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I think we have to be careful with the argument about limiting testing. Ordering all the tests for no reason is clearly not beneficial and meaninglessly increases the cost of care. However risk stratification may well be a good reason to order a test. It's even better when the course after the test is modifiable; but we test for all kinds of diseases that we don't have a treatment for so we can appropriately council patients even when it doesn't necessarily alter their clinical course. e.g. Huntington's and Alzheimer's.
Do we really need more tests for "risk stratification"? Isn't taking a history and ASA class enough? You shouldn't need a preop troponin to tell you not to slam 200mg propofol for induction for an 80yo CAD, DM, CKD, etc. Then again, maybe some of my attendings from residency would have benefitted from the hard data and a study telling them not to do that...