From: Laboratory Manual of the Technic of Basal Metabolic Rate Determinations, Walter Meredith Boothby, Irene Sandiford, published 1920 W.B. Saunders. Page 59
From: Laboratory Manual of the Technic of Basal Metabolic Rate Determinations, Walter Meredith Boothby, Irene Sandiford, published 1920 W.B. Saunders. Page 58
From: Laboratory Manual of the Technic of Basal Metabolic Rate Determinations, Walter Meredith Boothby, Irene Sandiford, published 1920 W.B. Saunders. Page 57
From Wilmore JH, Davis JA, Norton AC. An automated system for assessing metabolic and respiratory function during exercise. J Appl Physiol 1976; 40(6): 619-624.
Haldane device based in Journal of Physiology 1895 to measure PCO2 (using method of re-inhalation Cambell-Howell). Photo generously provided by Felip Burgos, MSC, RPFT, RN. Barcelona, Spain.
The diverse, quirky and mostly forgotten history of Pulmonary Function testing