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[IP] mixing insulins...another question

Once the H/V mix is in the cartridge does it tend to
stay mixed or do you have to shake the pump prior to a
bolus delivery?


Previous message:
Date: Wed, 5 Jan 2000 14:47:42 -0800
From: "Michael" <email @ redacted>
Subject: Re: [IP] re: mixing insulins...another

>From and engineering standpoint, to promote mixing you
would draw the smaller amount of fluid first -- this
will allow the turbulence of drawing the second larger
amount to promote good mixing. A secondary effect is
that the resulting mix is closer to the
characteristics of the last fluid drawn. What you draw
last will have a small amount of "pure" stuff in the
leur lock area. When this is infused, the difference
between the pure H and the H/V mix will be slight and
any change in effectiveness as it is used up will go
unnoticed. If it 
were the other way around, you conceivably could draw
as much as 10-30 units of V -- which is regular --
before the mix began to enter the system. Since the
absorption time of the V is much different than 
either H or the H/V mix, this could create a problem

email @ redacted

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