Micro (µ) is a symbol achievable on most keyboards using the ASC code ALT 0181 ie keep ALT pressed and type 0181.
Mike T
-----Original Message-----
From: Clinical biochemistry discussion list [mailto:[log in to unmask]] On Behalf Of David Bullock
Sent: 16 August 2013 21:05
To: [log in to unmask]
Subject: Re: Units
Richard:
1 & 2 are being addressed by NLMC, and we await their determination
3 This is a handwriting issue for patient safety - however, "mc" is not an authorised prefix under SI, so NLMC will stick with "u" for micro (I have asked previously)
4 Again an NLMC issue, but my guess is that 24h will be the preferred outcome
UK NEQAS is committed in principle to accepting NLMC units only for UK participants (as we did for salicylate and paracetamol), and we are trying to anticipate implementation where we can. I am relieved that we will be going for urate in umol/L ("NQCS" - as it then was - was somehow persuaded to change from umol/L to mmol/L as the scheme unit back in 1974 as this had been "officially recommended", and we have been suffering grief from the dichotomy in practice ever since . . .)
Hope this helps
Best wishes
David
PS: I believe that Anders didn't mention either the confusing use of dL (100mL) as denominator, or the continued use of "BUN" for reporting when we're neither measuring urea as nitrogen nor doing it in blood (incidentally, urea and BUN are numerically identical in mmol/L, yet another advantage of molar SI reporting over the factor of 2.14 in mass units!)
________________________________
From: Clinical biochemistry discussion list [[log in to unmask]] on behalf of Mainwaring-Burton Richard (SOUTH LONDON HEALTHCARE NHS TRUST) [[log in to unmask]]
Sent: 16 August 2013 16:33
Can anyone also please clarify a couple of other issues?
* If the case is so important for L vs. l, should we not also standardise mu/L, mU/L, miu/L, mIU/l etc ?
* What is the difference between u/L (or U/L) and iu/L (IU/L) - it seems that they are often, but not always interchangeable/national.
* In order to avoid confusion and inability to print µ medical staff use "mcg" rather than "ug".
* There also seems to be some dispute regarding the perceived difference between /24h (? hr, ?hrs) and /d.
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