Question

Test for a recent indicator of Iodine intake and its flaw:

a) Urinary iodine concentration test; affected by hydration status
b) Serum thyroglobulin test; not specific to iodine intake
c) Serum T3 and T4 levels; affected by temperature
d) Thyroid ultrasound; influenced by dietary iodine intake

Answer 1

There are several tests for recent indicators of iodine intake and their flaws. The urinary iodine concentration test is affected by hydration status, the serum thyroglobulin test is not specific to iodine intake, the serum T3 and T4 levels are affected by temperature, and the thyroid ultrasound is influenced by dietary iodine intake.

Step-by-step explanation:

There are several tests for recent indicators of iodine intake and their flaws. The urinary iodine concentration test is affected by hydration status, the serum thyroglobulin test is not specific to iodine intake, the serum T3 and T4 levels are affected by temperature, and the thyroid ultrasound is influenced by dietary iodine intake.

For example, the urinary iodine concentration test may not be accurate if a person is dehydrated or overhydrated. Similarly, the serum thyroglobulin test is not a direct measure of iodine intake and can be elevated in various conditions unrelated to iodine status.

It is important to consider these factors when interpreting the results of these tests.