Degree of severity: Thyrotoxicosis means thyroid hormone levels are high - due to hyperthyroidism, excess thyroid hormone intake, thyroiditis. Thyroid storm is a life threatening emergency due to very high thyroid hormone levels (almost always due to hyperthyroidism) which causes hyperthermia, rapid heart rate, confusion, liver dysfunction.
Answered 3/28/2012
5.9k views
Yes: Thyroid storm is really an extreme of thyrotoxicosis. It is life-threatening and can cause high fever in addition to the other symptoms seen in thyrotoxicosis.
Answered 4/11/2014
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