Let the part ready for vein puncturing,then antisepsis it.Remove the colorful acus s coverand expose the head of bi-direction acus,then puncture veins stanting on15unit of measure.
Let the part ready for vein puncturing,then antisepsis it.Remove the colorful acus s coverand expose the head of bi-direction acus,then puncture veins stanting on15unit of measure.
准备静脉穿刺部位，并予以消毒。拔除彩色针套，暴露双向针前端，以15度角斜向上进行静脉血管穿刺。