一女婴４个月龄，因被确诊为“喂养问题”而从他院转入急诊部。其病史如下：女婴出生后２个月体重正常，第３个月起吃奶时精神不振，伴呛咳、呕吐，曾至几家急诊就诊，医生建议改换婴儿食品并采取防止食物返流措施。当日，婴儿又因呛咳、呼吸困难急诊入院。婴儿足月产，重３． A baby girl, 4 months old, was transferred from his home to the emergency department for being diagnosed with “feeding problems”. The history of her baby was as follows: 2 months after birth, the baby was born with normal weight. She was mentally challenged during her first 3 months with choking and vomiting. She had been to several emergency clinics. The doctor suggested changing baby food and taking measures to prevent food reflux . On the same day, the baby was admitted to hospital due to cough and difficulty breathing. Infant full-term, heavy 3.