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1 From the Department of Pharmacology, University of Toronto, Toronto, Canada
The effects of changes in respiratory minute volume (V) on breath radon were studied in resting, supine subjects. At the onset of the unsteady state, at increased V, the curies of radon per liter of expired air (CL) decrease and the curies of radon exhaled per minute (CM) increase; at decreased V, both CL and CM decrease. At changed steady states the changes in CL are inversely proportional to the changes in V, but CM is constant. CM during steady states should be used to study the radium burden of radium-poisoned subjects.
Submitted on January 20, 1956
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