In providing care for a patient with viral pharyngitis, which nursing intervention would be least appropriate?

A. Encouraging increased fluid intake: Hydration is a core supportive measure for viral infections to maintain mucosal moisture and facilitate the clearance of debris. It prevents the complications of dehydration associated with fever or reduced oral intake. This is a highly appropriate and standard nursing intervention for viral pharyngitis. B. Advising on rest and avoiding exertion: Conserving metabolic energy allows the body to prioritize the immunological response required to clear the viral load. Physical exertion can exacerbate fatigue and delay the recovery process. Rest is an essential component of the non-pharmacological management of viral upper respiratory infections. C. Recommending throat lozenges for discomfort relief: Lozenges provide localized soothing and can temporarily reduce the severity of odynophagia. They act as a topical analgesic to improve the patient's comfort and ability to maintain oral hydration. This is an appropriate symptomatic treatment for the inflammation seen in pharyngitis. D. Administering prescribed antibiotics: Antibiotics are biologically inert against viruses as they target bacterial structures like cell walls or 70S ribosomes. Administering them for a viral etiology is inappropriate and contributes to the proliferation of multidrug-resistant organisms. They should only be used if a bacterial co-infection is definitively diagnosed.