Practical techniques

Abstract

Peripheral vein infusion

The following are the steps used in setting up an intravenous infusion.

• (1) First find a suitable vein. The most satisfactory veins for infusion are usually in the upper limb. If possible avoid those overlying the wrist joint and elbow joint. Usually a suitable vein becomes visible or can be palpated after a venous tourniquet or a sphygmomanometer cuff is applied to the arm at a pressure midway between the arterial systolic and diastolic pressures. A vein well supported by subcutaneous tissue is ideal, and this is often found on the radial side of the forearm just proximal to the wrist.