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18 Cards in this Set
- Front
- Back
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Relate PaCO2 to VCO2, Vt, VD |
PaCO2 = VCO2 / (Vt - VD) |
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Dead space equation |
Vd/Vt = (PaCO2-PeCO2) / PaCO2 = 0.3 |
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Oxygen content equation |
CaO2 = (1.34 × Hb × Sat) + (0.003* Pa02) |
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Oxygen delivery equation |
DO2 = CI × CaCO2 |
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Normal adult P50 |
27 mm Hg |
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Neonatal P50 |
19 mm Hg |
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Adult P90 |
60 mmHg |
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Normal mixed venous oxygen |
35-40 mmHg, 65-75% sat |
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Hgb curve left shift = oxygen affinity of Hgb goes... |
Up! |
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Hgb right shift = hgb affinity for O2 goes... |
Down |
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Hgb O2 dissociation curve right shifters |
1) Increasing 2,3 DPG 2) Increasing T 3) Increasing H+ concentration 4) Increasing CO2 |
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Hgb-O2 dissociation left shifters |
1) Weird Hgb's 2) Decreased 2,3 DPG 3) Decreased T 4) Decreased H+ |
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Determinants of PvO2 |
Cardiac output, oxygen consumption, amount of Hgb, saturation of Hgb |
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SvO2 equation |
SvO2 = SaO2 - (VO2/(CO × Hgb × 13)) |
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VO2 Equation |
VO2 = 13 × Hgb × CO × (SaO2 - SvO2) |
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V/Q = infinity |
Dead space |
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V/Q = zero |
Shunt! |
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Bicarb dose calculation |
Kg × ∆24 × 0.2 |
