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← ScienceWhich consequence results when iodine-131 accumulates in a thyroid?
A)Radioactive beta emission decreases cellularity
B)Iodine uptake saturates thyroid hormones
C)Tissue damage through radioactive decay✓
D)Alpha particles induce rapid proliferation
💡 Explanation
Tissue damage follows iodine-131 accumulation because radioactive decay produces energetic particles which ionize the cells. Therefore, cellular dysfunction happens rather than beta decay, leading to a saturating uptake affecting short term hormone levels.
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