This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fluid and electrolytes, Subject name: Medicine
Hyperphosphatemia is seen in 
Select and explain. 
A. CRF, B. Rickets, C. Prolonged phosphate intake, D. Osteitis fibrosa cystica
A: CRF
Answer: A: CRF 
Explanation: Hyperphosphatemia in chronic kidney disease (CKD) patients is a potentially life altering condition that can lead to cardiovascular calcification, metabolic bone disease (renal osteodystrophy) and the development of secondary hyperparathyroidism (SHPT). Ref Davidson 23rd edition pg 344