Table 1 Summary of formulas
\(Aa-gradient\) | \(\left[Fi{O}_{2} \times \left([Patm-P{H}_{2}O\right)\right]-\left(\frac{PaC{O}_{2}}{RQ}\right)-Pa{O}_{2}\) |
\(VR\) | \(\frac{\left[{\dot{V}}_{E} \times PaC{O}_{2}\right]}{PBW x 100 x 37.5}\) |
\(PBW\) | \(X+\left[0.91 \times \left(H-152.4\right)\right]\) \(X=50 in men, X=45.5 in women\) |
\(\frac{{V}_{D}}{{V}_{T}} HB\) | \(1- \frac{(0.863 x \dot{V}C{O}_{2}}{({\dot{V}}_{E} \times PaC{O}_{2})}\) |
\(\dot{V}C{O}_{2}\) | \(\frac{REE}{\left(\frac{5.616}{RQ}+1.584\right)}\) |
\(REE for males\) | \(66.473+13.752 \times W+5.003 \times H-6.755 \times Y\) |
\(REE for females\) | \(655.096+9.563 \times W+1.850 \times H-4.676\times Y\) |