Test directory: Methemoglobin

Ordering Code6531
Test NameMethemoglobin
Preferred SpecimenWhole Blood
Preferred ContainerHeparinized Syringe
Other Specimen/ContainerWhole Blood in Lithium Heparin (Green)
Optimum Volume0.5 mL
Collection InstructionsIf using a Heparinzied Syringe: Remove needle and place a luer tip cap on the syringe.
Handling InstructionsHeparinized Syringe: Place tightly capped syringe (needle removed) on wet ice and forward to the QMC Punchbowl Lab within 2 hours of collection
Whole Blood in Lithium Heparin (Green): Deliver whole blood in Lithium Heparin tube (Green), tightly capped, on wet ice, within 3 days of collection.
Transport RequirementsOahu: Refrigerated on Wet Ice
Airline: Refrigerated on Wet Ice
Specimen StabilityRefrigerated (On Ice):
Heparinized Syringe: 2 Hours (tightly capped)
Lithium Heparin Tube: 3 Days (tightly capped)
Rejection CriteriaSpecimen older than stability limits, Specimen uncapped,
Ambient, Frozen, Hemolyzed, Specimen not on wet ice
Avail. StatYES
Analytic Time1 Day

Reference range(s)

ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info