This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chronic Kidney Disease & Diabetic Nephropathy, Subject name: Medicine
Calciphylaxis is seen in CKD patients due to? 
Select and explain. 
A. Warfarin, B. Hypoparathyroidism, C. Urinary phosphate wasting, D. Tumoral calcinosis
A: Warfarin
Answer: A: Warfarin 
Explanation: Calciphylaxis Painful syndrome of calcification of the small blood vessels located within the fatty tissue and deeper layers of skin, blood clots and death of skin cells due to too little blood flow . Calciphylaxis is seen in CKD patients due to Warfarin