They use a smaller gauge needles helps prevent trauma to small, fragile veins that frequently collapse in geriatric patients
Keratinized skin cells are found in the hair primarily but also on the palmar skin of the hands.
burn effects like blisters are caused by heat, not temperature. So basically that steam at 100 C contains more heat than water at 100 C but More severe, burn effects come from the gaseous water than the steam.
hopefully this helps, and i deeply apologize if i got this wrong for you
D. most closely match their sweat rates