A 1-year-old child has been unwell with a sore throat and fever for several days. He progresses to develop periumbilical abdominal discomfort and passes diarrhea. The pediatricians call you because the ultrasound has shown a 'target sign' on the right side of the abdomen. What is the best initial course of action?
Undertake a laparotomy
Undertake urgent fluoroscopic reduction
Undertake urgent hydrostatic reduction
Obtain intravenous access, administer fluids and antibiotics
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