UKMLA PLAB AMC USMLE Prometric MCQ

a) the specificity for detecting parathyroid adenomas is less than 80%
b) thallium is usually injected after the technetium
c) a non-ionic contrast media reduces the uptake of Technetium by the thyroid
d) is not useful for evaluating parathyroid hyperplasia
e) thallium is not taken up by parathyroid glands