transfusion bottle

abstract activity agglutinate analyse analysis analyze anatomy attack background bag beat biology blood body cardiology clinic close closeup detail disease doctor donate ecg ekg exam exercise fitness flu fluids give giving health healthcare healthy heart heartbeat help hospital human infarct infarction infection injection internal isolated life medical medicine myocardial needle patient people physical physician pressure prevention pulse rate science scientist shot sick stand stress syringe test trace transfusion treadmill treatment up urine waveform