Under ICRP recommendations, what is the additional effective dose limit to the EMBRYO OR FETUS for a pregnant radiation worker during the remainder of the pregnancy once pregnancy is declared?

• A 1 mSv ✓
• B 5 mSv
• C 20 mSv
• D 50 mSv

Explanation

Once a worker declares pregnancy, the dose to the embryo or fetus should not exceed approximately 1 mSv for the remainder of gestation. The 20 mSv figure applies to the whole body of adult occupationally exposed workers averaged over five years, and 50 mSv is the single-year occupational ceiling. Declared pregnancy triggers this separate, stricter fetal limit precisely because of the heightened radiosensitivity of the developing embryo.

Reference: ICRP Publication 103, 2007 Recommendations ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

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