Abstract
The relationshps between peak flow rate and MBC, FEV 1.0 and VC were studied in 461 patients. The correlation coefficient (r) was found to be 0.80 between PFR and MBC, 0.61 between PFR and FEV 1.0 and 0.57 between PFR and VC. Measurement of peak flow rate in detecting ventilatory disease or in following a patient's ventilatory capacity is recommended.
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