TRUE/FALSE about features of Pyloric stenosis: 1. Hypokalemic alkalosis 2. Peristalsis right to left 3. Commonly caused by carcinoma stomach 4. Retention vomiting is present 5. Commonly females are affected
1,2,3 true & 4,5 false
1,2,5 true & 3,4 false
1 true 2,3,4,5 false
All are true
Hyperophic pyloric stenosis is more common in males. Male : female incidence is 4:1. Peristalsis is seen from left to right across the upper abdomen. Retention vomiting means vomiting due to any mechanical obstruction occurring usually hours after ingestion of a meal. In hyperophic pyloric stenosis the vomiting usually occur 10 to 30 min after the feed. Ref: Nelson 17/e, Page 1229