摘要
Access block,known as exit block or boarding,is defined as a situation in which patients who are admitted or planned for admission remain in the emergency department(ED)as they are unable to be transferred to an inpatient unit within a reasonable time frame(no longer than 8 hours).[1,2]Access block often occurs due to insufficient hospital capacity and is a major issue in emergency medicine.[3]
基金
supported by the Project of Science and Technology Commission of Jiading,Shanghai(JDKW-2016-W03)
the Scientific Research Projects of the Shanghai Municipal Health Commission for Youths(20204Y0016)
the National Natural Science Foundation of China(72174041)
。