<prompt> All are features of Vit. D intoxication, except ?Nausea and vomitingMuscular weaknessAnorexiaOliguria  <response>: 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. 