Final answer:
The appropriate intervention for a patient hospitalized with a streptococcal infective endocarditis is to arrange for placement of a long-term IV catheter.
Step-by-step explanation:
When planning care for a patient hospitalized with a streptococcal infective endocarditis, it would be appropriate for the nurse to include the intervention of arranging for placement of a long-term IV catheter. Streptococcal infective endocarditis is typically treated with high doses of intravenous antibiotics. A long-term IV catheter would allow for the delivery of medication directly into the bloodstream, ensuring effective treatment of the infection.