NVQ Level 3 Dental Nursing Practice Exam

Minimizing radiographic risk relies on applying ALARA—keeping exposure as low as reasonably achievable. The fetus is more sensitive to ionizing radiation, especially in early pregnancy, so when imaging is necessary you reduce dose as much as possible by using the fastest, most dose-efficient technique and the smallest feasible beam. Digital radiography helps here because it requires less exposure to produce a diagnostic image than traditional film. Shielding with a lead apron over the abdomen and a thyroid collar protects sensitive tissues from scatter radiation. Whenever feasible, consider alternatives that do not involve ionizing radiation, or defer radiographs until imaging is essential and safer. Also ensure proper collimation to limit the irradiated area and use the minimum number of radiographs needed to achieve the diagnosis.