A 2 year old boy presents with his mom for recurrent bouts of abdominal pain and vomiting. Mom denies fevers but noticed decreased appetite. Mom states there has been a "stomach bug" going around the daycare. Vitals reveal a blood pressure of 90/50, heart rate of 120, rectal temperature of 99.0, respiratory rate of 36, SpO2 of 100% on room air. Exam is unremarkable, revealing a playful child with a normal abdominal and GU exam. The nurse asks you to reassess the patient and you see a very uncomfortable child, crying and holding his abdomen, his legs drawn toward his abdomen. What is the most likely diagnosis? 

A. Viral gastritis

B. Intussusception

C. Volvulus

D. Appendicitis 

E. Meckel's Diverticulum

Answer = B - Intussusception

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