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Test ID: MEVP    
Methemoglobinemia Evaluation

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Specimen Type Describes the specimen type needed 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.

Forms:

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 (Supply T576) is available in Special Instructions.

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

3. If not ordering electronically, please submit a Hematopathology/Molecular Oncology Request Form (Supply T241) with the specimen.

Specimen Minimum Volume Defines the amount of specimen required to perform an assay once, including instrument and container dead space. Submitting the minimum specimen volume makes it impossible to repeat the test or perform confirmatory or perform reflex testing. In some situations, a minimum specimen volume may result in a QNS (quantity not sufficient) result, requiring a second specimen to be collected.

EDTA: 3 mL/ACD-B: 2.7 mL

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

Hemolysis

Mild OK; Gross reject

Lipemia

NA

Icterus

NA

Other

NA

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

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