MacIntyre et al reported equations to estimate anatomic dead space in the airways, based on work done by Cotes. The authors are from the European Respiratory Society and the American Thoracic Society.
Parameters:
(1) body weight in kilograms
(2) body height in meters
body mass index in kg per square meter =
= (body weight) / ((height)^2)
Body Mass Index
Anatomic Dead Space in mL
< 30
2.2 mL per kg body weight
>= 30
24 * (height in cm) * (height in cm) /4545
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