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(Chest. 1967;52:478-480.)
© 1967 American College of Chest Physicians

Evaluation of a New Compact Spirometer for Determining Vital Capacity

Frederick L. Jones Jr. M.D., F.C.C.P.1 and Charles F. Holtzman 1

1 Departments of medicine, USAF Hospital, Scott Air Force Base, Illinois and Geisinger Medical Center, Danville, Pennsylvania

A comparison of the vital capacities of 100 patients determined by a Collins 9 liter spirometer and a recently marketed compact spirometer demonstrated a rather low degree of correlation between the two methods (r=0.62). The latter instrument usually gave lower values. Variability on serial determinations and structural unsuitability for forced vital capacity measurements were additional disadvantages of the compact model. Despite the appeal of such a simple, easily portable apparatus, the compact spirometer cannot be recommended for the evaluation and management of patients with pulmonary diseases.






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Copyright © 1967 by the American College of Chest Physicians.