Fwd: I-131 procedure bioassay requirement

[Ccja@aol.com]

---------------------
Forwarded message:
From:	rwu@clinserv.com (Richard W)
To:	Ccja@aol.com
Date: 97-09-30 11:52:28 EDT

Chris:

Thanks much for the advise. I checked the NOV again for that
hospital. They
do stated in their license condition that they will do a
bioassay when they
have procedure involved with more then 10 mCi of I-131
capsule. Although
this is their license condition, Should there be a
universal rule of
bioassay requirement for personal involved with I-131 only
in capsule form.
I recall  it only requires to do bioassay if you handle
more than 100 mCi
I-131 in capsule form in a open room.
I wonder if I am
wrong.

Richard
----------
> From: Ccja@aol.com
> To:
rwu@clinserv.com
> Cc: radsafe@romulus.ehs.uiuc.edu;
bergsagel.carl@seattle.va.gov
> Subject: Re: I-131 procedure bioassay
requirement
> Date: Tuesday, September 30, 1997 11:38 AM
> 
> Richard
>

> It has nothing to do with the 30 millicurie rule. The requirement is
from
Reg
> Guide 8.20, and is that bioassay must be done if a worker uses
1
millicurie
> in a calendar quarter, in a volatile or dispersable form, in
an open room
or
> bench, with possible escape of iodine from the process
vessels. In many
> cases, capsules are considered to pass this test, so
people don't do
> bioassays. The problem with the case you present is that
we don't know
what
> their licensure is. It could well require bioassays,
at the described
levels
> of activity, regardless of encapsulation. They
might also have inhouse
> policies and procedures that require bioassays,
under the described
> conditions (note that these two situations are not
mutually exclusive).
In
> either circumstance, if they didn't do the tests,
they were in violation.
> 
> chris alston