Methemoglobin

Alphabetical Test listing

Methemoglobin-178

Test name:

Methemoglobin

Test number:

178

Excellian order number:

83050.0

Abbreviation:

MTH

Specimen type:

Lithium heparin (Li hep) whole blood

Collection container:

Dk green Lithium heparin (Li hep), no gel

Minimum volume:

1.0 mL

Collection instructions:

Immediately following collection, mix sample thoroughly by gently inverting 8 - 10, times to prevent clotting

Processing instructions:

Do not spin, and do not open

Transport container:

Dk green Lithium heparin (Li hep)

Alternate collection container:

Lt green plasma separator (PST)

Blood gas syringe

Alternate collection instructions:

Lt green plasma separator (PST):

Immediately following collection, mix sample thoroughly by gently inverting 8 - 10, times to prevent clotting

Alternate processing instructions:

Do not open and do not spin

Alternate transport container:

Lt green plasma separator (PST)

Blood gas syringe (no needles)

Transport and stability:

Refrigerated (preferred) - 5 days

Ambient - 4 hours

Reason for rejection:

Improper labels (unlabeled or mislabeled)
Hemolysis (some procedures)
Improper anticoagulant or ratio
- EDTA whole blood is not acceptable
Delay in transport
Improper storage temperature affecting results
Improper container
- Li Heparin PST tubes are not acceptable if spun
Leaking container resulting in compromised specimen
Quantity not sufficient (QNS)

Performing lab:

AHL - Chemistry: C

Days set up:

Daily

TAT:

1 day

Method:

Spectrophotometric

Reference ranges:

0.0 - 1.5 %

CPT codes:

83050

Date created:

11/30/2001

Revised date:

02/18/2020

Review date:

12/02/2021