Lab Test

Sulfhemoglobin, Whole Blood

Test Codes

Mayo: MET, EPIC: LAB7608, Beaker:

Specimen Collection Criteria

Collect: One Lavender-top EDTA tube. (Minimum: 1.0 mL)

Specimens must only be collected Monday – Thursday.

Physician Office/Draw Specimen Preparation

Do not centrifuge. Maintain whole blood refrigerated (2-8°C or 36-46°F) prior to transport.

Preparation for Courier Transport

Transport: 4.0 mL whole blood, refrigerated (2-8°C or 36-46°F). (Minimum: 1.0 mL)

Rejection Criteria

Specimens not collected or processed as indicated.

In-Lab Processing

Do not centrifuge. Maintain whole blood at refrigerated (2-8°C or 36-46°F) prior to transport.

Transport: 4.0 mL whole blood, refrigerated (2-8°C or 36-46°F). (Minimum: 1.0 mL)

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): unacceptable
Refrigerated (2-8°C or 36-46°F): 72 hours
Frozen (-20°C/-4°F or below): unacceptable

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Send Outs Laboratory with any questions.

Laboratory

Sent to Mayo Clinic Laboratories in Rochester, MN.

Performed

Monday – Saturday
Results available in 2-4 days.

Reference Range

By report.

Test Methodology

Dynamic Reaction Cell-Inductively Coupled Plasma-Mass Spectrometry (DRC-ICP-MS).

Interpretation

By report.

Clinical Utility

  • Diagnosing methemoglobinemia and sulfhemoglobinemia
  • Identifying cyanosis due to other causes, such as congenital heart disease

CPT Codes

83050, 83060.
LOINC:  4685-4

Contacts

Last Updated

7/16/2021

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