Thank you for the additional information.
I have good news for you. The absorbent gel inside of diapers
is not toxic to dogs. The most harmful part of a diaper is actually the diaper itself because it can cause an obstruction inside of Sammy's intestines or stomach
if she would have ingested it. Since she did not ingest much of the diaper she really should be just fine. At her size, she would have needed to eat about 1/4 of the diaper to be at risk for an obstruction.
At this point, the worst case scenario would be that she could develop a mild upset stomach
from the gel or the diaper therefore I would recommend watching her closely for any vomiting or diarrhea. IF these symptoms are seen then I would recommend holding her off of food for about 8 hours. After 8 hours you can feed her a bland diet
such as boiled ground beef and rice. This can be fed for 2-3 days or until she is back to normal.
Overall I would not expect any toxicity and as long as she did not ingest much of the diaper she really should be just fine.
Hope this helps to answer your question - if not or if you have any more questions please feel free to reply by clicking on the "reply to" button. Thank you for your question!