An 82-Year-Old Patient Is Being Treated in the Hospital for a Sacral

An 82-year-old patient is being treated in the hospital for a sacral pressure ulcer. What age-related change is most likely to affect the patients course of treatment?

A) Increased thickness of the subcutaneous skin layer
B) Increased vascular supply to superficial skin layers
C) Changes in the character and quantity of bacterial skin flora
D) Increased time required for wound healing