What to do when a dog ingests acetone?

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My Great Dane might have ingested a small amount of acetone fingernail polish remover.

Harlow is a 6 year old Great Dane weighing roughly 115lbs. Yesterday on our walk he had VERY watery diarrhea and vomited a white foamy mucus 3-4 times throughout the day which he has never done before. He hasn't had any diarrhea accidence in the house today and has not vomitted again since last night but i am still concerned.

I couldn't figure out what could have made him so sick. I searched the house and discovered that my second dane, a puppy, had drug out my "fingernail kit". I found a small bottle of acetone polish remover underneath my couch with a puncture hole in it. There couldn't have been more than a table spoon left in the bottle before they found it.

I know that any acetone consumption is BAD acetone consumption, but because of his size I wanted to see if you thought that a tablespoon sized amount would be enough to upset his stomach this badly for a day OR should i keep looking for other possible suspects?

Thank you so much!