prior to admission

基本解释

C. The patient had a history of tarry stools prior to admission.
病人在入院以前已经有柏油状大便的情况出现。
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I had a sudden attack of acute myocardial infarction at home and had first-aid treatment for about 3 hours at the spot prior to admission.
我在家里突然发生急性心肌梗死，入院前在现场抢救了3个小时。
This research includes broad question, which is whether children could identify their own information needs prior to admission for elective surgery.
这项研究包括了广泛的问题，在择期手术入场前，儿童是否可以确定自己的信息需求。

But in the summer of 2004 newspaper readers were shocked by the CIA's admission to Senate investigators that it had precisely zero agents in Iraq in the years prior to the invasion, because getting and keeping agents in such places is tough.
CENTERFORSECURITYPOLICY: Why US Intelligence is Inadequate