選(xuan)配(pei)助(zhu)(zhu)聽(ting)(ting)(ting)器(qi)(qi)(qi)時最(zui)好(hao)去醫院(yuan),對聽(ting)(ting)(ting)力(li)做(zuo)一(yi)次全(quan)(quan)面(mian)檢查,用電測聽(ting)(ting)(ting)等(deng)儀器(qi)(qi)(qi)準確地(di)評價出耳聾(long)的(de)(de)(de)程度(du),再(zai)選(xuan)助(zhu)(zhu)聽(ting)(ting)(ting)器(qi)(qi)(qi),如果當地(di)沒有相應條(tiao)件的(de)(de)(de)醫院(yuan),聽(ting)(ting)(ting)力(li)損(sun)(sun)(sun)(sun)失(shi)程度(du)與助(zhu)(zhu)聽(ting)(ting)(ting)器(qi)(qi)(qi)功(gong)(gong)率(lv)的(de)(de)(de)選(xuan)配(pei)可(ke)(ke)按口語試驗來估(gu)計。例如,聽(ting)(ting)(ting)不(bu)到(dao)耳語聲(sheng)(sheng)的(de)(de)(de)人(ren)聽(ting)(ting)(ting)力(li)損(sun)(sun)(sun)(sun)失(shi)30~40分(fen)(fen)貝(bei),聽(ting)(ting)(ting)不(bu)到(dao)低(di)小聲(sheng)(sheng)的(de)(de)(de)人(ren)聽(ting)(ting)(ting)力(li)損(sun)(sun)(sun)(sun)失(shi)約(yue)40~50分(fen)(fen)貝(bei),此(ci)時宜選(xuan)購低(di)功(gong)(gong)率(lv)及中(zhong)功(gong)(gong)率(lv)助(zhu)(zhu)聽(ting)(ting)(ting)器(qi)(qi)(qi);聽(ting)(ting)(ting)不(bu)到(dao)普通(tong)講話聲(sheng)(sheng)的(de)(de)(de)人(ren)聽(ting)(ting)(ting)力(li)損(sun)(sun)(sun)(sun)失(shi)約(yue)50~60分(fen)(fen)貝(bei),聽(ting)(ting)(ting)不(bu)到(dao)高聲(sheng)(sheng)講話的(de)(de)(de)人(ren)聽(ting)(ting)(ting)力(li)損(sun)(sun)(sun)(sun)失(shi)60~70分(fen)(fen)貝(bei),可(ke)(ke)選(xuan)配(pei)中(zhong)功(gong)(gong)率(lv)及大(da)功(gong)(gong)率(lv)型助(zhu)(zhu)聽(ting)(ting)(ting)器(qi)(qi)(qi);聽(ting)(ting)(ting)不(bu)到(dao)大(da)聲(sheng)(sheng)喊叫聲(sheng)(sheng)的(de)(de)(de)人(ren),聽(ting)(ting)(ting)力(li)損(sun)(sun)(sun)(sun)失(shi)70~80分(fen)(fen)貝(bei),選(xuan)用中(zhong)、大(da)功(gong)(gong)率(lv)助(zhu)(zhu)聽(ting)(ting)(ting)器(qi)(qi)(qi);全(quan)(quan)力(li)喊叫聲(sheng)(sheng)聽(ting)(ting)(ting)不(bu)到(dao)的(de)(de)(de)人(ren)聽(ting)(ting)(ting)力(li)損(sun)(sun)(sun)(sun)失(shi)約(yue)約(yue)80~90分(fen)(fen)貝(bei)或更高,可(ke)(ke)選(xuan)配(pei)大(da)功(gong)(gong)率(lv)及特大(da)功(gong)(gong)率(lv)助(zhu)(zhu)聽(ting)(ting)(ting)器(qi)(qi)(qi)。