Radiation Safety in Medical Imaging

What is the primary goal of radiation safety in medical imaging?

• To increase radiation exposure for better imaging

• To protect only patients from radiation

• To ensure protection from unnecessary exposure for patients, workers, and the public

• To eliminate all radiation use in medicine

Which type of radiation is primarily used in diagnostic imaging?

• Non-ionizing radiation

• Ultraviolet rays

• Ionizing radiation

• Microwave radiation

Why is radiation safety especially important in fluoroscopy?

• It does not involve X-rays

• It uses non-ionizing radiation

• It involves continuous or pulsed exposure, leading to higher doses

• Fluoroscopy is rarely used in clinical practice

Which of the following is non-ionizing radiation?

• Gamma rays

• Visible light

• X-rays

• Alpha particles

What property allows X-rays to image internal structures but also cause cellular damage?

• Their color

• Their mass

• Their penetrative ability

• Their temperature

How are X-rays produced in an X-ray tube?

• By heating a gas

• By compressing a metal

• By electron deceleration on a metal target

• By radio wave emission

What is the role of the image intensifier in fluoroscopy?

• It increases radiation exposure

• It converts images into 3D

• It enhances image brightness for real-time viewing

• It stores previous images

Which of the following is a deterministic effect of radiation?

• Genetic mutation

• Cancer

• Skin burns

• Leukemia

What unit measures the absorbed dose of radiation?

• Sievert

• Becquerel

• Coulomb

• Gray (Gy)

Which procedure typically has the highest radiation dose?

• Chest X-ray

• CT abdomen

• Ultrasound

• MRI