pulse pressure=
systolic pressure-diastolic pressure
Mean Arterial Pressure(MAP)
(systolic pressure + 2(diastolic pressure))/3
Stroke volume (SV)
EDV-ESV
Cardiac Output (CO)
SV*HR
Cardiac Output (Fick Technique)
VO2/(CaO2-CvO2)
Ejection Fraction
SV/EDV or (EDV-ESV/EDV)
Flow (Q)
A*v
Resistance
deltaP/Q
Systemic Vascular Resistance
((MAP-RAP)/CO)*80
Pulmonary Vascular Resistance
((PApressure-LAP)/CO)*80
Wall Stress
T/h and (T=P*r)
Pressure of dry respiratory air Pz=
Fz*(Patm)
Transrespiratory Pressure (Ptr)=
P(A)-Patm
Transpulmonary Pressure (Pl)
P(A)-Ppl
Transairway Pressure (Pta)
Paw-Ppl
Dead space volume (VD)=
(P(ACO2)-P(ECO2)/P(ACO2))*V(T)
Alveolar Ventilation (VA L/min)=
(Vco2 (ml/min) * .863)/PAco2 (mmHg)
delta P
Pinside-Poutside
delta P
V(airflow)
R or Q
R
J (Fick's Law of Diffusion)
(D * A)/h
Pressure of wet air trachea (Pz)=
Fz * (Patm-Ph2o)
Delta P (bernouille eq simplified)
4v^2
Minute Ventilation Vt=
V(T) * fr
Alveolar Ventilation V(A)=
(V(T)-V(D)) *fr
V(D)/V(T)=
1-(Peco2-pAco2) paco2 can be substituted for pAco2
Pressure across chest wall (Pw)=
Pip-Pb(atm)
Respiratory Quotient (RQ)
Vco2/Vo2
PAo2=
(Fio2*(Pb-Ph2o))-(PAco2/RQ)
PAo2 clinical form
(150)-(PAco2*1.25)
(A-a)Do2=
PAo2-Pao2
Cao2=
(.003
Pao2) + (1.34
Hgb * (Sa02/100))