Question: A woman of 90 years of dementia, incontinent and immobilized by hemiparesis presents a sacral ulcer of grade III. In the examination we see that he is in bed on a wet pad and with a feeding tube that is well placed. He is afebrile and has a normal pulse and blood pressure. It has a 4 x 4 cm sacral ulcer that extends into the fascia with green exudate and normal skin surrounding the ulcer. What is the first priority in the care of this patient? 
 Options:  <1> Start treatment with antibiotics. <2> Cultivate the decubitus exudate. <3> Apply semi-moist bandages of saline three times a day. <4> Make postural changes to the patient every two hours. <5> Place a permanent urinary catheter.
4