Hyperphosphatemia is seen in
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
CRF
Rickets
Prolonged phosphate intake
Osteitis fibrosa cystica
Fluid and electrolytes