Abstract:The affinity for oxygen of normal human haemoglobin (Hb) solutions was measured in the presence of increasing concentrations of halothane. We observed a maximum increase in P50 of 25% with halothane 40 kPa compared with control (oxygen-argon gas mixtures) indicating the oxygen-linked character of the binding of halothane to the Hb molecule. The effect of halothane on P50 was independent of pH between 7.0 and 8.0 and of chloride concentration between 10 and 100 mmol litre-1. This suggests that halothane-Hb inte… Show more
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