Posted by Charles Knutson on July 11, 2000 at 07:58:34:

In Reply to: Re: Shilling Test posted by Karin Jacobsen on June 14, 2000 at 11:25:38:

: : What does the Shilling Test consict of and what are the risks of taking it.
: : OR

:
: Karin Jacobsen

The test tracks what happens to B-12 in your body to track it, the B-12 is radioactively tagged. RADIOPHARMACEUTICAL:

Vitamin B12 labeled with Co-57 is used; 0.5 mCi is given orally in capsule form. An IM injection of non-radioactive B12 is given 20 minutes after the oral dose. The critical organ is
the liver (0.1-0.2 rad).

SCANNING TIME:

A small urine sample is collected before the examination to use as background. Patient is then instructed to collect a 24 hr urine sample. The importance of obtaining a complete
sample cannot be overemphasized. For inpatients, please give instructions to the nursing staff in this regard.

They don't give it because there were interruptions in sources or Radio isotopes was affected by year 2000. Why because teo make them y2k compliant affected teh accreditation of the lab. Also the number or retests due to spillage, incomplete samples is high compared to the single organ burden.