Explore a medical case study focusing on a child's failure to gain weight in this 11-minute video from the CRASH! Medical Review Series. Delve into the physical exam findings, diagnostic tests, and potential diagnoses for this clinical scenario. Learn about cystic fibrosis, its treatment, and associated pathogens. Examine chest X-ray results and fecal fat test interpretations. Review differential diagnoses and recap key points to enhance your understanding of pediatric weight gain issues and related conditions. Ideal for medical professionals and students preparing for licensing exams, this concise yet comprehensive review offers valuable insights into the diagnostic process and management of pediatric growth concerns.