儿童假性消化道出血的鉴别OA北大核心CSTPCD

Distinguishing true and false gastrointestinal bleeding is an essential skill that every pediatrician needs to master.The main causes of pseudo-gastrointestinal bleeding are bleeding from the mouth,nose,throat,respiratory tract,and exogenous food or drug interference.In most cases,it is easier to distinguish true from false gastrointestinal bleeding by history inquiry,physical examination,and fecal occult blood test,avoiding unnecessary invasive examination and surgery as much as possible.However,there are some misdiagnoses and emergencies in clinical practice.If bleeding from the mouth,nose,pharynx,respiratory tract and digestive tract is ruled out after adequate clinical evaluation,the possibility of malingery or factitious disorders should be considered.