GAS-EXCHANGE
LUNG MODEL
CREDITS
EQUATIONS
INSTRUCTIONS
ICU SIMULATOR
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INPUT VARIABLES
Tidal Volume (mL)
Respiratory exchange ratio
Dead Space (mL)
Hemoglobin (g/dL)
Respiratory Rate (breaths/min)
Cardiac output (L/min)
Inspired O2 (as decimal)
Shunt fraction (as decimal)
Altitude (m)
O2 diffusing capacity (mL/min/mmHg)
O2 Uptake (mL/min)
CALCULATE
RESET
GENERAL
Minute Vent.
Inspired PO2
Alveolar Vent.
Alveolar PCO2
Alveolar PO2
Physiol. VD/VT
Physiol. QS/QT
MEASUREMENT CONDITIONS:
Baro. Pressure
ARTERIAL
pH
PCO2
PO2
O2 Saturation
O2 Content
CO2 Content
A-a O2 Diff.
MIXED VENOUS
pH
PCO2
PO2
O2 Saturation
O2 Content
CO2 Content
END CAPILLARY
pH
PCO2
PO2
O2 Saturation
O2 Content
CO2 Content
CO2 Output
O2 Uptake
R
V/Q MISMATCH >>
Select VQ Mistmatch:
No V/Q Mismatch
V/Q Mismatch Balanced Example
V/Q Mismatch Example 2
V/Q Mismatch Example 3
Custom V/Q Mismatch
VQ Details
% in low V/Q compartment
% in high V/Q compartment
Ventilation (VA)
Perfusion (Qc)
Resulting Ratios
VA/Qc
For Custom V/Q Mismatch:
Enter % of total ventilation (VA) that goes to the low V/Q compartment:
Enter % of total perfusion (Qc) that goes to the low V/Q compartment:
CALCULATE
RESET
