What causes low grade fever and backache in a heart patient?
Patient: My husband had surgery for Afib 2 yrs ago his pulse is 128 he has a headache and is running a low grade fever and bad backache. He also had angioplasty 21/2 yrs ago I checked his pulse he is not does not have an irregular heartbeat  YYYY@YYYY Doctor: the pulse you said is high though as you sy its regular , it means that it is waht we call sinus tachycardia , which i believe is secondary yto the fever and backache , which should be evaluated with relevant investigation  for the cause of fever and backache . something i may suggest is  sonography of KUB for any urinary tract infection , kidney stone or varied causes . if backacke persistant and severe a xray and preferably mri spine lumber for rarer causes which may resulth in low grade fever with backache , if routine instigation as your GP may suggest are normal. however get an ecg done as many a times when the heart rate is fast as human someone can misdiagnose it to be regular .