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Test ID BLOD0672 Thrombin Time

Useful For

Thrombin Time is a screening test for normal levels of functional fibrogen.

Specimen Type/Requirements

Blue top (Sodium Citrate) - Plasma, Double Spun Platelet Poor

 

See Coagulation Testing and Platelet Poor Plasma Preparation

 

This test requires its own frozen aliquot.  Frozen plasma can only be thawed once.

 

The 3.2% Sodium Citrate tube must be filled to appropriate volume to acquire the 9:1 blood to anticoagulant ratio that is critical for valid results.

 

Test is affected by hemolysis.  Test is not affected by lipemia.

Specimen Volume

 Preferred Volume     2.0 mL   
 Minimum Volume     0.7 mL   

 

Stability/Transport

 Room Temperature     8 hours     
 Refrigerated     Not Acceptable     
 Frozen     1 month     Preferred for transport   

If testing is not performed within 8 hours, freeze a platelet poor plasma aliquot.

Performed Test Frequency

Monday through Sunday

Methodology

Mechanical

Performing Lab

Sanford Laboratories Sioux Falls

CPT

85670