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Test Code PTC Prothrombin Time (PT), Plasma


Necessary Information


Heparin or Coumadin therapy should be noted.



Specimen Required


Only orderable as part of a coagulation consultation. For more information see 1 of the following:

LUPPR / Lupus Anticoagulant Profile

BDIAL / Bleeding Diathesis Profile

THRMP / Thrombophilia Profile

PROCT / Prolonged Clot Time Profile


Useful For

Screening to identify a deficiency of 1 or more of the clotting factors of the extrinsic coagulation system (I, II, V, VII, X) due to hereditary deficiency or acquired conditions such as liver disease, vitamin K deficiency, or a specific factor inhibitor

 

Monitoring patients on oral anticoagulant therapy to maintain a patient in a safe therapeutic range

Method Name

Optical Clot-Based

Reporting Name

Prothrombin Time (PT), P

Specimen Type

Plasma Na Cit

Specimen Stability Information

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

Reject Due To

Gross hemolysis Reject
Gross lipemia Reject
Gross icterus Reject

Reference Values

Only orderable as part of a coagulation consultation. For more information see 1 of the following:

LUPPR / Lupus Anticoagulant Profile

BDIAL / Bleeding Diathesis Profile

THRMP / Thrombophilia Profile

PROCT / Prolonged Clot Time Profile 

 

An interpretive report will be provided.

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test has been cleared or approved by the U.S. Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information

85610

LOINC Code Information

Test ID Test Order Name Order LOINC Value
PTC Prothrombin Time (PT), P 5902-2

 

Result ID Test Result Name Result LOINC Value
PR_TI Prothrombin Time (PT), P 5902-2
INR2 INR 6301-6