CA 8.6 - 10.3 LOW DIFFERENTIAL DIAGNOSIS
DIFFERENTIAL DIAGNOSIS OF HYPOCALCEMIA
PTH Absent/Decreased
Hereditary
DiGeorge Syndrome
Genetic Mutation
GATA3 Gene
PTH Gene
GCMb Gene
Acquired
Hypocalcemic Hypercalciuria
PTH Ineffective
Vitamin D Deficiency
Defective Vitamin D Metabolism
Anticonvulsant Ingestion (induces acquired vitamin D deficiency by increasing metabolism to inactive compounds )
Active Vitamin D Resistance
PTH Excess
Fanconi Syndrome
Tumor Lysis Syndrome
Other
Alkalosis
Theophylline Toxicity