Use the first drop or second?

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Use the first drop or second?


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Old 04-03-2013, 18:23   #1
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My wife went to a friend's house for dinner last night. When she went to check her blood sugar 2 hours after dinner, her friend had a conniption fit when she used the first drop of blood that came out. Her friend said she was supposed to wipe that first drop off and then use the second drop for testing. We checked the manual for our Relion and it said nothing about using the second drop.

Has anyone else ever heard this? Our friend insists this is how her MD's office does it and therefore is how it should be done.

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Old 04-03-2013, 18:29   #2
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Never heard or read of this. The only reason I can think of is to prevent contamination on an unclean finger.




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Old 04-03-2013, 18:36   #3
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I seem to recall having read that here, some time ago.

Seems like bunk to me!

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Old 04-03-2013, 18:43   #4
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There's no consensus on this, but in general it comes down to... If you wash your hands first, use the first drop. If you don't have the option to wash your hands, use the second. Testing blood sugar: First or second drop? - MayoClinic.com

When I give blood, they always take the second drop for testing iron, even though they've swabbed the finger clean. It's just their protocol.
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Old 04-03-2013, 20:00   #5
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I've never heard of this either, and my doc. always uses the first drop when he tests in his office. I have to go every 6 mos. for a thyroid and BS checkup, and he always tests in his office on that same day. I do know that when I used alcohol swabs on my finger before each time I tested, my skin started to dry out, and it started to hurt more to test each day, so I stopped doing that. I'm sure it had to do with possible contamination, although I've never really heard of anyone having a contamination problem continually skew their readings.

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Old 04-03-2013, 20:06   #6
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Never heard of doing a second drop for testing for BG.

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Old 04-03-2013, 21:58   #7
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Recently when I had some procedures done outpatient, they did wipe the first drop and use the second to test. One nurse wiped the second also and used the third. I think as mentioned above it is just protocol as they don't know what might be on our hands at that time. At home we know what we have been doing and wash or use an alcohol wipe so we know we are clean. I always use the first drop myself. I know my hands are clean.

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Old 04-05-2013, 14:15   #8
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Thanks so much for the info, everyone. My poor wife was confused, having been a nurse in the far distant past and never heard of that. Now maybe we can help our somewhat hyper-spazy friend.

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Old 04-05-2013, 17:17   #9
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Quote:
Originally Posted by chickendancer View Post
I'm sure it had to do with possible contamination, although I've never really heard of anyone having a contamination problem continually skew their readings.
I have actually read about contamination skewing results, and have also experienced it myself. That's why it's a good idea to wash your hands before testing.

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Old 04-05-2013, 21:11   #10
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I use the first. I had never been told to use the second and when I first started testing, I had so much trouble getting blood that I was afraid I'd run out

A friend of mine, though, who is almost finished with his nurse's training, swabbed me with alcohol, wiped with gauze, pricked, wiped the first drop, and tested the second. (I offered to let him do it to get some practice. He did really well!)

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