Brachy Misadministrations

["Steven Grimm" <SGrimm@ehso.emory.edu>]

I was recently asked a question by a physician in a radiation 
oncology department concerning the Quality Management Program's 
definition of "misadministration" and "recordable event". The 
question basically was 'how much time do you have to get the 
brachy source in place before it is considered a misadministration?' 
In other words, suppose there was a temporary obstruction while 
trying to place the source in the site to be treated. Surrounding 
tissue is being irradiated at this time. What length of time is there 
to get this source in place before it's a misadministration, or 
recordable event. The GA regs simply talk about when the administered 
dose is >10% (rec. event) or >20%(misadmin.) of the prescribed dose. 
The prescribed dose is usually for the treatment site only. The regs 
do not give a rec.event/misadmin. threshold limit to other parts of 
the body.
Any thoughts? Suggestions? References?
Your help is appreciated.

Steve Grimm
Sr. HP
Radiation Safety Office
(404)727-3525; pgr. 742-7902
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