Why are open wounds more sensitive than non-damaged areas of skin?
a) tuning chemicals around open wounds make pain receptors trigger more easily
b) the neurons in open wounds are damaged and can’t fire
c) there are more neurons in open wounds
d) the brain pays more attention to signals from a damaged area.

Anurse is preparing to administer lidocaine via continuous iv infusion at 4 mg/min. available is lidocaine 2 g dextrose 5% in water 500 ml. the nurse should set the iv pump to deliver how many ml/hr? (round the answer to the nearest whole number. use a leading zero if applicable. do not use a trailing zero.)