Athree-year-old girl refuses to use her left arm after her mother tugged on her arm to her cross a street. she does not appear distressed but is holding her arm in pronation with the elbow slightly flexed. which of the following is the most appropriate next step? hyperpronate the forearm while applying pressure to radial head
obtain radiographs of forearm and elbow
perform arthrocentesis and send synovial fluid for analysis
place patient in splint