Nephrology MCQs-9


Most common glomerular agent used for imaging


A. Tc-99m DMSA

B. Tc-99m DTPA

C. Tc-99m MAG3

D. Diuretic renography



Which is most commonly useful to measure GFR


A. Tc-99m DMSA

B. Tc-99m DTPA

C. Tc-99m MAG3

D. Diuretic renography



In patients with poor renal function, renal imaging with which tubular secretion agents is preferred


A. Tc-99m DMSA

B. Tc-99m DTPA

C. Tc-99m MAG3

D. Diuretic renography



99mTc-labeled MAG3 is handled primarily by


A. Tubular secretion

B. Tubular Retention

C. Glomerular Filtration

D. Diffusion



Which agents provide excellent cortical imaging?


A. Tubular secretion

B. Tubular Retention

C. Glomerular Filtration

D. Diffusion



Which is superior to 99mTc-DTPA in patient with poor kidney function as Glomerular filtration agents to measure glomerular filtration rate


A. Tc-99m DMSA

B. 131I-OIH

C. Tc-99m MAG3

D. Technetium 99 dimercaptosuccinate



What are the categories of radiotracers used in kidney imaging?


Glomerular filtration agents to measure glomerular filtration rate:


  1. Technetium 99 diethylenetriamine pentaacetic acid (99mTc-DTPA)
  2. Technetium 99 mercaptoacetyl triglycine (99mTc-MAG3)
  3. Iodine 131 o-iodohippurate (131I-OIH; mainly historical)
  4. 99mTc-MAG3 is superior to 99mTc-DTPA in patient with poor kidney function

Tubular secretion agents to estimate effective renal plasma flow:


  1. 99mTc-MAG3
  2. 131I-OIH

Tubular retention agents used for cortical imaging (has some utility particularly in pediatrics for pyelonephritis evaluation):


  1. Technetium 99 dimercaptosuccinate
  2. Technetium 99 glucoheptonate (not often used anymore)
  3. 99mTc-DTPA and 99mTc-MAG3 can both be used to evaluate transplant dysfunction

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