Has anyone experienced this with their kids? Green beans and blood in poop.

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I cannot get my daughter in to the doctor until Monday. She's been acting fine and besides this she still is acting normal. She pooped twice this morning and it was runny and not a lot at each time. Well 30 minutes ago she pooped again and it was a mix of runny dark poop, green beans and alittle blood.. She had green beans on Thursday. This has never happened before. My Mom thinks she ate the green beans to fast and it upset her bowl causing the green bean and blood and told me just to keep a eye on her until Monday and then let her doctor about it just to be cautious..

Should I do just that are take her to the ER? It freaked us out because my husband and I have never seen anything like this.