ABSTRACT
INDICATIONS ■ Indications for thyroid function tests are listed in Table 2. ■ An algorithm for evaluating high or low levels of TSH is
given in Figure 1.
FURTHER EVALUATION ■ Hyperthyroidism
▲ Radioiodine uptake with or without scan ■ Thyroid nodule
▲ Fine-needle aspiration biopsy of palpated nodule ■ Hypothyroidism
▲ Antithyroid antibodies • If positive, consider Hashimoto thyroiditis. • If negative, consider a non-Hashimoto cause.
