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Thrombin Time with Reflex to Thrombin Time 1:1 Mix
0030260
Ordering Recommendation
Mnemonic
TT
Methodology
Electromagnetic Mechanical Clot Detection
Performed
Sun-Sat
Reported
1-2 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
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. EDTA plasma, clotted or hemolyzed specimens.  
Remarks
 
Stability
Ambient: 2 hours; Refrigerated: Unacceptable; Frozen: 2 weeks  
Reference Interval

Test Number
Components
Reference Interval
 Thrombin Time14.7-19.5 seconds
 Thrombin Time 1:1 Mix14.7-19.5 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 NameLOINC
0030270Thrombin Time3243-3
0030275Thrombin Time, 1:1 Mix33525-7
* 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.
Aliases
  • Thrombin Clotting Time (TCT)
  • Thrombin Time
  • Thrombin Time, Plasma
  • TT