No Subject

[james.g.barnes@att.net]

A colleague discussed the following situation with me 
today.  Although I have a feel for the generic situation, 
I would appreciate any input from specialists in the 
area.

You can respond to my private email if you'd like, but a 
public posting might be quite educational for those of us 
who don't do thyroid work on a daily basis.

Thanks,

Jim Barnes, CHP
Radiation Safety Officer
Rocketdyne/Boeing
james.g.barnes@att.net

================
The scenario is:

A 60y/o female being treated for thyroid cancer which has 
moved to lungs.  Multiple ablative doses have reduced, 
but not eliminated thyroid cancer activity as measured by 
blood thyroxine levels.

Questions:

What is the lifetime dose of radioactive iodine which can 
be administered?

What other target organs (bones? kidney?) would limit the 
dose?
************************************************************************
The RADSAFE Frequently Asked Questions list, archives and subscription
information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html