Yes My Mother Is In A Nursing Home With Alzheimer's.

Yes my mother is in a nursing home with Alzheimer's. Over the weekend she was being fed when she suddenly slumped over and became unresponsive, was also drooling. Her blood pressure became low and her oxygen level became low ,( in the low 80's). She was moved to her room and put on oxygen. She remained unresponsive for several hours. However her blood pressure came up and the oxygen brought her sats up to 94. After about two hours she was able to communicate again. They have her on both isosorb 30mg and metoprol 25mg. Could this combination have caused this reaction?