Bill,  with regard to characters that are, as you say, "properly written," I totally agree with you.  But, in healthcare, we are very fortunate just to get Roman characters "properly written."
 
People who are in a hurry, be they physicians, PAs, nurses, or even pharmacists,  don't take the time to handwrite their words clearly, and this is despite the fact that we are dealing with people's lives. It is just human nature. 
 
 Old jokes aside, the problem lies with a healthcare system of communication that allows handwriting at all. 
 
What I should do is scan and post examples of prescriber handwriting, and even show here some articles about the lawsuits and the tragedies that have occurred due to misinterpretation of handwritten orders . It is a major daily problem, not only for me, but for every pharmacist who doesn't have the benefit of electronic medication orders, and that is, still, almost all of us. In my hospital's pharmacy department, we spent a huge amount of extra time just waiting to contact prescribers to clarify their orders. Pharmacists have suffered with this situation since the profession began. Fortunately, the status quo about to change, with the arrival of all-electronic orders in the next few years. For my department, that historic time comes on or about 25 January 2006, when our hospital begins to implement it.  Glory, glory, hallelujah!
 
Also, the sad fact is that there is some lack of SI literacy, and also innumeracy, among many healthcare workers. Typical is the inability to mentally process the relationship between the milligram and the microgram. This difficulty most often occurs with the thyroid hormone supplement levothyroxine, which is routinely ordered in either milligrams or micrograms.  I somehow believe that most Americans have no problem instantly reading  "$0.25" an interpreting it mentally as twenty-five cents, but that facility may not exist with micrograms.
 
Paul
 
----- Original Message -----
Sent: Saturday, December 10, 2005 19:59
Subject: [USMA:35379] Re: proper use of SI symbols in healthcare


On 2005 Dec 10 , at 5:31 PM, Paul Trusten, R.Ph. wrote (quoting others, I believe):
... exception to SI symbol use in healthcare is
JCAHO's prohibition of the Greek letter "mu" for the SI prefix "micro." When
handwritten, "mu" is is easily confused with a lower case "m,"

I cannot comprehend how a properly written (or printed) Greek letter mu (µ) can be mistaken for a properly written (or printed) Latin letter em (m).

Look at the two of them*:

mu µ
em m

µ m µ m µ m µ m µ m µ

µµµµ
mmmm

Where's the similarity???
That extended tail on the front end of a mu is a dead giveaway.

It's like saying the symbols for centimetres (cm) and kilometres (km) can be confused because a cee (c) looks like a kay (k). Ridiculous!

When I write a mu it looks like the mu above, not an em; and vice versa.

Regards,
Bill Hooper
Fernandina Beach, Florida, USA

*At least those symbols above SHOULD look like the greek letter mu (µ). It is possible that electronic transmission of special characters like Greek letters will not always be conveyed correctly. That's a problem with electronic transmission, not with the letters em and mu.

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Make it simple; Make it Metric
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