a clinical examination 临床诊断(法)
medical examination
a mass examination 会诊
make an examination of... 对…的检查[审查]
on examination 经检验[调查,检查]
under examination 在检查[调查]中(的).

an examination in English 英语考试
an oral [a written] examination 口[笔]试
go in [up] for one's examination 参加考试,应试
sit for [take] an examination 参加考试.

a preliminary examination 预审;初审.