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Infection Control · single question

How should operators protect themselves from X-ray radiation in the office?

  1. Use a dosimeter
  2. Use a lead apron on themselves while exposing the patient
  3. Stand directly behind the patient during exposure
  4. Hold the X-ray tube head manually during exposure
Show answer and explanation

Correct answer: A. Use a dosimeter

  • A. Correct. A personal dosimeter monitors the operator's cumulative radiation exposure over time, helping ensure they remain within safe occupational exposure limits — a key personal protection/monitoring tool.
  • B. Lead aprons are used on PATIENTS for protection; operators should instead maintain distance and use barriers/positioning rather than wearing a lead apron themselves during exposure (operators should step outside the direct beam path/behind a barrier).
  • C. Operators should NOT stand directly behind the patient in the primary beam path during exposure; proper distance and positioning behind a barrier or at a safe angle/distance (commonly 6 feet, behind a wall, or at a 90-135 degree angle from the beam) is required.
  • D. Manually holding the tube head/film during exposure is contraindicated, as it would expose the operator's hands directly to radiation.

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