The<unk>  study of<unk>  to find the source of<unk>  is rhinoscopy. In patients which rhinoscopy is not able to find the source vessel of bleeding,  internal carotid artery (ICA) angiography is the next<unk>  of action to find the bleeding site.
Epistaxis diagnostic study of choice
Lower gastrointestinal bleeding diagnostic study of choice
Upper gastrointestinal bleeding diagnostic study of choice
Upper gastrointestinal bleeding other imaging findings
Upper gastrointestinal bleeding other diagnostic studies
Lower gastrointestinal bleeding other imaging findings
Lower gastrointestinal bleeding other diagnostic studies
Lower gastrointestinal bleeding differential diagnosis