HYPOCALCEMIA: High/Low PTH

HYPOCALCEMIA: High/Low PTH Hypocalcemia Low PTHHypoparathyroidism Total Corrected Serum Calcium < 2.10 mmol/L Corrected total serum calcium concentration (mmol/L) =measured total serum calcium concentration (mmol/L) + 0.02[40 g/L - albumin(g/L)] High PTHCongenital (Pediatric)Acquired Ca-S-RDi George Post-operative neck Radiation Infiltrative disease Autoimmune polyendocrinopathy Hypomagnesemia 25-OH D very low 25-OH D not very low Malabsorption Short gut Gastric bypass Liver disease Increased Vit-D degradation (eg. anti-convulsants) Chronic Renal Failure Severe hyperphosphatemia (eg. Tumor lysis syndrome, rhabdomyolysis, oral phosphate abuse/laxatives)