Imaging Tests for diagnosing hyperthyroidism
1. Radioactive iodine uptake (RAIU) test: pt. takes a small dose of radioactive iodine to see how much the thyroid absorbs, followed by a scan to check the absorbed amount
2. Thyroid scan: measures absorbed radioactivity by the thyroid, looking for lumps, nodules, inflammation, swelling, goiter, or thyroid cancer
3. Thyroid ultrasound: uses sound waves to create images of the thyroid, allowing the provider to look for nodules