Wk 5 Formulas + values

O2 HB Carries

1.34 mL

O2 Dissolves Per 1 mm Hg of PaO2:

0.003 mL

Hb -Men/women?

MEN: 14-16 g/dL

WOMEN: 12-15 g/dL

CvO2 ("perfect values")

15.2 mL/dL

C(a-v)O2:

5 mL/dL

P(A-a)O2 (on Room Air)

7-15 mmHg

(or <20 mmHg acceptable difference)

P(A-a)O2 on FIO2 50%

<50 mmHg

DO2: _______ of O2/min

1000 mL of O2/min

VO2: ____mL/min

250 mL/min

Pulmonary Shunt Percentage:

3-5% (<10% acceptable)

P50: __mmHg

27 mmHg

RQ: ____ PH2O____ Patm:____

RQ: 0.8

PH2O: 47

Patm: 760

O2 Dissolved in Plasma:

PaO2 x 0.003

O2 Bound To Hemoglobin:

1.34 x Hb x SaO2

CaO2:

(1.34 x Hb x SaO2) + (0.003 x PaO2)

CvO2:

(1.34 x Hb x SvO2) + (0.003 x PvO2)

PAO2:

FiO2(PB - PH2O) - PaCO2/RQ

P/F Ratio:

PaO2/FiO2

Formula

DO2:

CO x CaO2 x 10 CO x CaO2 x 10

Formula

VO2:

CO x C(a-v)O2 x 10

P/F Values: Norm, Mild, Mod., Severe

> 400 = norm

300-399 = mild

200-299 = moderate (acute lung injury)

<200 = severe (ARDS)