Re: Insensible losses at altitude

["Andrew Berry" <ABerry@nets.org.au>]

The effect of altitude on relative humidity is less than that of medical oxygen supply. In other words, if your patient needs supplemental oxygen in flight, then humidity at any altitude will be determined by the humidification system you use to deliver the oxygen rather than the CPA.
For a patient breathing room air, there would have to be serious clnical fluid/electrolyte issues for me to worry about a formula for the CPA effect alone. I'd be monitoring physiology and adjusting intake accordingly (just as we all do travelling cattle class!)

<<< mikey49@concentric.net 12/27  9:50p >>>
Does anyone know a resource for fluid losses for a patient at high
altitude.
My work is fixed wing transports using a Lear jet. Typical cabin
altitude is 5600 to 6000 with flight level 350 to 450.

Thanks for the assistance.
Mike Earnheart, R.N.
Flight Nurse
Jet West
Van Nuys, CA.


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