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Test Code NEEVP Neurologic Enzyme Evaluation

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Useful For

Evaluating patients who have a hemolytic process that is associated with some neurologic findings

Method Name

NEEV: Consultative Interpretation

GLTI, PFK, PGK, TPI, P5NT: Kinetic Spectrophotometry (KS)

Reporting Name

Neurologic Enzyme Evaluation

Specimen Type

Whole Blood ACD-B

Specimen Required

Container/Tube: Yellow top (ACD)

Specimen Volume: 10 mL

Collection Instructions: Do not transfer blood to other containers.

Specimen Minimum Volume

5 mL

Specimen Stability Information

Specimen Type Temperature Time
Whole Blood ACD-B Refrigerated 8 days

Reject Due To


Mild OK; Gross reject








Reference Values

Definitive results and an interpretive report will be provided.


Definitive results and an interpretive report will be provided.


Significant abnormal values typically are 25% of values obtained for a normal individual.

Day(s) and Time(s) Performed

Monday through Friday; Varies

Analytic Time

10 days (not reported Saturday or Sunday)

Specimen Retention Time

14 days

Test Classification

See Individual Test IDs

CPT Code Information

82657-RBC enzymes


83915-Pyrimidine 5’ Nucleotidase

LOINC Code Information

Test ID Test Order Name Order LOINC Value
NEEVP Neurologic Enzyme Evaluation In Process


Result ID Test Result Name Result LOINC Value
2734 Pyrimidine 5' Nucleotidase, B 2902-5
2635 Glutathione, B 2383-8
PFK_ Phosphofructokinase, RBC 72664-6
PGK_ Phosphoglycerate Kinase, B 44053-7
TPI_ Triosephosphate Isomerase, B 44054-5
13083 Neurologic Enzyme Interpretation 59466-3

Profile Information

Test ID Reporting Name Available Separately Always Performed
NEEV Neurologic Enzyme Interpretation No Yes
GLTI Glutathione, B No Yes
PFK Phosphofructokinase, RBC No Yes
PGK Phosphoglycerate Kinase, B No Yes
TPI Triosephosphate Isomerase, B No Yes
P5NT Pyrimidine 5' Nucleotidase, B Yes Yes


1. Metabolic Hematology Patient Information (T810) is available in Special Instructions

2. If not ordering electronically, complete, print, and send a Benign Hematology Test Request Form (T755) with the specimen.