scintigraphy using Tc-99m pertechnetate

Question Number 1598

Question:
in thyroid scintigraphy using Tc-99m pertechnetate

a) maximum thyroid uptake is at about 20 seconds
b) incidental uptake in the choroid plexus is normal
c) the target-to-background ratio is less favorable than with iodine
d) malignant lesions that are hot on Tc-99m pertechnetate are likely to be cold on radioiodine
e) the agent is mostly excreted in the urine

Labels: ,



>>>> Post your Answer Here ????



Design by Up2date.us