Aschool-age child with leukemia experienced severe nausea and vomiting when receiving chemotherapy for the first time. which is the most appropriate nursing action to prevent or minimize these reactions with subsequent treatments?

A48-year-old male presents with an 8-day history of productive cough, subjective fevers, and malaise. he is otherwise healthy without any active medical problems. he is a social drinker of alcohol, and denies any tobacco or drug use. on physical examination, the patient is alert and oriented. his temperature is 100.4 0 f, pulse rate is 56, respiratory rate is 18, and blood pressure is 133/64. heent is within normal limits and a chest exam has diffuse expiratory wheeze with decreased sounds to the right lower lung fields. blood labs reveal wbc 14.4, hgb 11.3, plt 233, alt 65, ast 102, and po 4 2.1. a chest x-ray reveals a dense consolidation with bulging fissures. based on these findings, what is the most likely pathogen affecting this patient?