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Test Code LAB9792 Methemoglobin, Venous, Blood

Performing Laboratory

Barnes-Jewish Hospital

Methodology

Potentiometric and Amperometric

Literature Reference:

Reference manual: ABL 800 FLEX Series.  Radiometer America, Bronshoj Denmark, 2009.

Specimen Requirements

Hospital Patient:

Specimen Type: Whole blood, venous heparinized

Container/Tube: Sims-Protex blood gas syringe

Speciment Volume: Full tube

 

Additional Information:

1. Send capped syringe (no needle attached) to the laboratory.

2. If sending by dispatch, place the labeled syringe in a container of wet ice.  Specimen must be received in the laboratory within 60 minutes of draw.

 

Non Hospital Patient:

Call Barnes-Jewish Hospital Laboratory Customer Service at 314-362-1470 prior to collection to schedule a STAT pick-up.

 

Specimen Type: Whole blood, venous heparinized

Container/Tube: Sims-Protex blood gas syringe

Speciment Volume: Full tube

 

Additional Information:

1. Send capped syringe (no needle attached) to the laboratory.

2. If sending by dispatch, place the labeled syringe in a container of wet ice.  Specimen must be received in the laboratory within 60 minutes of draw.

Day(s) Test Set Up

Monday through Sunday

Turnaround Time:

STAT: 15 minutes after receipt in laboratory

Routine: Not Available

Test Classification and CPT Coding

83050

Reference Values

METHEMOGLOBIN

<2%

Critical result (automatic call-back): ≥ 5.0 %

Additional Information

For BJH Laboratory Use Only:

Alternate Tube Types:

Mint Green top tube

Dark Green top tube

Analyte Stability:

See Analyte Stability Chart under General Information for a complete list.

 

Laboratory Processing Instructions:

Test performed in BJH Core Lab.  Deliver to blood gas workstation immediately.

Speciment Transport Temperature

Ambient

LOINC Code Information

2617-9