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Test Code RTSC Reptilase Time, Plasma


Specimen Required


See Coagulation Guidelines for Specimen Handling and Processing in Special Instructions.

 

Specimen Type: Platelet-poor plasma

Collection Container/Tube: Light-blue top (citrate)

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Collection Instructions:

1.Centrifuge, remove plasma, and centrifuge plasma again.

2. Freeze plasma immediately (no longer than 4 hours after collection) at -20° C or, ideally ≤-40° C.

Additional Information:

1. Double-centrifuged specimen is critical for accurate results as platelet contamination may cause spurious results.

2. Each coagulation assay requested should have its own vial.


Useful For

Evaluation of a prolonged thrombin time (TT): It is mainly used to confirm or exclude the presence of heparin in the specimen or specimen type

 

Evaluating hypofibrinogenemia or dysfibrinogenemia in conjunction with the TT and fibrinogen assay

Method Name

Optical Clot-Based

Reporting Name

Reptilase Time, P

Specimen Type

Plasma Na Cit

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Plasma Na Cit Frozen 14 days

Reference Values

14.0-23.9 seconds

Day(s) and Time(s) Performed

Monday through Friday

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test has been modified from the manufacturer's instructions. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information

85635

LOINC Code Information

Test ID Test Order Name Order LOINC Value
RTSC Reptilase Time, P 6683-7

 

Result ID Test Result Name Result LOINC Value
RTSC Reptilase Time, P 6683-7

Forms

If not ordering electronically, complete, print, and send a Coagulation Test Request (T753) with the specimen.