Final answer:
Lead aprons should be inspected annually for defects such as cracks or holes according to the NCRP, with visual inspections prior to each use.
Step-by-step explanation:
Lead aprons are protective garments used in medical settings to shield the body from the harmful effects of ionizing radiation, particularly in radiography or fluoroscopy procedures. According to the National Council on Radiation Protection and Measurements (NCRP), lead aprons should be inspected annually for defects such as cracks or holes. However, it is also recommended that they be visually inspected for damage prior to each use. If any sign of damage is observed, the apron should be further evaluated and removed from service if necessary. It is important to follow the specific guidelines of your facility and local regulations, as some might require more frequent checks.