But doesn't WHO also recommend that if fluoride tubes are used they should be put on ice immediately?
So in practice do any labs do GTTs correctly?
Ian
-----Original Message-----
From: Clinical biochemistry discussion list [mailto:[log in to unmask]] On Behalf Of Colley, Michael
Sent: 17 May 2012 16:01
To: [log in to unmask]
Subject: Re: Low 2hr post glucose load glucose concentrations
Indeed it does. Doesn't anyone remember my paper in the Annals of about 1987 using Fortical/Polycal ?
Michael
-----Original Message-----
From: Clinical biochemistry discussion list [mailto:[log in to unmask]] On Behalf Of David James
Sent: 17 May 2012 15:29
To: [log in to unmask]
Subject: Re: Low 2hr post glucose load glucose concentrations
Doesn't that contradict WHO protocol where glucose should be given in volume no greater than 300mL???
dj
-----Original Message-----
From: Clinical biochemistry discussion list [mailto:[log in to unmask]] On Behalf Of Louise Ward
Sent: 17 May 2012 15:17
To: [log in to unmask]
Subject: Low 2hr post glucose load glucose concentrations
Dear Mailbase,
I hope all is well!
We sometimes see a drop in glucose concentration on the 2 hr post glucose load result, compared to the fasting level, in our glucose tolerance tests.
This is just part of the course, presumably a post prandial reactive issue. This week we have anecdotally seen 5. We will audit formally to review the extent of this issue.
Analytically the samples are checking out, the sample are labeled correctly. Here in Bedford Lucozade is used to the provide the glucose load (410 ml - 70 kcal per 100ml). The phlebotomists are using the correct protocol, the labeling of the Lucozade appears to be the same. The phlebotomists don't seem to be mixing the samples up. We use Roche instruments and we have not been notified that anything has changed in the glucose reagent that might react with the Lucozade.....
Is anyone else seeming something similar? Or have any suggestions?
Best wishes,
Lou
Louise Ward, Clinical Scientist, Bedford
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