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Test Code TPIC Triosephosphate Isomerase Enzyme Activity, Blood


Specimen Required


Only available as part of a profile. For more information see:

-HAEV1 / Hemolytic Anemia Evaluation, Blood

-EEEV1 / Red Blood Cell (RBC) Enzyme Evaluation, Blood


Useful For

Evaluating individuals with chronic nonspherocytic hemolytic anemia

 

Evaluating individuals with early onset neurologic impairment

 

Genetic counseling for families with triosephosphate isomerase deficiency

Method Name

Only available as part of a profile. For more information see:

-HAEV1 / Hemolytic Anemia Evaluation, Blood

-EEEV1 / Red Blood Cell (RBC) Enzyme Evaluation, Blood

 

Kinetic Spectrophotometry

Reporting Name

Triosephosphate Isomerase, B

Specimen Type

Whole Blood ACD-B

Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Whole Blood ACD-B Refrigerated 20 days

Reject Due To

Gross hemolysis Reject

Reference Values

Only available as part of a profile. For more information see:

-HAEV1 / Hemolytic Anemia Evaluation, Blood

-EEEV1 / Red Blood Cell (RBC) Enzyme Evaluation, Blood

 

≥12 months of age: 1033-1363 U/g Hb

Reference values have not been established for patients who are younger than 12 months of age.

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

82657

LOINC Code Information

Test ID Test Order Name Order LOINC Value
TPIC Triosephosphate Isomerase, B 44054-5

 

Result ID Test Result Name Result LOINC Value
TPICL Triosephosphate Isomerase, B 44054-5

Day(s) Performed

Weekly, Varies

Report Available

5 days