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Test Code METHB Methemoglobin, Blood

Performing Laboratory

ChristianaCare:

  • Newark Campus
  • Wilmington Campus

Methodology

Co-Oximetry

Specimen Requirements

Container/Tube:  3.0-mL lavender-top (EDTA) tube

Specimen:  Full tube
Collection Instructions:  For pediatrics, draw 0.5 mL of blood in a lavender-top (EDTA) 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