lab in thyroid storm

Q: Which is more common in thyroid storm?

A) hypercalcemia

B) hypocalcemia

Answer: A

The usual lab findings in thyroid storm are:

• low TSH 
• high free T4 and/or T3 
• mild hyperglycemia 
• mild hypercalcemia 
• deranged liver function test
• either leukocytosis or leukopenia

#endocrinology

Reference:

Nayak B, Burman K. Thyrotoxicosis and thyroid storm. Endocrinol Metab Clin North Am 2006; 35:663.