Answer Happy

It is Friday late in the afternoon. The nuclear medicine department is about to close for the weekend. You have been called by the newly hired registrar to the radiochemistry lab for a radioactive spill. Unfortunately, the person does not know which radioisotope was spilled. As a matter of fact, you know that in that particular area of the lab the personnel only work with Tc-99m and Y-90 labelled radiopharmaceuticals. a) Why is it important to know which radioisotope was spilled? (2 marks) b) How would you determine whether it's been a Tc-99m spill only, Y-90 spill only, or both? (3 marks) c) Assume the lab is closed for the weekend and that the spill was Tc-99m only. How would you proceed and address this radiation hazard? (2 marks)