Hyperthyroidism is a well known cause of hypercalcemia but hypercalcemic crisis is very rare. The underlying mechanisms are still not clear. Thyroid hormone may have a role in stimulating bone turnover. A 63 year old lady presented with decreased level of consciousness with background history of vomiting, loss of apetite and weight loss. Her blood investigations revealed severe hypercalcemia with raised T3, T4 and low TSH. A final diagnosis of Graves’ disease was made and patient was treated conservatively for correction of calcium with diuretics and intravenous fluids; and antithyroid treatment was started. She improved and was discharged.
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2022: 6.012
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