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HelpTest Code MET Methemoglobin and Sulfhemoglobin, Blood
Shipping Instructions
Specimen must arrive within 72 hours of collection.
Necessary Information
Patient's age is required.
Specimen Required
Container/Tube: Lavender top (EDTA)
Specimen Volume: Full tube
Additional Information: Patient's age is required.
Forms
If not ordering electronically, complete, print, and send a Benign Hematology Test Request Form (T755) with the specimen.
Useful For
Diagnosing methemoglobinemia and sulfhemoglobinemia
Identifying cyanosis due to other causes, such as congenital heart disease
Profile Information
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| METH | Methemoglobin, B | No | Yes |
| SULF | Sulfhemoglobin, B | No | Yes |
Method Name
Spectrophotometry (SP)
Reporting Name
Methemoglobin and Sulfhemoglobin, BSpecimen Type
Whole Blood EDTASpecimen Minimum Volume
1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Whole Blood EDTA | Refrigerated | 72 hours |
Reject Due To
| Gross hemolysis | Reject |
Reference Values
METHEMOGLOBIN
0-11 months: Not established
≥1 year: 0.0-1.5% of total hemoglobin
SULFHEMOGLOBIN
0-11 months: Not established
≥1 year: 0.0-0.4% of total hemoglobin
Day(s) Performed
Monday through Saturday
Report Available
Same day/1 to 3 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
83050-Methemoglobin
83060-Sulfhemoglobin
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| MET | Methemoglobin and Sulfhemoglobin, B | 98902-0 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 8268 | Methemoglobin, B | 2614-6 |
| 8272 | Sulfhemoglobin, B | 4685-4 |