Whether there is leakage can be judged from three aspects, one is the puncture site whether there is swelling and pain, the second is to see the puncture site around the phenomenon of edema, the third is to see whether the return of blood to the infusion tube is smooth (method: shut down the infusion regulator knob or hand folding pressure on the infusion tube so that it breaks the flow, the other hand squeezed by the direction of the needle of the infusion tube, if the blood back to the smooth and painless that there is no leakage phenomenon).
If leakage occurs, the needle must be removed and a new site repunctured. The edema can be reduced by applying hot water to the edematous area.
If there is leakage, the needle must be removed and a new site repunctured.