PERCHLORATE-DISCHARGE TEST "THIS TEST IS USED TO STUDY PATIENTS WITH SUSPECTED DEFECTS IN IODIDE ORGANIFICATION" 123I CAPSULE 1.PROCEDURE+EXAMINATION TIME123I CAPSULE (TAKEN BY MOUTH) -(2HOURS) UPTAKE. (3HR POST 123I ADMINISTRATION), (THYROID UPTAKE), (PRESET TIME=2MIN), (SUPINE), (ANT), (CAPSULE CALIBRATED WITH PHANTOM), (A BACKGROUND ACTIVITY AT THE KNEE JOINT), (I WINDOW 159KEV, 20%), (TOTAL TIME=6MIN) -THEN GIVE BY MOUTH 1 GRAM (LUGOL'S), FOR CHILDREN 0.6GRAM.((1gram/60ml)) (30MIN&60MIN POST 123I ADMINISTRATION), (THYROID UPTAKE), (PRESET TIME=2MIN), (SUPINE), (ANT), (CAPSULE CALIBRATED WITH PHANTOM), (A BACKGROUND ACTIVITY AT THE KNEE JOINT) -30MIN & 60MIN CALCULATION OF 123I UPTAKE IS PERFORMED. -IF LOSS OF 50% OR MORE = POSITIVE DISCHARGE TEST. 2.DOSE : 123I =2CAPSULES = (7.4MBq(0.2mCi)) *POSITIVE PERCHLORATE DISCHARGE TEST -CONGENITAL ORGANIFICATION DEFECTS -HASHIMOTO'S THYROIDITIS. |