A 16-year-old wrestler has a 3 cm fluctuant abscess on the thigh with surrounding erythema. Temp 38.2°C; otherwise stable. After incision and drainage, which additional approach is most appropriate?

A 9-year-old with MSSA osteomyelitis improves after IV therapy on the orthopedic floor. What would be the next step in management?

A 10-year-old is bitten on the ankle while hiking in the Midwest. Two puncture marks are present with progressive swelling to mid-calf over 1 hour. The child has nausea and increasing pain. Initial labs: platelets 85,000/µL, fibrinogen low, PT/INR elevated. Which interpretation is most accurate?

A 6-year-old boy is diagnosed with early Perthes disease. Which factor is associated with the best prognosis?

A 13-year-old undergoes surgical pinning for SCFE. Which postoperative complication requires long-term surveillance and most affects prognosis?

Which presentation best fits acute hematogenous osteomyelitis?

A 14-year-old with poorly controlled diabetes presents with a large groin abscess and fever. After incision and drainage, which factor most strongly supports the need for systemic antibiotics?

A 7-year-old boy has 2 months of limp and knee pain in the ER. Hip exam shows decreased abduction and internal rotation. X-ray is normal. What would be the ideal next step in management?

A 6-year-old presents with fever, refusal to bear weight, and knee pain. Joint aspiration is negative, but CRP remains elevated and pain persists after 48 hours of antibiotics. What is the best next diagnostic step?

Order: Cephalexin (Keflex) 25mg/kg in for a child who weighs 60 pounds.Available: Cephalexin 125mg/mL   What is the child’s weight in kg?   What is the concentration of the Cephalexin?