[ RadSafe ] I-131 Pt and concerns

Perle, Sandy sperle at mirion.com
Wed Jan 4 16:43:07 CST 2012


I'll send you a Power Point presentation of dose from a 26.2 mCi administration that includes hourly exposure after administration for about a week and then compares the Direct Ion Storage measured dose to TLD for thyroid, areas within 1 to 3 ft. from body for various areas within a home. For my application I was told to simply wash sheets, towels each day and wash them separately. For an administration of 100 to 200 mCi the dose rate will be higher, but the elimination from the body should be consistent with the graphical data I plotted.



Sander C. Perle 
Mirion Technologies
Dosimetry Services Division 
2652 McGaw Avenue
Irvine, CA 92614
+1 (949) 296-2306 (Office)
+1 (949) 296-1130 (Fax)
Mirion Technologies: http://www.mirion.com/
"Protecting people, property and the environment"

-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu [mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Rees, Brian G
Sent: Wednesday, January 04, 2012 10:32 AM
To: The International Radiation Protection (Health Physics) Mailing List
Subject: [ RadSafe ] I-131 Pt and concerns

I have a friend, who has a friend that will soon be undergoing I-131 therapy for a metastasized thyroid Ca.  The Pt is a new mother, and went to the www to read about I-131, radiation, etc., and is now convinced she needs to throw away her used clothing, sleep in a different part of the house (the basement), and not have any contact with her baby for a month (among other things)... hopefully she isn't buying over-priced vitamins... but anyway...

I did go through the archives, but haven't found any what I would consider to be good, authoritative and informative sources of information regarding post-therapy care and precautions, but don't have time to go through all the archives either (!).  Recommendations?

I don't know how much activity they are planning to administer (assuming 100-200 mCi or so), or other details (she's a friend of a friend...), but one thing she is particularly concerned about is holding her baby at some point in an infant carrier (the kind that holds the baby against the chest).  Other than making all kinds of assumptions myself, is there an accessible program that I could use to calculate exposures for after a week, 2 weeks, etc., to help inform the mother of what doses would be, rather than having her full of fear?

Yes, I know it's to help the mother, and that an infant thyroid is vulnerable, and that her MD should be making recommendations, and that I'm not an MD, etc., but I sure hate to see a distorted view taken of the potential risks from this procedure.

Thanks in advance,
Brian Rees, NRRPT, CHP

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