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HelpTest Code Carboxyhemoglobin Carboxyhemoglobin
Abbrev
COHB
Storage Temperature
R (2-8ºC)
ASTM/HL7/SDF 1
SQ=HFCOHB
EPIC=LAB56
Instrument/Location
RapidPoint 500
Specimen Requirements
Lithium heparin syringe free of air. Vacutainer tubes unacceptable.
Specimen Transport Temperature
Room temperature if received within 30 minutes from collection
Refrigerated if received after 30 minutes from collection
Reference Values
0-2.9 %
Critical Values: >20%
Specimen stability/Retention time
30 minutes at room temperature
72 hours refrigerated