[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
RE: Patient Release - A Related Question
The 500 mrem is not to any member of the general public, it is to a select
member of the public, namely the family member. At least this is the
intent.
When the patient is released, they are given specific instuctions on where
they can go, how to minimize doses to those around them, etc.
As far as the contamination, realistically, the potential dose from uptake
of their contamination is minimal. I think it is routinely agreed that we
have the contamination levels not because they are necessary for dose
minimization but rather because we can and therefore it's ALARA.
Louie Tonry, CHP
Eisenhower Army Medical Center, Ft. Gordon, GA
louie.tonry@se.amedd.army.mil
-----Original Message-----
From: steve.rima@DOEGJPO.COM [mailto:steve.rima@DOEGJPO.COM]
Sent: Thursday, October 28, 1999 3:13 PM
To: Multiple recipients of list
Subject: Patient Release - A Related Question
RADSAFERs,
In my last post on this topic, I asked a question that has bugged me
for quite a while. Maybe someone out there can attempt to answer it.
Most NRC and Agreement State licensees are subject to the 100 mrem/y
limit for members of the public from their activities. In addition,
there are some pretty strict public information requirements for many
licensees, especially nuclear power plants, whereby they have to
provide information on the calculated _theoretical_ dose, and the
measured dose, that their plant is giving local residents. DOE sites
have similar requirements. There are also _very_ strict limits on how
much surface contamination is allowed to be released to the public on
material released from their sites.
Medical licensees, on the other hand, can now release a patient to the
public so long as the _calculated_ dose to a member of the public is
less than 500 mrem, and there is obviously no way to ever measure or
confirm whether this was exceeded. There is also no requirement, nor
attempts I've heard of, from hospitals to alert the local public that
they may be randomly exposed to up to 500 mrem from their patients. We
also know that a person with tens to hundreds of I-131 will
contaminate everything they touch, usually to a level above what is
releasable from other licensees, with no monitoring or public notice
required.
QUESTION: Why is there/should there be such a double standard??? I-131
is I-131, whether from a hospital or power plant, and a mrem is a
mrem, no matter the source, so why can hospitals do things that would
get other licensees cited, fined, or even shut down? An argument can
be made that residents near a power plant benefit from its operation,
but I don't believe that the random member of the public exposed to a
radioactive patient receives any benefit whatsoever.
I'm NOT addressing patient care issues here. Dr. Marcus asserts that
the NRC should stay completely out of that arena, and I totally agree
with her on that point. However, this question has absolutely nothing
to do with patient care and everything to do with consistency, or the
lack thereof, in regulations regarding public dose limits and
notification.
Anybody care to take a stab at an answer to this?
Steven D. Rima, CHP, CSP
Manager, Health Physics and Industrial Hygiene
MACTEC-ERS, LLC
steven.rima@doegjpo.com
************************************************************************
The RADSAFE Frequently Asked Questions list, archives and subscription
information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html
************************************************************************
The RADSAFE Frequently Asked Questions list, archives and subscription
information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html