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Rapidlab 1200 Operator's Guide: System Overview and Intended Use
If FO
2
saturation [O
O
CT = (1.39 × ctHb × O
2
If ctHb is not measured or entered, O
NOTE:
value for oxygen saturation in further calculations, such as oxygen content and
shunt fraction (Q
equivalent to fractional oxyhemoglobin.
Oxygen Content of Hemoglobin
The oxygen content of hemoglobin, ctO
bound to hemoglobin.
oxygen saturation and oxygen capacity, is a useful parameter for determining the
amount of oxygen in the blood that is actually available to the tissues and for
determining the effectiveness of oxygen therapy.
The oxygen content of hemoglobin for a sample when pO
determined using the following equation:
ctO
(Hb) = (OBF × tHb × FO
2
where OBF is the O
whatever value is entered as the default value in Setup. FO
format.
Oxygen Capacity of Hemoglobin
The oxygen capacity of hemoglobin (BO
that the hemoglobin in a given quantity of blood can carry. This value represents
the potential of hemoglobin to bind to oxygen and includes all the oxygen that can
be bound to the available hemoglobin.
with hemoglobin oxygen saturation and oxygen content, is a useful parameter for
determining the amount of oxygen in the blood that is actually available to the
tissues and for determining the effectiveness of oxygen therapy.
The oxygen capacity of hemoglobin is determined using the following equation:
BO
= OBF x tHb x (FO
2
where OBF is the O
whatever value is entered as the default value in Setup. FO
decimal format.
Hb is unavailable, oxygen content is derived from estimated oxygen
SAT(est)] according to the following equation:
2
SAT(est)/100)+ (0.00314 × pO
2
Clinically significant errors can result from incorporating an estimated
/Q
), or by assuming that the value obtained [O
sp
t
19
The oxygen content of hemoglobin, with hemoglobin
binding factor. The system uses the default value of 1.39, or
2
Hb + FHHb)
2
binding factor. The system uses the default value of 1.39, or
2
CT is not displayed or printed.
2
19
(Hb), is the volume of oxygen actually
2
Hb)
2
) is the maximum amount of oxygen
2
19
The oxygen capacity of hemoglobin,
1-57
)
2
SAT(est)] is
2
is not available is
2
Hb is in decimal
2
Hb + FHHb are in
2
02087462 Rev. V
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