My understanding is that urine for Calcium has to be collected into acid,
otherwise the Calcium salts precipitate out and are not redissolved on later
acidification. Can any one confirm as to whether this is correct or not?
-----Original Message-----
From: Stephen Davis
[mailto:[log in to unmask]]
Sent: Tuesday, October 24, 2000 9:43 AM
To: 'Robin Marks'
Cc: 'ACB Mailbase'
Subject: RE: Acid in Urine collection bottles
It is possible to avoid issuing urine collection bottles
containing acid if
the urine is acidified after collection. Ortho recommend
for their Vitro
analysers that 2.0mL 6M HCl is added for every 100mL urine
collected and
then well mixed. Alternatively add 400uL 6M HCl to a 20mL
aliquot of urine
taken from a well mixed collection. The Vitros analysers
correct for this
dilution of urine but for other methods it would be
necessary to allow for
this in your calculations.
Steve Davis
Principal Biochemist
Department of Clinical Biochemistry
Royal Glamorgan Hospital
Ynysmaerdy
PONTYCLUN
CF72 8XR
Tel: (0)1443 443357
Fax: (0)1443 443355
-----Original Message-----
From: Robin Marks [SMTP:[log in to unmask]]
Sent: Tuesday, October 24, 2000 9:01 AM
To: [log in to unmask]
Subject: Acid in Urine collection bottles
Acid in Urine collection bottles:
Hi,
Does anyone use an alternative to concentrated HCl
in the bottle for 24 hour urine calcium collection ?
Robin Marks
Halifax UK
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