RE: Mecial Question

[Karin Gordon <KGordon@exchange.hsc.mb.ca>]

Yes, it is  a diagnostic nuclear medicine procedure (using either I-131 or
I-123) to determine the level of uptake by the thyroid tissue - that prior
information is necessary for the nuclear medicine physicians to determine
how much I-131 to administer for the therapeutic thyroid ablation procedure.

Can you ask the worker to contact the nuclear medicine department and ask
how much of what radionuclide they will use for the diagnostic uptake
procedure?  That will help you determine if he'll set off all your nuclear
power plant radiation detectors.   I-123 has a much shorter half-life, so
it's use for the diagnostic procedure would minimize the workplace hassle,
in terms of minimizing the amount of time before he could return to work
without triggering your alarm systems. However, I-123 is sometimes not
available to all nuclear medicine departments, due to logistics and expense.

Hope this is useful.

Karin
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Karin Gordon RTR, RTNM, RTT
Radiation Safety Office 
Winnipeg Health Sciences Centre
GC-214, 820 Sherbrook Street
Winnipeg, Manitoba
CANADA, R3A 1R9

phone   (204) 787-2903
fax        (204) 787-1313
e-mail    kgordon@hsc.mb.ca
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-----Original Message-----
From: Lavera, Ron [mailto:Ron.Lavera@nypa.gov]
Sent: Tuesday, February 29, 2000 1:48 PM
To: Multiple recipients of list
Subject: RE: Mecial Question


Good idea.  I checked out the suggested web site.  Got an access denied
message.  Sent Sandy a follow up message.

Ron

		-----Original Message-----
		From:	Williamson, Matthew
[mailto:Matthew.Williamson@nypa.gov]
		Sent:	Tuesday, February 29, 2000 2:25 PM
		To:	Multiple recipients of list
		Subject:	Mecial Question

		We have a worker about to undergo a thyroid ablation.  He is
scheduled for
		an "uptake test."

		Can someone enlighten me on what this is?  Particularly, if
it is a nuclear
		medicine procedure with a smaller administration of I-131?

		Matt Williamson
		Indian Point Unit 3
		Williamson.m@nypa.gov <mailto:Williamson.m@nypa.gov> 	
	
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