RT230
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What is the equation for Raw?
Pip  Plat / Flow in cmh20/L/sec

What is the equation for arterial vs alveoli pressure?
P(Aa)O2 = PAO2  PaO2 mmHg

What is the equation for arterial mixed venous O2 content difference?
C(avO2 = CaO2  CvO2 in volume %

What is the cardiac output equation?
QT = VO2 / (C(av) O2 x 10) in L/min

What is the equation for dynamic compliance?
Cdyn = Vt / pip  peep mL/cmh20

What is the equation for static compliance?
Cstat = Vt / plat  peep mL/cmh20

What is the deadspace to tidal volume ratio?
Vd / Vt = PaCO2  PeCO2 / PaCO2 in %

What is the I:E ratio?
Ti / Ti : Te / Ti

What is the alveolar ventilation equation?
Va = (Vt  Vd) x RR in liters

What is the arterial content equation?
CaO2 = (Hb x 1.34 x SaO2) + (PaCO2 x 0.003) in volume %

What is the equation for a new RR?
current RR x current PaCO2 / desired PaCO2 B/min

What is the new RR for a rate that has already been set?
(Set RR x Current PaCO2) x set Vt / Desired PaCO2 x new Vt in B/min

What is the shunt equation?
Qs / Qt = CcO2  CaO2 / CcO2  CvO2 in %