High viscosity samples from Myeloma patients also do not spin correctly
with full barrier formation. I had one recently with a TP of 177 and
viscosity of 4.5 during On Call.
Malcolm Gray
Mailto:[log in to unmask]
-----Original Message-----
From: Anne Trewick
To: [log in to unmask]
Sent: 22/5/2003 12:29 PM
Subject: Re: Gel Tube Problems
We have noticed that a proportion of the SST II tubes do not completely
separate the serum from the cells. These samples will have threads of
red cells running through the gel, emerging in the serum. If these
tubes are left standing overnight I imagine a gradient would form.
I have reported this phenomenon to the MDA and I am awaiting a response
from BD.
Anne Trewick
-----Original Message-----
From: p=NHS NATIONAL
INT;a=NHS;c=GB;dda:RFC-822=ACB-CLIN-CHEM-GEN(a)JISCMAIL.AC.UK;
Sent: 19 May 2003 18:55
To: p=NHS NATIONAL
INT;a=NHS;c=GB;dda:RFC-822=ACB-CLIN-CHEM-GEN(a)JISCMAIL.AC.UK;
Subject: Gel Tube Problems
We use BD Vacutainer SST II tubes (yellow top). Has anyone witnessed
formation of a concentration gradient in the serum of tubes stored
overnight
at 4?C?
We would be interested to hear of this or any other similar problems
associated with the use of gel tubes.
Ian Rothnie
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