Effect of Methemoglobinemia
نویسنده
چکیده
Experiments by one of us (1) have shown that methemoglobinemia exerts a protective effect in dogs against poisoning due to inhalation of HCN and CNCl. The possibility of applying these findings in man raised the question as to the extent to which methemoglobinemia would impair various physiological functions. Several groups of investigators (2 to 4) have found that a rise in the threshold of the dark adapted eye occurs during anoxia induced by low oxygen tensions, and have considered this visual test a very sensitive criterion of this type of anoxia. Accordingly, it was decided to determine whether the anoxia *due to methemoglobinemia would affect the visual threshold (a) at sea level, (b) at loWered oxygen tensions, and (c) after exercise.
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