MEVP - Specimen: Methemoglobinemia Evaluation

Test Catalog

Test Name

Test ID: MEVP    
Methemoglobinemia Evaluation

Testing Algorithm Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

This is a consultative evaluation in which the case will be evaluated at Mayo Medical Laboratories, the appropriate tests performed at an additional charge, and the results interpreted.

Specimen Type Describes the specimen type validated for testing

Whole Blood ACD-B
Whole Blood EDTA

Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.

Specimen must arrive within 72 hours of draw.


Container/Tube: Lavender top (EDTA) and yellow top (ACD [Solution B])

Specimen Volume:

EDTA: Two 4-mL tubes

ACD: One 6-mL tube

Collection Instructions: Do not transfer blood to other containers.

Additional Information:

1. Patient's age and sex are required.

2. Include recent transfusion information.


1. New York Clients-Informed consent is required. Please document on the request form or electronic order that a copy is on file. An Informed Consent for Genetic Testing (T576) is available in Special Instructions.

2. Thalassemia/Hemoglobinopathy Patient Information (T358) is available in Special Instructions.

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

Specimen Minimum Volume The amount of sample necessary to provide a clinically relevant result as determined by the Laboratory.

EDTA: 3 mL/ACD-B: 2.7 mL

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected


Mild OK; Gross reject







Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperatures are also included.

Specimen TypeTemperatureTime
Whole Blood ACD-BRefrigerated72 hours
Whole Blood EDTARefrigerated72 hours