A child presented with decreased S.Calcium, increased S.Phosphorus and decreased urinary calcium and phosphorus. These are seen in which condition?
Renal tubular acidosis
Chronic Renal failure
Nutritional rickets
Coeliac rickets
Decreased sr. Calcium and increased S . phosphorus and decreased urinary phosphate and calcium excretion occurs in chronic renal failure . At first with the reduction of renal function phosphate balance is initially maintained by increased excretion from normal nephrons . However when gfr falls <25 % blood phosphate level rises and urinary phosphate decreased. Ref : Ghai pediatrics eighth edition pg no 495 - 496
Musculoskeletal  disorders