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11 Cards in this Set

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formula: DO2
CaO2 × cardiac output × 10
formula: alveolar air
(PB - PH2O)FIO2 - PaCO2 / 0.8 (if FiO2>.60)
formula: CaO2 (arterial oxygen content)
(Hb × 1.34 × SaO2) + (PaO2 × 0.003)
formula: Ve (minute ventilation)
F × tidal volume
how is optimal PEEP determined in terms of FiO2 and PaO2?
PEEP that improves oxygenation without depressing cardiac output
what tidal volume would you set for a patient with ARDS?
4 to 8 mL/kg ideal body weight (IBW)
what tidal volume would you set for a patient with COPD?
6 to 10 mL/kg IBW
what tidal volume would you set for a patient with normal lungs?
6 to 10 mL/kg IBW
what effect does minute ventilation have on PaCO2?
An inverse relationship, so increased minute volume decreases CO2.
Where is gas distributed by a normal spontaneous breath?
dependent and peripheral portions of the lung
where is gas distributed by a positive pressure breath?
nondependent lung zones