LK is a 40-year-old female s/p gastric resection 2 weeks ago…

LK is a 40-year-old female s/p gastric resection 2 weeks ago due to a perforated ulcer from complicated PUD. Prior to her surgery, she was experiencing severe pain and had an upset stomach. She is now complaining of persistent diarrhea after she eats.  What is mostly likely the cause of her current symptoms? HT: 5’4″          WT: 170#          Diet: NPO  Usual intake:                                                     AM: juice and fruit Snack: toast with butter Noon: half a tuna sandwich Snack: granola bar, Gatorade PM: mashed potatoes with gravy Snack: ice cream