Question
A 40-year-old woman is referred from a PHC for the evaluation of nodular thyroid enlargement. As part of the evaluation, she is planned for a radio uptake scan. Which of the following isotopes is not used in this test?
| A. | Iodine 123 |
| B. | Iodine 124 |
| C. | Tc 99m |
| D. | Iodine 127 |
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