radioactive iodine test
- noun
- /ˌreɪdiəʊˈæktɪv ˈaɪədaɪn tɛst/
- Specialized
- Before her surgery, she underwent a radioactive iodine test to assess her thyroid function.
Examples
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The doctor ordered a radioactive iodine test to check for an overactive thyroid.
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A radioactive iodine test is often used to help diagnose thyroid disorders.
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The doctor recommended a radioactive iodine test for further evaluation.
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Have you ever had a radioactive iodine test?
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A radioactive iodine test is often used to help diagnose thyroid disorders.
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Before her surgery, she underwent a radioactive iodine test to assess her thyroid function.
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The doctor ordered a radioactive iodine test to check for an overactive thyroid.
Synonyms
A test that measures how much radioactive iodine the thyroid takes to see how well it works
A test that measures how much radioactive iodine the thyroid takes in to check how well it works
Surface Forms
Morphology
radioactive + iodine + test
The phrase is compositionally transparent: it denotes a 'test' that uses 'radioactive iodine'—combining the literal meanings of 'radioactive' (emitting radiation), 'iodine' (the element) and 'test'. This adjective+noun+noun construction follows regular compositional patterns and would be understandable to a B1 learner who knows the constituent words, even if the precise medical details (isotope, procedure) are technical.
Etymology
The noun radioactive iodine test comes from giving a very small amount of radioactive iodine to a person and then measuring how much the thyroid 'takes up'. Because the thyroid 'takes up' iodine when it is active, the test shows how well the thyroid is working.