選配(pei)助(zhu)(zhu)(zhu)聽(ting)(ting)(ting)(ting)(ting)器(qi)(qi)(qi)時(shi)最好去醫(yi)院,對聽(ting)(ting)(ting)(ting)(ting)力(li)(li)做一次(ci)全面(mian)檢查,用(yong)電測聽(ting)(ting)(ting)(ting)(ting)等儀(yi)器(qi)(qi)(qi)準(zhun)確地(di)評價出耳聾的程(cheng)度(du),再(zai)選助(zhu)(zhu)(zhu)聽(ting)(ting)(ting)(ting)(ting)器(qi)(qi)(qi),如果當地(di)沒有相應條(tiao)件的醫(yi)院,聽(ting)(ting)(ting)(ting)(ting)力(li)(li)損(sun)(sun)失(shi)(shi)(shi)程(cheng)度(du)與助(zhu)(zhu)(zhu)聽(ting)(ting)(ting)(ting)(ting)器(qi)(qi)(qi)功(gong)率(lv)(lv)的選配(pei)可(ke)按口語(yu)試驗來估計。例(li)如,聽(ting)(ting)(ting)(ting)(ting)不(bu)到(dao)耳語(yu)聲(sheng)的人聽(ting)(ting)(ting)(ting)(ting)力(li)(li)損(sun)(sun)失(shi)(shi)(shi)30~40分(fen)貝,聽(ting)(ting)(ting)(ting)(ting)不(bu)到(dao)低(di)小聲(sheng)的人聽(ting)(ting)(ting)(ting)(ting)力(li)(li)損(sun)(sun)失(shi)(shi)(shi)約40~50分(fen)貝,此(ci)時(shi)宜選購低(di)功(gong)率(lv)(lv)及(ji)中功(gong)率(lv)(lv)助(zhu)(zhu)(zhu)聽(ting)(ting)(ting)(ting)(ting)器(qi)(qi)(qi);聽(ting)(ting)(ting)(ting)(ting)不(bu)到(dao)普通講(jiang)話聲(sheng)的人聽(ting)(ting)(ting)(ting)(ting)力(li)(li)損(sun)(sun)失(shi)(shi)(shi)約50~60分(fen)貝,聽(ting)(ting)(ting)(ting)(ting)不(bu)到(dao)高(gao)聲(sheng)講(jiang)話的人聽(ting)(ting)(ting)(ting)(ting)力(li)(li)損(sun)(sun)失(shi)(shi)(shi)60~70分(fen)貝,可(ke)選配(pei)中功(gong)率(lv)(lv)及(ji)大(da)功(gong)率(lv)(lv)型助(zhu)(zhu)(zhu)聽(ting)(ting)(ting)(ting)(ting)器(qi)(qi)(qi);聽(ting)(ting)(ting)(ting)(ting)不(bu)到(dao)大(da)聲(sheng)喊叫(jiao)(jiao)聲(sheng)的人,聽(ting)(ting)(ting)(ting)(ting)力(li)(li)損(sun)(sun)失(shi)(shi)(shi)70~80分(fen)貝,選用(yong)中、大(da)功(gong)率(lv)(lv)助(zhu)(zhu)(zhu)聽(ting)(ting)(ting)(ting)(ting)器(qi)(qi)(qi);全力(li)(li)喊叫(jiao)(jiao)聲(sheng)聽(ting)(ting)(ting)(ting)(ting)不(bu)到(dao)的人聽(ting)(ting)(ting)(ting)(ting)力(li)(li)損(sun)(sun)失(shi)(shi)(shi)約約80~90分(fen)貝或更高(gao),可(ke)選配(pei)大(da)功(gong)率(lv)(lv)及(ji)特大(da)功(gong)率(lv)(lv)助(zhu)(zhu)(zhu)聽(ting)(ting)(ting)(ting)(ting)器(qi)(qi)(qi)。