This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of Thyroid, Subject name: Medicine
[{'content': 'Vitamin D deficiency has all of the following except? \nSelect and explain. \nA. Hypocalcemia, B. Increased SAP, C. Increased PTH, D. Hyperphosphatemia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Vitamin D deficiency leads to Hypocalcemia. This results in secondary increase in PTH. This PTH now acts on proximal convoluted tubule to cause loss of phosphate. The increased bone turnover causes an increase in serum alkaline phosphate. Impoant calcium/phosphate and SAP fluctuations. Condition Rickets Hyperparathyroidism Osteoporosis Paget Disease Chronic Renal Failure Serum calcium Less Increased Normal Normal Less Serum phosphate Less Less Normal Normal Increased SAP Increased Increased Normal Dispropoionate increased Increased PTH Increased Increased Normal Normal Increased', 'role': 'assistant'}]