Blood Work Called For The recent articles about hypoxia and hypoxia-like cockpit events (Nov. 13-26, pp. 58-60) discussed cabin pressure, oxygen levels and various breathing device designs/flaws. But I was surprised to see no mention of monitoring actual levels of oxygen in the pilots’ blood. It seems like this would be key information to be used for early-detection and faulty oxygen-generating-warning systems and cockpit environments. Cub Nelson Redmond, Washington Strangled by Red ...

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