Glossary Of Abbreviation Equivalents - Accriva Diagnostic AVOXimeter 4000 Operator's Manual

The measured values are used to calculate total hemoglobin (tHb) and percent oxyhemoglobin
saturation [%02Hb] of the sample, using the fractional method described below:
(tHb)
%O Hb
2
Oxygen content [O Ct] of the sample is then calculated:
2
O Ct
2
where 1.39 is the amount of oxygen assumed to be carried by one gram of oxygenated
hemoglobin (Hϋfner's Number). Depending on your facility protocols, the Hϋfner's Number stored
in the AVOXimeter 4000 can be set at any value in the range of 1.30 to 1.39 (see page 30).

Glossary of Abbreviation Equivalents

In some cases, the display screen of the AVOXimeter 4000 does not show the most commonly
used format for a specific constituent's abbreviation. Below is a glossary of abbreviation
equivalents to ensure that users fully understand each reading on the AVOXimeter 4000 display.
Constituent
Total Hemoglobin
Fractional O Saturation
2
Oxygen Content
Carboxyhemoglobin
Methemoglobin
Oxyhemoglobin Saturation
(O Hb) + (HHb) + (MetHb) + (COHb)
=
2
(O Hb) x 100
2
=
(tHb)
1.39 x tHb x % O
=
100
AVOXimeter 4000
Display
tHb
sO
2
O Ct
2
COHb
MetHb
%O Hb
2
AVOXimeter 4000 Operator's Manual
Hb
2
Conventional
Equivalent
tHb
SO
2
O Ct
2
COHb
MetHb
%O Hb
2
7