A.注射用藥為油劑,應(yīng)選細(xì)長(zhǎng)針頭 B.注射刺激性藥物,應(yīng)選擇細(xì)長(zhǎng)針頭 C.長(zhǎng)期注射者,應(yīng)選細(xì)長(zhǎng)針頭 D.注射用藥為混懸液,應(yīng)選粗針頭 E.對(duì)消瘦者及小兒,應(yīng)選細(xì)短針頭
A.針?biāo)?/3 B.針柄2/3 C.針梗2/3 D.針頭2/3 E.針梗l/3
A.30°~40° B.90° C.20°~30° D.40°~50° E.50°~60°