Which of the following formulas is used to calculate effective dose?
1)EfD = (D × WR)₁ + (D × WR)₂ + (D × WR)₃
2)EfD = D × WR × WT
3)EfD = D ÷ WR × WT

Question

Quizplus · Accepted Answer

Effective dose (EfD) is calculated by multiplying the absorbed dose (D) by the radiation weighting factor (WR) and the tissue weighting factor (WT), so the correct formula is EfD = D × WR × WT, which is shown in option 2. Option 1 is incorrect because it only includes the radiation weighting factor and not the tissue weighting factor. Option 3 is incorrect because it divides the absorbed dose by the radiation weighting factor, which is not the correct method for calculating effective dose.

Which of the Following Formulas Is Used to Calculate Effective