Hyperthyroidism (low TSH, High T4/T3) - Diagnostic Algorithm



Radioactive iodine scan – get if concern for nodular thyroid disease!

Remember – contraindicated if pregnant or breast feeding!

Graves disease – TRAB 97-99% sensitive and specific, so if positive, you’ve diagnosed Graves disease!

Key teaching point: Check pregnancy test immediately because pregnancy affects diagnostic workup choices AND management options (see below)!



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