Prediction Of Anesthetic Gas Concentration (Optional) - Dräger Perseus A500 Instructions For Use Manual

For gas mixtures, the respective multiples for N
and anesthetic agents are added according to the
following equation.
exp. Conc. Anesth.
xMAC =
MAC
age corrected
Example
exp. Iso. = 0.65 Vol%; exp. N
age = 32 years
MAC from Iso.: MAC
age corrected
MAC from N
age corrected
xMAC = 0.54 + 0.63 = 1.2
The influence of other drugs (opiates or
intravenous hypnotics) is not considered in the
xMAC calculation.
* 32 years

Prediction of anesthetic gas concentration (optional)

Perseus offers the possibility to display predictive
concentrations of anesthetic agent in the breathing
gas. This requires the Vapor View option and a
Dräger-Vapor 3000 or D-Vapor 3000.
The anesthetic gas prediction is appropriate for
patients with the following data only:
Height: 150 to 200 cm
(59.1 to 78.7 in)
Weight: 40 to 140 kg
(88 to 308 lbs)
Age: 18 to 90 years
The anesthetic gas prediction is not suitable for the
following patients:
– Alcohol dependents
– Greatly overweight patients (BMI >35)
– Patients with ASA ≥IV
– Patients with severe circulatory disorders or a
cardiopulmonary bypass
Instructions for use Perseus A500 SW 1.1n
1
+
Anesth MAC
1
O = 69 %;
2
*
= 1.21 Vol%
*
O: MAC = 110 Vol%
2
O
2
exp. Conc. Anesth.
2
Anesth
age corrected 2
These restrictions in the patient data result from
the scientific models all calculations are based on.
WARNING
Risk of incorrect therapy settings
The anesthetic gas prediction is based on
mathematical models and does not provide
individual patient values.
Do not make therapy decisions based solely
on the displayed anesthetic gas prediction.
Operation
exp. conc. N O
2
+
MAC
age corrected
N O
2
83