This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Stomach & Duodenum, Subject name: Surgery
Clinical features of pyloric stenosis in infants are all except: 
Select and explain. 
A. Abdominal lump, B. Constipation, C. Weight loss, D. Metabolic acidosis
D: Metabolic acidosis
Answer: D: Metabolic acidosis 
Explanation: Ans. (d) Metabolic acidosisRef: Sabiston 20th Edition, Page 1869* Weight loss can occur on longstanding cases* Constipation may occur due to persistent vomiting.