<prompt> Radionucleide of choice for the assessment of renal function?MIBGDTPAThalliumSulphur  <response>: Ans: b DTPA Ref: Bailey, 24th ed, p. 129999Tc DTPA diethyl triamino penta acetic acidUseful to assess the functional status of kidney.DTPA behaves like inulin: completely filtered by the glomeruli, and not absorbed by the tubules. On using a gamma camera the dynamic action of kidney can be assessed.Other substances used are -M AG3, DMSA, and hippuran.Radionuclide scans and their uses. DTPA - dynamic function of kidney. Tc labeled RBC- splenic diseases DMSA -cortical function PET scan-functional brain imaging Orthohippurate - renal plasma flow. Tc pyrophosphate-acute MI, hot spots. 99Tc HID A scan - acute cholecystitis 99Tc MDP-bone imaging SeleniumI131 - thyroid Gallium tumours Tc-thallium substraction scan-parathyroid Xenon gas-ventilation-perfusion scan Selenium - pancreas 99Tc arcitumumab-colorectal cancer. I131 I132. -Placenta MUGA scan-ventriculography. 