[Being biased].

Thyroid storm is an acute, life-threatening exacerbation of hyperthyroidism. It is crucial that patients receive immediate intensive medical care. In this case, we were initially misled by the patient's drug history, the paramedics' report and our own experience. It is important not to let yourself be biased by a history of drug abuse. Had the diagnosis in this patient been missed for longer, the outcome could have been fatal.