A 6wk child is brought in with vomiting, constipation and decreased serum K+. What is the dx?
a. Pyloric stenosis
b. Duodenal atresia
c. Hirschsprung disease
d. Achalasia cardia
e. Tracheo-esophageal fistula
answer: A
Projectile non-biliousvomiting
Vomiting 30-60 min after feeds
Hungry after vomiting
Dehydration (variable severity)
Hypochloremic hypokalemia
Olive like palpable mass
inv of choice : US
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