Need a little help... we obtain a CXR for tip plcmt on all pt's admitted with any type of venous access except for dialysis catheters. We've had several pt's recently with their port tip malpositioned... we've had IL BC, CL BC & IJ. Because of this recent increase, one of our MD's has ordered us to stop x-raying his ports. When we explained why we must continue, he said "I know exactly why you do it... but, I want you to access & use my ports but, do not x-ray them anymore. How would you handle this? Is there a written standard/guideline I can refer to? Also, to compromise with him a little, what's the longest you would go between confirmation CXR's on the same port... in other words, say the pt is admitted every other month. Would you obtain a CXR on every admission or, would you get a new one every few months? Thank you in advance for your help.