question: I have my mother in law in the hospital that is recovering from back surgery 1 month ago. Her feet hurt on the top if you touch them and she cannot stand on them. By the arch she has redness like a bruise on the sides of the arch. Her potassium level is low so they kept her overnight. Her potassium is still low after 24 hrs. Her uric acid was on the high side and they thought she had gout.  They are doing an MRI tomorrow on her feet.