Pediatric Infections Practice Test

A 3-year-old girl with cough and fever has decreased breath sounds and dullness to percussion on the right. Exam: tachypnea and mild retractions. Labs: WBC 20,100/µL with neutrophil predominance. Chest radiograph shows a right pleural effusion with adjacent consolidation. Which of the following is the most appropriate next step in management?

A 10-day-old newborn has poor feeding and irritability. Pregnancy and delivery were uncomplicated; mother reports painful genital lesions near delivery. Exam: temperature 38.3°C, vesicular lesions on scalp, lethargy. Labs: WBC 9,200/µL; AST elevated. CSF shows lymphocytic pleocytosis. Which of the following is the most appropriate next step in management?