As one may be already aware of the issue that doctors suggest lot of redundant medical
tests to bump up profit.
Next time one suspects a test to be unnecessary, ask the doctor more details
about the test, like what s/he wants to find out, what would be the assessment
for test result being normal, abnormal, above normal, below normal.
Then verify your final assessment against the suspect test, if varying test result does not
affect the final assessment, the medical test was clearly redundant.
Let me know your thoughts to plug the loopholes of this idea