----- Original Message -----
From: "Rowley Cottingham" <[log in to unmask]>
To: "Martyn Hodson" <[log in to unmask]>
Sent: Monday, January 26, 2004 10:11 PM
Subject: Re: Haemolysed blood specimens
> The haemolysis occurs because they continue to take blood the old way with
20ml syringe and
> needle. They then push the needle through the rubber bung of the
vacutainer and the blood is
> suddenly accelerated through the needle and crashes into the bottom of the
tube. I presume.
>
our labs types say if you must take blood with a syringe and needle, try
and use a green needle and then let the vacutainers 'suckup' the correct
amount fro mthe syringe , i.e. don't 'inject' into the bottle or pop the
'cap 'off and squirt some blood in
> Insist they use vacutainers by using the little holder affair and the
problem goes away. I don't know
> if the explanation is right but the problem went away when we stopped 20ml
syringe use.
I as an still inexpert cannualtor and taker of bloods find i get very few
haemolysed samples by sticking to what i was taught when doing my
adjustment of scope, as long as i get a good flow of blood
>Hate
> vacutainers anyway; I find the Sarstedt system that allows you to aspirate
far superior.
only ever used vacutainers + the little holders, so can't comment on that
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