Card Set Information
What is the equation for Raw?
Pip - Plat / Flow in cmh20/L/sec
What is the equation for arterial vs alveoli pressure?
P(A-a)O2 = PAO2 - PaO2 mmHg
What is the equation for arterial mixed venous O2 content difference?
C(a-v-O2 = CaO2 - CvO2 in volume %
What is the cardiac output equation?
QT = VO2 / (C(a-v) 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 %