Following suggestions to your queries...
Thank you for following up.
If I was her caring doctor, taking into account the patient age (84 years old), I would keep monitoring her lungs and heart for possible complications after surgery.
It is true that difficulty in breathing, dizziness
, chest pain
, etc. are normal signs of post-op.; however, I could conclude this only if I am really sure the patient is not having any problem with blood clotting anywhere (especially lungs/heart).
I insist to run the above-mentioned tests to rule out pulmonary embolism
or other heart complication. If nothing will be reported, then, it is a normal sign of post-op.
Hope it helped!