of breastfeeding.  When I reported back to the nurses who had asked for
the information, though, they said that they had been told that both the
types of scans required 24 hours of pump and dump, and that they would
continue to hold to this practice until I could show them some
documentation.

So my questions are: 1) Is it necessary to pump and dump for either a
lung scan or a CAT scan?  2) If so, for how long, and 3) Where could I
find documentation of this information?

They were TOLD?   TOLD by who?  The Janitor?  The secretary?  WHERE IS
THEIR PROOF?  Are they going to tell a woman that has a chest x-ray or a
barium enema the same thing?  My gosh, I wish they would use their
brains!!! Please excuse my yelling.

The CT scan is absolutely no problem to continue to nurse.

The lung scan will involve a small amount of radioactive material, so the
time required to avoid nursing will depend on several factors.  The exact
material used, what the radioactive half life is, how old the baby is,
whether they use the same material when they scan infants.  With no more
information that what you have said thus far Pump and dump for 24 hours
seems to be an overly safe recommendation.

Jon Ahrendsen MD FAAFP