[Quote]And many think all should be able to use a proper mechanical stethoscope. What happens if batteries or amp fail?
And that's a very good reason for not using a noise-cancellation stethoscope. Can't RNs use a regular stethoscope, if they can't afford a n-c model or buy one used on the cheap?
If you build one and it malfunctions, you could be liable for damages. I'd only risk it if she were a homeopathic nurse, although what is a homeopathic nurse, when homeopathic doctors can have little or no formal education? That's not a put-down of homeopathic doctors, however. I've seen very interesting ideas, devices and procedures from the minds of homeopathic docs. Lots of what they do is a crock, but then once in a while, there is a spark of genuine inspiration.
[Edited by cmoy on 02-11-2009 at 07:49 PM.]