In order to investigate the effect of monofluoroacetate (MFA) on renal H+ excretion, anesthetized rats under mannitol diuresis were given intraperitoneally MFA and some of the acido-basic status parameters were determined. Urinary pH and pCO2 did not change after MFA administration, while urinary flow rate increased. MFA induced a decrease in H+ net excretion and in ammonia excretion. Titratable acidity did not change significantly within the experiment.
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