Radiation Protection

What is the primary goal of radiation protection?

• Increase image quality

• Reduce imaging time

• Minimize exposure to ionizing radiation

• Prevent non-ionizing radiation effects

Radiation protection is a responsibility for whom?

• Only radiologists

• Only patients

• All imaging professionals

• Only hospital management

What are common sources of radiation in medicine?

• MRI and ultrasound

• X-rays, CT scans, and fluoroscopy

• Endoscopy and colonoscopy

• Laser therapy

What is the main characteristic of deterministic effects?

• They occur randomly

• They only happen after a threshold dose is exceeded

• They are not dose-related

• They always cause cancer

Which effect has no threshold and is probabilistic in nature?

• Deterministic

• Acute

• Chronic

• Stochastic

What does ALARA stand for?

• All Levels Are Radiation Acceptable

• As Low As Reasonably Achievable

• Atomic Level Assessment of Radiation

• Advanced Lead Apron Radiation Approach

What principle ensures that every radiation procedure has a net benefit?

• Optimization

• Filtration

• Justification

• Collimation

Optimization in radiation protection means:

• Using the highest possible radiation dose

• Using the lowest possible dose that achieves quality imaging

• Avoiding all radiation procedures

• Ignoring equipment settings

What is the occupational effective dose limit according to ICRP?

• 50 mSv per year

• 20 mSv per year averaged over 5 years

• 5 mSv per year

• 10 mSv per month

Dosimeters are used to:

• Improve image contrast

• Monitor radiation exposure of personnel

• Enhance patient comfort

• Increase imaging frequency