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青霉素皮试阴性就是不过敏吗?

来源:华人健康网 | 发布时间:2011-03-21 16:50:48 | www.chinesejk.com

  不一定。青霉素有时也会出现迟缓反应,在临床上常有这样的情况,如患者青霉素皮试阴性,也已经一连注射了好几天,从未有任何不适,但就在注射几天后出现了过敏反应,这在医学上称为血清病型反应。一般于用药后3~12天内发生,临床表现和血清病相似,有发热、关节肿痛、皮肤发痒、荨麻疹、全身淋巴结肿大、腹痛等。所以每次注射青霉素后,患者都应静坐观察20分钟左右再离开。

  患者应注意,每次到医院注射青霉素都必须带好青霉素皮试阴性的证明,应按医嘱按时注射,停药三天以上要重做皮试,尽量不要在家里或不具备急救条件的卫生站注射;注射后要耐心静坐20分钟。青霉素过敏随时都有可能发生,大意不得。



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