Radiation protection for the interventional cardiologist: Practical approach and innovations

Table 2 Regulatory limit on occupational radiation exposure and the current status with respect to the limit

Type of dose limit	Limit on dose from occupational exposure1
Effective dose	20 mSv/yr averaged over 5 consecutive years and 50 mSv in a single year
Effective dose on pregnancy	The dose to embryo/fetus should not exceed 1mV during remainder of pregnancy
Equivalent dose: Lens of the eye	20 mSv/yr averaged over 5 consecutive years and 50 mSv in a single year
Equivalent dose: Skin	500 mSv/yr
Equivalent dose: Extremities (hands and feet)	500 mSv/yr

¹Occupational Exposure: Planned exposure situations where radiological protection can be planned in advance, and exposures can be reasonably predicted.

Dose limits recommended by international commission on radiological protection (ICRP)[52].