给临床诊断提供了有力的证据。(3)腹腔穿刺:腹穿可了解腹液的性状,当抽出黄色、浑浊、含胆汁或食物残渣时,可作为上消化道穿孔的有力佐证。本组30例气腹征阴性病人中18例腹腔穿刺检查阳性,占60%。 参考文献
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