22 Questions
What is the most common cause of hyperthyroidism?
Graves disease
What is the characteristic autoimmune disorder associated with hyperthyroidism?
Graves disease
What is the gender predilection for Graves disease?
Affects women eight times more frequently than men
What are the common clinical manifestations of hyperthyroidism?
Anxiety, tachycardia, heat intolerance, weight loss
What is the main reason for the increase in metabolic rate in hyperthyroidism?
Excessive synthesis and secretion of thyroid hormones
Which of the following is not a common cause of hyperthyroidism?
Hypothyroidism
What is the age range for the onset of Graves disease?
Between the second and fourth decades
What is the main reason for the appearance of hyperthyroidism after an emotional shock or stress?
Exact significance of these relationships is not understood
What is the primary cause of hyperthyroidism resulting from an excessive synthesis and secretion of thyroid hormones?
Graves disease
What is the characteristic effect on the heart in patients with hyperthyroidism?
Tachycardia and palpitations
Which of the following is a common symptom of hyperthyroidism?
Heat intolerance
What ocular manifestation may patients with Graves disease present with?
Reduced blinking and lid retraction
What changes in menstruation may women with Graves disease experience?
Oligomenorrhea
What cardiac effects may be related to increased sensitivity to catecholamines in patients with Graves disease?
Sinus tachycardia and arrhythmias
What may occur if hyperthyroidism in Graves disease is severe and untreated?
Myocardial hypertrophy and heart failure
What may be a cause of symptoms of hyperthyroidism in Graves disease?
Excessive administration of thyroid hormone for the treatment of hypothyroidism
What is a sign of greatly increased blood flow through the thyroid gland in Graves disease?
A thrill often palpated and a bruit heard over the thyroid arteries
How is the diagnosis made in advanced cases of Graves disease?
Symptoms, decreased serum TSH, increased free T4, and increased radioactive iodine uptake
What may be a consequence of long-standing use of thyroid hormone in Graves disease?
Premature osteoporosis
What may occur with the release of excessive amounts of thyroid hormone in Graves disease?
Inflammation after irradiation of the thyroid or destruction of thyroid tissue by tumor
What may be a consequence of untreated Graves disease?
The untreated person becoming emaciated, intensely nervous, delirious, and even disoriented; eventually, the heart fails
What may be a characteristic of the course of Graves disease?
Mild, characterized by remissions and exacerbations, and may terminate with spontaneous recovery
Test your knowledge of hyperthyroidism with this quiz. Learn about the causes, symptoms, and treatment options for this common endocrine disorder.
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