Preferred Label : Gas & CO panel:-:Pt:Bld:Qn:;
LOINC status : ACTIVE;
LOINC display name : Gas and Carbon monoxide panel (Bld);
LOINC long common name : Gas and Carbon monoxide panel - Blood;
LOINC common name : Gas panel W Carbon monoxide in blood;
LOINC short name : Gas CO Pnl Bld;
LOINC description : Knowing the concentration of inspired O2 is important for interpreting PO2 results.
Inspired O2 can be recorded in two ways: 1) as percent of O2 delivered to the patient
(Venturi mask, re-breather mask, or ventilator); or 2) as liters of oxygen per minute
(nasal cannula). This panel includes terms for recording the inspired O2 in either
fashion. But because only one will apply and labs do not always receive this information
they are designated as optional. The term oxygen saturation is often used to refer
to two distinctly different quantities, hemoglobin oxygen saturation (recommended
symbol sO2) and fractional oxyhemoglobin (recommended symbol FO2Hb). The former
is sometimes called functional oxygen saturation and the latter, fractional oxygen
saturation Hemoglobin oxygen saturation the amount of oxyhemoglobin expressed as
a percent of the hemoglobin able to bind oxygen, i.e. oxyhemoglobin (O2Hb) deoxyhemoglobin
(HHb). sO2 100 x O2Hb/ (O2Hb HHb) Fractional oxyhemoglobin the amount of oxyhemoglobin
expressed as a percent of the total hemoglobin, where tHb O2Hb HHb [COHb MetHb
SulfHb]. Note that COHb, MetHb, and SulfHb, cannot carry oxygen and are thus called
dyshemoglobins. FO2Hb O2Hb/tHb Gas machines that can measure carbon monoxide, could,
in principle, also report FO2Hb, and we had assumed that they would. However, at least
some machines that do measure COHb and MetHb provide no option for reporting FO2Hb,
and report only sO2. When mapping blood gas panels that report COHb% and also report
FO2Hb, map that term to the LOINC term with the component of Oxyhemoglobin/Total hemoglobin.
If such an instrument reports only oxygen saturation, verify with the lab that they
are really reporting a functional O2 sat (sO2) and not the fractional oxyhemoglobin,
because the two are not always correctly labeled. If it is sO2 then map it to the
LOINC term with a component of Oxygen saturation. When you are mapping data from a
simpler Blood gas instrument (one that can read fewer than 4 wave lengths), then the
O2 saturation will likely be an sO2. So also map that variable to the LOINC with a
component of Oxygen saturation. (Source: McD derived from Gill and McD- 2009 09);
LOINC Class : CHEM-gas;
Origin ID : 24343-6;
UMLS CUI : C0881617;
Has component
- Has system
- Has time aspect
- Panel of LOINC codes
- Semantic type(s)
