小张,跑步时不慎被玻璃扎伤脚底,护士小李遵医嘱为其注射破伤风抗毒素。皮试结果:皮丘红肿,硬结直径大于1.5cm,有红晕并伴有伪足。采用脱敏注射,正确的方法是
A.分5次,0.2ml,0.2ml,0.2ml,0.2ml,0.2ml,加生理盐水至1ml,每隔10分,钟肌内注射一次 B.分4次,0.1ml,0.2ml,0.3ml,余量,加生理盐水至1ml,每隔10分钟肌内注射一次 C.分4次,0.1ml,0.2ml,0.3ml,余量,加生理盐水至1ml,每隔20分钟肌内注射一次 D.分5次,0.2ml,0.2ml,0.2ml,0.2ml,0.2ml,加生理盐水至1ml,每隔20分钟肌内注射一次 E.分4次,0.25ml,0.25ml,0.25ml,0.25ml,加生理盐水至1ml,每隔20分钟肌内注射一次