A 30-year-old clinical laboratory science student complains of being tired but is not able to sleep.The woman also states that her hair has been breaking off,and she has lost 20 pounds over the past 2 months without trying.The woman's pulse and blood pressure are elevated,and her eyes seem to be bulging.Her complete blood count (CBC)is normal,thyroid-stimulating hormone is decreased,and T4 is increased.Antimicrosomal and antithyroglobulin antibodies are each 1:400.This woman most likely has:

Question

Quizplus · Accepted Answer

The symptoms and lab results suggest hyperthyroidism, which is most commonly caused by Graves disease. The elevated T4 and decreased TSH levels also support this diagnosis. The presence of high levels of antimicrosomal and antithyroglobulin antibodies is consistent with autoimmune thyroid disease, but the pattern of symptoms and lab findings suggest Graves disease over Hashimoto's thyroiditis. Addison's disease and type 1 diabetes would not present with the same pattern of symptoms and lab results.

A 30-Year-Old Clinical Laboratory Science Student Complains of Being Tired