We used a Radiomerter BG analyser to measure haemoglobin in a pediatric
hospital setting. We also saw good correlation with our haematology
system.
A caution for some labs thinking of doing this:
Haematology specimens are mixed immediately prior to analysis. At least
in some labs, Blood gases are mixed by hand. If there is incomplete
mixing, one can get substantially erroneous results for haemoglobin on
the blood gas analyser.
Kent Dooley, Phd FCACB
-----Original Message-----
From: Clinical biochemistry discussion list
[mailto:[log in to unmask]] On Behalf Of Trevor Gray
Sent: Tuesday, August 05, 2008 12:49 PM
To: [log in to unmask]
Subject: Re: Haemoglobin on blood gas analysers
Following an incident, I wondered how accurate the Hb on
our gas analysers were (oh - all right - how similar to
our local standard - the haematology department!) so we
audited the Hb values on several gas analysers
(Radiometer). They turned out to fit remarkably well with
the nearest FBC from haematology, and where they didn't
there were usually big time gaps or clinical circumstances
which could explain the differences. The electrolytes were
a bit more problematic because of the difficulty of
detecting haemolysed samples. However, the Hb values were
certainly good enough to be used in an emergency, which is
what we advise doctors. I have to admit I didn't look at
the literature, it made a nice project for our F2 doctor!
Trevor
Dr. T.A. Gray
Consultant Chemical Pathologist
Northern General Hospital
Sheffield S5 7AU
On Tue, 5 Aug 2008 14:40:07 +0100
Jonathan Kay <[log in to unmask]> wrote:
> I'm not aware of national guidelines, but...
>
> When we were developing rule-based requesting of blood
>products, following the implementation of barcoding +
>handheld wireless- networked computers + smart 'frigs*,
>we had to decide whether haemoglobin concentration
>results from blood gas analysers were acceptable as
>inputs to the rules.
>
> We decided they were.
>
> Has anyone else been through this issue... but this
>might not be the best forum...
>
> Jonathan
>
> *
> http://www.olympusosyris.co.uk/files/blood_track_case.pdf
> http://www.ncbi.nlm.nih.gov/sites/entrez?
>db=pubmed&cmd=search&term=murphy_m%20AND%20kay_j%20AND%20blood
> <http://www.ncbi.nlm.nih.gov/sites/entrez?
>db=pubmed&cmd=search&term=murphy_m%20AND%20kay_j%20AND%20blood>
>
>
> On 5 Aug 2008, at 14:21, Hogan, Tim wrote:
>
>> Is anyone aware of national guidelines relating to Hb
>>measurements
>> on blood gas analysers and blood transfusion?
>>
>> Tim.
>>
>> Tim Hogan
>
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