[Pulmonary gas exchange in cats under heat load].
In anesthetized cats, the effect of heating stress on pulmonary gas exchange was studied in spontaneous breathing and in artificial ventilation. A moderate overheating of the animals by means of placing them into a heat chamber with air temperature 50 degrees C caused no essential disturbance of the gas exchange. In grave heating stress (the body temperature over 39.4 +/- +/- 0.17 degrees C), a considerable decrease occurred in efficiency of the gas exchange due to an increase in the lung ventilation and a decrease in the pulmonary blood flow.
D000136:Acid-Base Equilibrium; D000818:Animals; D001784:Blood Gas Analysis; D001831:Body Temperature; D002415:Cats; D006359:Heat Exhaustion / Q000503:physiopathology; D006439:Hemodynamics; D006358:Hot Temperature / Q000009:adverse effects*; D010313:Partial Pressure; D011659:Pulmonary Gas Exchange; D014692:Ventilation-Perfusion Ratio
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