neonate with positive newborn screen, 878 –879 organic acidemias, 874 urea cycle defects, 876 –877 Metacarpal fractures, 1150 Metacarpophalangeal (MCP) joints, 1148 Metaphyseal corner (“bucket-handle”) fractures, 405 Metastatic disease of breast, 112 Methanol, 1055 –1056 Methemoglobinemia, 123 , 143 –144 Methicillin-resistant Staphylococcus aureus (MRSA), 1164 , 1176 , 1342 oral antimicrobial therapy, 1349 Methionine malabsorption syndrome, 333 Methotrexate, 1015 Methylprednisolone, 894 Methyl salicylate poisoning, 337 Methylscopolamine, 139 Methylxanthines, 531 Metoclopramide (Reglan), 887 Metronidazole, 81 t Metrorrhagia, 536 Microangiopathic anemia, 420 –421 Microsporum canis , 443 Midazolam, 39 t, 496 –497 Middle ear injuries, 1114 Middle East respiratory syndrome (MERS), 202 , 481 Midline neck lesions See Neck lesions, midline Migraine, 157 –158 , 191 neurologic emergencies agents for acute treatment, 887 t clinical considerations, 886 –888 clinical indications for discharge/admission, 888 common form of, 886 diagnosis of, 887 evidences, 886 goals of treatment, 886 management, 887 –888 Milia, 634