With our introduction of Modular P180 two years ago, we had a rise in calcium of approx. 0.05 mmol/L compared to the old Hitachi 747, resulting in an upper limit of the referencevalues of approx 2.60 mmol/L or even higher, based on PTH results in patients visiting our bone metabolism department. A decrease in calibration wil bring us back within the stated reference range of Roche of 2.20 - 2.55.
With regards,
Bart Ballieux
Dr. Ir. B.E.P.B. Ballieux
Clinical Biochemist
Leiden University Medical Centre
P.O. box 9600
2300 RC Leiden
The Netherlands
t: +3171-5262165
f: +3171-5266753
e: [log in to unmask]
-----Original Message-----
From: Clinical biochemistry discussion list
[mailto:[log in to unmask]]On Behalf Of Wills Philip
(Queen Elizabeth Hospital NHS Trust)
Sent: dinsdag 28 maart 2006 11:11
To: [log in to unmask]
Subject: Calciums
Can anyone say where we are with the Roche Calcium
calibration change of 'Cfas' by -6.3%? Do we put up with EQA
returns of +1.5 to +2.0 SDI, or make the change and end up
with a bunch of hypocalcaemics? (Or alternatively change our
refernce range).Has anyone made the change and been happy
with the resultant patient means? I'd love to hear from
anyone who is still unhappy with this situation.
Phil Wills QEH Woolwich.
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------ACB discussion List Information--------
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