Final answer:
It is recommended to replace transparent dressings on short term CVC sites every 7 days to prevent infection, except in pediatric patients. In Barbara's case, her catheter site became infected and required treatment with antibiotics and a fresh dressing.
Step-by-step explanation:
For short term CVC sites, it is recommended to replace the transparent dressings every 7 days, except in pediatric patients. This is to prevent complications such as infection. However, in Barbara's case, her catheter site had become infected, indicated by redness, warmth, and fever. Her physician treated the infection with a topical antiseptic, prescribed antibiotics, and applied a fresh dressing. Regularly replacing the dressing helps maintain a clean environment and reduces the risk of infection.