What is the total volume activity of 8 mL of 99mTc eluate with a concentration of 2.0 MBq/mL?

To determine the total volume activity of the 99mTc eluate, you need to calculate the total activity by multiplying the volume of the solution by its concentration. In this case, you have 8 mL of eluate and its concentration is 2.0 MBq/mL.

The calculation is straightforward:

Total activity = Volume (mL) × Concentration (MBq/mL)

Substituting the values:

Total activity = 8 mL × 2.0 MBq/mL = 16 MBq

Thus, the total volume activity of the 99mTc eluate is 16 MBq. This method of calculating total activity is essential in nuclear medicine, as it allows healthcare professionals to determine the amount of radioactivity present in a given volume of a radiopharmaceutical, which is critical for safe and effective patient dosing.