Sign in →

Browse by Name

  1. A
  2. B
  3. C
  4. D
  5. E
  6. F
  7. G
  8. H
  9. I
  10. J
  11. K
  12. L
  13. M
  14. N
  15. O
  16. P
  17. Q
  18. R
  19. S
  20. T
  21. U
  22. V
  23. W
  24. X
  25. Y
  26. Z
  27. #
 

Mayo Clinic Laboratories

Epic Code LAB91 Methemoglobin

Important Note

Testing must be performed within 4 hours of collection.

To be collected at Hospital Sites only.

Test Name Alias

Methemoglobin Level | CRITCARE METHGB | CRITCARE METHEMOGLOBIN [LAB1230305] 

Interface Order Alias

10432

Collection Instructions

Specimen collection: Whole blood

Container: Heparinized Blood Gas Syringe or Capillary Tube
  • NOTE: Capillary tube is not acceptable at St. Joseph Lab
  • Minimum volume: 0.5 mL in a 1 mL syringe, 175 uL in a capillary tube
  • Collection Instructions:
    • Arterial, venous, and capillary blood specimens are acceptable.
    • Capillary specimens should be limited to pediatric patients and must be hand delivered.
    • Corewell Health Medical Center - Grand Rapids (BW, HDVCH, MHC) and Blodgett (BL)
      • Call Respiratory Satellite Lab and tube to Respiratory
        • Blodgett: 616-382-2122 - Tube Station 411
        • Helen DeVos Children's Hospital (HDVCH): 8 CH – 616-352-6027 - Tube Station 912
        • Butterworth (BW): 5 MHC – 616-352-5756 - Tube Station 881
      • Hand deliver to any Respiratory Satellite Lab.
    • CHW Regional Hospitals: Hand deliver to lab immediately.
    • CHS Hospitals: Hand deliver to lab immediately.

 

Container: Dark Green top (Lithium Heparin) non-gel tube - CHW REGIONAL HOSPITALS OR CHS ONLY
  • Minimum volume: 2 mL in a tube
  • Collection Instructions:
    • Do not spin, separate or expose to air. 
    • Keep tube capped.
    • Hand deliver to lab immediately.

Specimen Stability

Ambient: 4 hours

 

Test Frequency

Available 24 hours, usual TAT 1 day

Reference Range

CHW: 0.0 - 2.5%

CHS: ≤1.5%

 

Laboratory Critical Values Table

 

Performing Department

Respiratory Care (GR Medical Center and Blodgett)
Chemistry (all Regional Hospital sites and CHS)

Performing Department Laboratory Location

CHW:

Corewell Health Butterworth Respiratory, Grand Rapids, MI

Corewell Health HDVCH Respiratory, Grand Rapids, MI

Corewell Health Blodgett Respiratory, East Grand Rapids, MI 

CHW Regional Hospital Sites:

Corewell Health Big Rapids Laboratory, Big Rapids, MI
Corewell Health Gerber Laboratory, Fremont, MI

Corewell Health Greenville Laboratory, Greenville, MI

Corewell Health Ludington Laboratory, Ludington, MI 

Corewell Health Pennock Laboratory, Hastings, MI
Corewell Health Reed City Laboratory, Reed City, MI
Corewell Health Zeeland Laboratory, Zeeland, MI

 

CHS:

Corewell Health Lakeland St. Joseph Laboratory, St. Joseph, MI

Corewell Health Lakeland Niles Laboratory, Niles, MI

Methodology

Methodology is available on request.

 

CPT

83045

83050

CDM Code

3018305001

3018304501

Epic Test ID

1230100930

LOINC

Methemoglobin: 2614-6

Reviewed Date

2/11/2025

Updated Date

5/1/2025 - CHS info added

5/9/2025 - Pennock Laboratory added to performing locations