Test Overview

Test Methodology

Kinetic Spectrophotometry (SP)

Test Usage

Evaluation of individuals with Coombs-negative nonspherocytic hemolytic anemia.

Reference Range*

8.8 - 13.4 U/g hemoglobin. Abnormal values are usually 0 - 20% of normal mean.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Limitations

In African-Americans with the Gd A-variant, normal values may be measured for several weeks following hemolysis. This is not the case with other Gd variants that predisopose to hemolysis.

Test Details

Days Test Performed

Monday - Sunday

Analytic Time

2 - 5 days

Soft Order Code


MiChart Code

G-6-PD, Erythrocytes



Glucose-6-Phosphate Dehydrogenase Deficiency
G6PD, Quantitative
Glucose-6-Phosphate Dehydrogenase, Quantitative

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Laboratory Reference

Mayo G6PD (8368)

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Specimen Requirements

Offsite Collection Instructions

Collect specimen in a yellow top (ACD) solution B tube preferred; Lav top (EDTA) or ACD solution A are acceptable. Send 6.0 mL of intact whole blood. Refrigerate. Do not transfer blood to other containers.


ACD Solution A

Normal Volume

6 mL ACD (solution B) whole blood preferred; Lav top (EDTA) or ACD solution A are acceptable

Minimum Volume

1 mL ACD (solution B) whole blood preferred; Lav top (EDTA) or ACD solution A are acceptable

Additional Information

Test sent to Mayo Medical Laboratories.

Billing Information

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