Question

which of the following diagnostic procedures uses ultrasound?
a radioimmunoassay
b thyroid echography
c thyroid function test
d thyroid scan

Explanation:

• Radioimmunoassay is a laboratory technique that uses radioactive substances to measure the concentration of a substance in a sample. It does not use ultrasound.
• Thyroid echography (also known as thyroid ultrasound) uses high - frequency sound waves (ultrasound) to create images of the thyroid gland.
• Thyroid function tests are blood tests that measure the levels of thyroid hormones (such as T3, T4, and TSH). They do not use ultrasound.
• Thyroid scan typically uses radioactive iodine or technetium to visualize the thyroid gland. It does not use ultrasound.

Answer:

B. thyroid echography