When supporting vasodilation by the use of warmth for a client with peripheral arterial insufficiency, what should the nurse caution the client to avoid?

The nurse restraints the client to elude using a heating pad to warm the extremities. In addition, vasodilation denotes to the broadening of blood vessels that outcomes from relaxation of smooth muscle cells in the vessel walls in specific in the large veins named venodilators, large arteries and smaller arterioles. The procedure is the contradictory of vasoconstriction which is the thinning of blood vessels.