My 83 Year Old Mother Just Finished 20 Days At

My 83 year old mother just finished 20 days at a rehab after multiple hospitalations. The last hospital visit she had a pacemaker installed. She has kidney disease and 7 months ago a DVT in her left leg. She has been home for a week and is still out of breath doing very limited activity. Today her hand swelled very much and she is complaining of her arm hurting? I think she should go back to the hospital...what do you think?