This has been our finding with PTH in blood anticoagulated with EDTA -
stable for several days at fridge temperatures.
Being a private pathology laboratory with PTH specimens coming from a wide
geographic area collecting clotting tubes, separating the serum ASAP into
at least two aliquots, freezing and transporting frozen to the lab caused a
lot of recollections/phone calls etc. I
believe that we received the information on the stability of PTH from
Biomediq (DPC Immulite PTH assay) , did some stability studies of our own
to confirm and hey presto PTH collections are no longer a big hassle
Michael Freemantle
Sullivan Nicolaides Pathology
PO Box 344
Indooroopilly Q4068
Brisbane
Australia 4068
ph +61 (0)7 33778638
fax +61 (0)7 38705989
home page http://www.powerup.com.au/~mfreeman
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> From: Dr D G Williams <[log in to unmask]>
> To: [log in to unmask]
> Subject: PTH
> Date: Friday, February 26, 1999 1:43 AM
>
> After many years of treating samples for PTH analysis with kid gloves,
> it appears that the molecule is remarkably stable in EDTA. Is there any
> hard evidence for this? I would be interested in finding out what other
> laboratories do.
>
> --
> Dr D G Williams
> Department of Biochemistry
> Sunderland Royal Hospital
> [log in to unmask]
>
>
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