先锋霉素先锋霉素VIVI皮试液的配制皮试液的配制（标准浓度：（标准浓度：500ug/ml500ug/ml））溶解溶解0.5g/0.5g/支支2ml0.25g/ml(250mg/2ml0.25g/ml(250mg/ml)ml)稀释0.2ml0.8ml50mg/ml0.1ml0.9ml5mg/ml(5000ug/ml)0.1ml0.9ml500ug/ml氨苄西林皮试液的配制氨苄西林皮试液的配制（标准浓度为：（标准浓度为：0.5mg/ml0.5mg/ml））溶解0.5g/支2ml0.25g/ml稀...
