Final answer:
Home infusion is the healthcare setting that involves therapies such as antibiotic therapy, parenteral nutrition, pain management, and chemotherapy at home, with IV administration being common for systemic infections.
Step-by-step explanation:
The type of healthcare environment where the primary therapies include antibiotic therapy, parenteral nutrition, pain management, and chemotherapy is home infusion. This form of treatment allows patients to receive these types of medical care at home rather than in a hospital or clinic setting, which can be more convenient and sometimes necessary for long-term treatments. For example, home infusion might be appropriate for a patient undergoing chemotherapy for cancer treatment, where the goal is to completely eradicate the cancer cells using a regimented pharmacotherapy approach.
Intravenous (IV) administration is often used in home infusion therapies for systemic infections, as it allows the medication to reach the bloodstream quickly and effectively. Administering antibiotics via IV can be critical in treating blood-borne infections caused by bacteria such as Staphylococcus epidermidis. However, when infections recur after IV treatment, as in the case of the patient mentioned, perhaps due to a catheter-related infection, switching to oral antibiotics may be more effective, as it was with the successful treatment of the patient's recurring skin and blood-borne infection.