A member asked:

Is this too much in a 2 month period, 1 pet scan, i ct, 6 x-rays , a brain scan now doctors wants another pet .lung nodule 1.4 -2.7 suv?

6 doctors weighed in across 4 answers

Need vs safety: The average background radiation exposure is a bout 2 msv (millisievert)/yr, and an average pet scan uses 5-7, ct=6.5-8, chest xray=0.02, and an aircrew member 4-9/yr, for comparison. It is hard to tell how many pet can be safely done--if you need it and the benefit outweights the risk, it does not matter how many. Talk to your doc/oncologist/radiologist--they know your case best. Good luck.

Answered 11/18/2019

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Dr. Justin Buchanan answered

Specializes in Radiology

Probably not: I'm sure the doctors who are seeing you have very good reasons to want to re-evaluate your nodule, and it seems quite reasonable. They probably want to be aggressive and detect any change as early as possible.

Answered 10/3/2016

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Dr. Klaus d Lessnau answered

Specializes in Pulmonary Critical Care

Check with your doc: You can always see another pulmonologist for a second opinion.

Answered 11/29/2013

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Probably not.: I would worry much more about the lung nodule than i would the quantity of scans.

Answered 11/29/2013

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