A wound culture shows that an infection is present in a sacral pressure ulcer.The nurse should plan to use which of the following medications,if ordered,to treat the wound before collagenase is applied?

Question

Quizplus · Accepted Answer

Polymyxin B is an antibiotic that is effective against gram-negative bacteria, which are commonly found in pressure ulcers. It would be an appropriate choice to use before applying collagenase to treat the infection. Iodine, mercury compounds, and silver nitrate are not effective against all types of bacteria and may actually be harmful to healthy tissue in the wound.

A Wound Culture Shows That an Infection Is Present in a Sacral