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Re: [IP] Exploding fingerstips!!
At 03:17 PM 10/17/02 -0700, Hal or Jo wrote:
>Your explanation sounds plausible; and, undoubtedly happens from time to
>time; however, most exploding fingertips occur when someone pierces a small
>artery near the surface of their finger.
There are no arteries near the surface of the finger. There are capillaries.
>If a finger is obviously inflamed, I doubt if many people would stick it for
>a drop of blood.
The finger need not be obviously inflamed or otherwise showing any evidence
of excessive trauma to exhibit this effect. I've had diabetes for more than
thirty years; I don't prick obviously inflamed or engorged fingers.
>The problem with interstitial fluid diluting contaminating blood from a
>finger puncture is when, after the puncture, the finger is not bleeding
>adequately and the person squeezes it hard to form a drop.
That happens, too.
>What squirts across the room is seldom diluted with interstitial fluid.
Maybe not in your experience, but it has been in mine. Well, anyway, the
stuff that I could catch to test with after the initial explosion. YMMV.
>> Date: Wed, 16 Oct 2002 17:19:22 -0700
>> From: Liz Davis <email @ redacted>
>> Subject: Re: [IP] exploding fingerstips!!
>> This happens when your finger has become irritated (probably from testing
>> so much). As a result of the irritation it develops a build up of
>> interstitial fluid. What squirts across the room is blood that's been
>> diluted by the fluid. When this happens to me I usually do the test from a
>> different finger, in hopes of getting a more accurate number from
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