Medisage Academy Quiz

A 5-year-old kid with autism spectrum disorder reported to the emergency room with bilateral lower-extremity bruises and developing difficulty ambulating. Vitamin A (0.12 mg/L; ref, 0.2-0.5 mg/L), vitamin C (0.09 mg/dL; ref, 0.4-2 mg/dL), and vitamin D (25-hydroxy, 11.5 ng/mL) levels were all low.