Pyloric Stenosis (General Surgery EOR - Smarty PANCE) Exam Questions and Answers 100% Correct

Pyloric Stenosis (General Surgery EOR - Smarty PANCE) Exam Questions and Answers 100% Correct What is it pyloric stenosis? Hypertrophy of smooth muscle of pylorus, resulting in obstruction of outflow What are the associated risks for pyloric stenosis? Family history, firstborn males are affected most commonly, decreased incidence in African American population What is the incidence of pyloric stenosis? 1 in 750 births, M:F ratio 4:1 What is the average age at onset of pyloric stenosis? Usually from 3 weeks after birth to about 3 months ("3 to 3") What are the symptoms of pyloric stenosis? Increasing frequency of regurgitation, leading to eventual nonbilious projectile vomiting Why is the vomiting non bilious? Obstruction is proximal to the ampulla of Vater What are the signs of pyloric stenosis? Abdominal mass or "olive" in epigastric region (85%), hypokalemic hypochloremic metabolic alkalosis, icterus (1