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HelpTest Code LAB9354 Methemoglobin, Pulmonary Artery
Performing Laboratory
Barnes-Jewish Hospital Laboratory
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, pulmonary arterial heparinized
Container/Tube: Sims-Portex blood gas syringe
Specimen Volume: Full tube
Additional Information:
1. Send capped syringe (no needle attached) to the laboratory.
2. If sending by dispatch, place labeled syringe in a container with 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, pulmonary arterial heparinized
Container/Tube: Sims-Portex blood gas syringe
Specimen Volume: Full tube
Additional Information:
1. Send capped syringe (no needle attached) to the laboratory.
2. If sending by courier, place labeled syringe in a container with 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
No Reference Range
Critical result (automatic call-back): ≥5.0%
Specimen Transport Temperature
Ambient
Additional Information
For BJH Laboratory Use Only
Alternate Tube Types:
Mint Green top tube
Dark Green top tube
Laboratory Processing Instructions:
Test performed in BJH Core Lab. Deliver to the blood gas workstation immediately.
Special Instructions
See Analyte Stability Chart under General Information for a complete list.
LOINC Code Information
| Name | LOINC Code |
| Methemoglobin | 2615-3 |