My wife had a day surgery for endometriosis treatment today and surgery went well. but during recovery, her heart rate elevated sometimes up to 145. ?

For how long?: If she's having copious bleeding, she should return for another look immediately. That said, pain, which is expected immediately after surgery, causes a rapid HR but it should gradually slow as she becomes more comfortable. If this is the case, rest and pain medication is the way to go. Be sure she's taking liquids well (to replace the lost blood volume). Warm wishes to you both.