Final answer:
The NCRP recommends a gestational dose-equivalent limit of 0.5 mSv per month, equating to a total of 5 mSv during the entire gestation period, for pregnant radiographers to protect the embryo/fetus.
Step-by-step explanation:
The gestational dose-equivalent limit for an embryo/fetus of a pregnant radiographer, as recommended by the National Council on Radiation Protection and Measurements (NCRP), is 0.5 millisieverts (mSv) per month after pregnancy is declared. This equates to a limit of 5 mSv for the entire gestation period. It's important for pregnant radiographers to adhere to this limit to protect the developing fetus from potential harm due to radiation exposure. Radiation protection strategies such as shielding, distance, and time are crucial to minimize exposure.