This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
All are features of Vit. D intoxication, except ? 
Select and explain. 
A. Nausea and vomiting, B. Muscular weakness, C. Anorexia, D. Oliguria
D: Oliguria
Answer: D: Oliguria 
Explanation: Ans. is 'd' i.e., Oliguria There is polyuria (not oliguria) Hvpervitaminosis D o The sign and symptoms of vitamin D intoxications are secondry to hypercalcemia which is caused by - i) Excessive bone resorption (major cause) --> Vit D causes bone resorption. ii) Increased calcium absorption o Manifestations are ? 1. GIT Nausea, vomiting, anorexia, poor feeding, constipation, abdominal pain and pancreatitis. 2. CIS --> Hypeension, arrhythmias and decreased QT interval. 3. CNS Lethargy, hypotonia, confusion, psychosis, disorientation, depression, hallucinations & coma. 4. Kidney ---> Polyuria, hypernatremia, dehydration, nephrolithiasis and nephrocalcinosis. Metastatic calcification.