Philips Expression MR400 - CO2 Waveform and VS Box

9‐22MonitoringAgentsandGases(AGENTOption) ExpressionMR400InstructionsforUse
CO2 Waveform and VS Box
TheCO
2
measurementisdisplayedasawaveformintheVStraceareaofthescreenandas
numericinformationintheCO2VSbox.Otherdata,includingCO2‐relatedalarminformation,are
alsoprovidedinthisareaofthescreen.(CO2[RESP]informationcanbedisplayedintheCO2VS
box
orintheRESPVSbox,asdetailedbelow.)
4 # MAC Is the MAC value that each individual gas contributes to the total MAC value,
calculated by C/M, where:
C = the current concentration of the given gas
M = the 1 MAC value for the given gas
5 TOTAL MACs Is the total MAC value, which is equal to the sum of the values in the # MAC
column, calculated using the following formula:
TOTAL MAC = EtN
2
O / (1 MAC N
2
O) +
(Et 1
st
Agt) / (1 MAC 1
st
Agt) +
(Et 2
nd
Agt) / (2 MAC 2
nd
Agt)
Where:
•EtN
2
O = The current value of end-tidal nitrous oxide
•1 MAC N
2
O = The 1 MAC value for nitrous oxide
•Et 1
st
Agt = The current concentration of the primary agent gas
•Et 2
nd
Agt = The current concentration of the secondary agent gas
•1 MAC 1
st
Agt = The 1 MAC value for the current primary agent gas
•2 MAC 2
nd
Agt = The 2 MAC value for the current secondary agent gas
Item Name Definition
7
1
3
4
5
6
11
8
9
10
2
12