[ RadSafe ] Cardiolite Fate

[Alston, Chris]

Dan

You might want to review the NRC's Regulatory Guide 8.39, which can be readily found on its website.  I would apply a sum-of-the-fractions method to cut the suit to fit, in the very short term.

Or, from another POV, the physical t1/2 is usually controlling with Tc-99m pharmaceuticals, so after, say, 7 x t1/2 (42 h), you are just looking at the residual thallium (and contaminants).

Cheers
cja

P.S.  Hi, Barbara.  Glad to see that you are still doing well.


Dear Group: 
Yesterday I received both Tl-201 & Tc-99m as a intravenous cocktail during a 
cardiac stress test.  The dose was 3 mCi Tl-201 and 20 mCi "Cardiolite" 
Tc-99m for imaging.  By the time I got home, I was quite radioactive, with 
my Ludlum Model 19 measuring 5000 uR/Hr at a distance of 4 meters. 
According to the information that I received, the test amounts to a 3.45 REM 
total effective dose. 
Should I be avoiding my girlfriend for the next week or two?  She works at 
Los Alamos and I don't want to "contaminate" her. 

  

The good news is that no problems were found! 

  

Comments? 

  

Dan ii 

  

-- 
Dan W McCarn, Geologist 
108 Sherwood Drive 
Los Alamos, NM 87544-3425 
+1-505-310-3922 (Mobile - New Mexico) 
 <mailto:HotGreenChile at gmail.com>  <mailto:HotGreenChile at gmail.com> 
HotGreenChile at gmail.com (Private email) HotGreenChile at gmail dot com 

  

  

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