Which measures are required if the operator must remain in the radiography room during an exposure?

• A. 1 and 2
• B. 1 and 3
• C. 2 and 3
• D. 1, 2, and 3

Answer: (D)

When the operator must stay in the room during exposure, protection comes from combining shielding, distance, and monitoring. Wearing protective shielding (like a lead apron and thyroid shield) directly reduces the dose to vital organs. Maximizing distance from the beam and using available barriers lessens exposure further, since radiation intensity falls off with distance and barriers interrupt scattered radiation. And keeping a dosimeter on ensures you track the actual exposure so you stay within safety limits and can adjust practices if needed. All three measures work together, so taking each one into account provides the best protection in this scenario.