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Thyroid Uptake Systems

Definition : Systems designed to measure the amount of radioactive iodine in the thyroid gland after a predetermined length of time following ingestion (i.e., thyroid uptake). These systems typically consist of a detector system (composed of a scintillation crystal and a photomultiplier tube), collimators, a high-voltage power supply, amplifiers, a pulse-height analyzer, and a display unit; many systems include computerized capabilities for data processing. Thyroid uptake systems are used to assess thyroid gland activity; the normal range for thyroid uptake 24 hours after administration varies from 13% to 33%.

Entry Terms : "Uptake Systems, Thyroid"

UMDC code : 16567

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