Effect of intermittent exposure to a low concentration of nitrous oxide on haemopoiesis in rats

Wistar strain albino rats were exposed to 1% nitrous oxide in air for periods ranging from 1 week to 6 months. Their peripheral blood and bone marrow were examined for evidence of alterations in haemopoiesis. Apart from a transient polycythaemia during the first week no change in haemopoiesis was found.