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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A child presented with the projectile, forcible, non-bilious vomiting. The most likely diagnosis is
assistant
The correct answer is  Pyloric stenosis clinical presentation Infant is normal at bih, symptomatic between ages of 3-6 weeks Infants with HPS typically present with projectile nonbilious vomiting Visible gastric peristalsis may be seen as a wave of contraction from the left upper quadrant to the epigastrium The infants usually feed vigorously between episodes of vomiting Typical electrolyte abnormalities Hypochloremia Hypokalemia Metabolic acidosis with paradoxical aciduria Ref: Sabiston 20th edition Pgno : 1869