User's Manual

Table Of Contents
i15 Blood Gas and Chemistry Analysis System User Manual System Overview
- 9 -
Calculated Parameters:
Symbol Description
cH
+
Hydrogen ion concentration
cH
+
(T) Hydrogen ion concentration corrected for entered patient temperature
pH (T) pH value corrected for entered patient temperature
pCO
2
(T) pCO
2
corrected for entered patient temperature
pO
2
(T) pO
2
corrected for entered patient temperature
HCO
3
-
act Bicarbonate ion concentration
HCO
3
-
std Bicarbonate ion concentration normalized to a pCO
2
of 40mmHg
BB (B) Buffer base
BE (B) Base excess (B)
BE (ecf) Base excess (ecf)
ctCO
2
Total carbon dioxide
Ca
++
(7.4) The ionized calcium concentration of blood normalized to pH 7.4
AnGap
An approximation of the difference between measured cations and measured
anions in the sample
tHb (est) An estimation of the hemoglobin contained in the sample
sO
2
(est)
An estimation of hemoglobin oxygen saturation: a ratio of
the amount of
hemoglobin bound to oxygen to the total amount of hemoglobin able to bind
oxygen
pO
2
(A-a) Alveolar-arterial oxygen tension difference
pO
2
(A-a) (T)
Alveolar-arterial oxygen tension difference
corrected for entered patient
temperature
pO
2
(a/A) Arterial-alveolar oxygen tension ratio
pO
2
(a/A) (T) Arterial-alveolar oxygen tension ratio corrected for entered patient temperature