Test Code METHB Methemoglobin, Blood
Performing Laboratory
ChristianaCare:
- Newark Campus
- Wilmington Campus
Methodology
Co-Oximetry
Specimen Requirements
Container/Tube: The preferred sample type syringes containing dry, electrolyte-balanced heparin. Properly collected and filled heparinized tubes without gel are also acceptable.
Specimen: Full syringe/tube
Collection Instructions: For pediatrics, draw 0.5 mL of blood in a green MICROTAINER®. Immediately place specimen on wet ice.
Note: Label tube with patient’s full name and 1 additional unique patient identifier such as date of birth, medical record number, emergency ID number, date and time of draw, collector’s initials, and type of specimen.
Reference Values
0.4-1.5%
Day(s) Test Set Up
Monday through Sunday
Routine Turnaround Time: 4 hours
STAT Turnaround Time: 30 minutes