I would demand the test either way. I think doctors are prone to cut whatever tests possible to satisfy the health insurance companies. Sometimes I fib to the doc and give fake symptoms so they will run certain tests. I used to work in the medical profession so I how to play the game to get things done. That's how I got my endoscopy done - I way over exagerated my stomach pain so they said we better do a scope. When they were there guess what - they found four ulcers. Sometimes you have to do what you have to do to get proper care.