Simulaids Geriatric IV Training ArmGeriatric IV Training Arm Developed from a live cast, this arm is unique to the industry. Its properties include veins that roll away or disappear as you attempt to catheterize the vessel and a specially developed skin that is exceptionally lifelike. Catheterization in this IV arm may be done either in the dorsal side of the hand or on the medial aspect of the forearm where you can palpate either a cephalic or basilic vein, including the antecubital