I'm an MSIII who has a few months before my first anesthesia rotation. Correct me if I'm wrong, but isn't it true that in the past, anesthesia machines were not standardized from an engineering standpoint? On some models a dial would deliver more flow if turned counterclockwise, but on a different make, a dial in a similar position required a clockwise turn? Aren't the vaporizers now all color coded the same, regardless of who makes the machine? Aren't drug vials color coded the same accross manufacturers? Perhaps our more seasoned colleagues can think of other changes in the same vein.
It seems that these are systematic changes that have improved safety quite a bit. Even in MMD's ideal circumstances, a properly trained and well motivated individual would be statistically more likely to make a mistake if, for example, you worked on machine X all day, 25 days a month, and then on the 26th, you worked on machine Y, which, while similar, had a different setup such that some controls were reversed, as I outlined previously. The probability of making a mistake, as time increases, is simply higher than if, even at one hospital, rather than industry wide, all controls were standardized. You can argue "well, it's just good engineering" to make things standardized. That is true, but only if safety is included in the label "good engineering", which may not be true if functionality is the only thing a manufacturer is striving for. And if safety is factored into the engineering, then it's because of a systematic change, even if only at the level of the manufacturer, let alone the end-user environment.
MMD, you allude to a hypothetical error wherein perhaps 3 people are to blame. Can you explain how this is not an error in a system?
Your's is a long post (not hurling stones... clearly I live in a glass house and just pointing out the obvious...), so I'll address a couple of your points - and they are good ones, no doubt.
(1) First off, no, labeling (drug vials) is
not standardized. Should it be? I don't know. Seems that people should be encouraged to actually
READ the vial before they draw up the med. Standardizing would actually further
discourage this practice.
(2) You're talking about technology fatigue here, nothing more. The real irony is that standardization actually can
reduce vigilance, not improve it. What happens is, instead of actually learning the
principle behind the machine's operation, we simply learn (or those of us less-trained) how to operate the machine. This is far different from
understanding how it works, as Mil alludes to. In other words, you can put me in front of an anesthesia machine that I've never seen before and, because I understand the principle on how it's supposed to work, all I'll need is a few minutes to make it do what it's supposed to do.
Again, you can completely standardize everything if that's the goal. This
kills innovation. That's the trade-off. And, I assure you that complete standardization will, overall,
reduce vigilance, not improve it, and you will open a whole new set of unforeseen problems.
We're not talking about completely re-inventing the wheel and there is some value in not having to walk into a brand-new situation every day where you have to
inefficiently use your time re-learning the quirks of an individual system. What we're talking about is
mandating a system where you are
required to follow a prescribed and predetermined course of action (at least I am), and this is slowly but surely continuing to creep into medicine.
I've been told, for example, that I can't use certain medications in the outpatient clinic. Why? Because someone above me made that determination and made it a policy. Why? Because it was
their interpretation of JCAHO, the current literature, and overall ease of administrative issues far above my head. Do I like it? No. Do I have a say in changing it? Not right now. So, I deal with it, and begrudgingly follow the policy making my sometimes square patients fit into the round hole.
Is this good medicine? Maybe 90% of the time it works, but it's not really practicing medicine now, is it? Anyone can follow a protocol.
-copro