This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: GIT and hepatobiliary system, Subject name: Radiology
Radiopharmaceutical used for the liver scan is 
Select and explain. 
A. Tc-99m sulphur colloid, B. Tc-99m mebrofenin, C. Tc-99m MIBI, D. Tc-99m DTPA
A: Tc-99m sulphur colloid
Answer: A: Tc-99m sulphur colloid 
Explanation: Tc-99m sulphur colloid is used in liver scan.Tc-99m DTPA measurement of GFR.Tc99m-sestamibi is taken up by cells with a high concentration of mitochondria i.e. highly cellular/metabolically active tissues such as the hea but also abnormal tissues such as oxyphil cell parathyroid adenomas, myeloma and breast cancer.