Unacceptable Conditions
Serum. Hemolyzed or non-frozen specimens.  
Remarks
 
Stability
Ambient: 2 hours; Refrigerated: 4 hours; Frozen: 2 weeks  
Reference Interval
Test Number Components Reference Interval
Thrombin Time 14.7-​19.5 seconds
Thrombin Time 1:1 Mix 14.7-​19.5 seconds
Interpretive Data
Note
If Thrombin Time is elevated, then Thrombin Time 1:1 mix will be added. Additional charges apply.
CPT Code(s)
85670; if reflexed, add 85670
Components
Component Test Code*Component Chart Name
0030270Thrombin Time
0030275Thrombin Time, 1:1 Mix
* 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
  • Thrombin Clotting Time (TCT)
  • Thrombin Time
  • Thrombin Time, Plasma
  • TT