P13: L5 - X-Rays in Medicine

Which of these is NOT true about the x-ray tube for production of x-ray?

• a vacuumed glass tube is used to prevent electron from hitting the air molecules.

• the cathode consists of heated filament with high ionization energy.

• cooling system is required at the anode metal target in order to prevent the metal from melting

• the metal target of anode should be metal with high melting point.

Which one of these images is an X - Ray?

• 
• 
• 
• 

What are X - Rays used for?

• Scanning Luggage

• Broken Bones

• Checking to see if your shoelaces are untied

• Checking for cavities

What disease can an X - Ray cause?

• Dyslexia

• Cancer

• Diabetes

• Polio

X - Rays use ___________ radiation

• Cosmic

• Electromagnetic

• Neutron

• Alpha

Who performs an X - ray?

• Cardiologist

• Radiologist

• Ophthalmologist

• Biologist

X-rays & CT-scans are safe and prevent doctors from having to do unnecessary surgery.

• True
• False

When x-rays strike a patient tissues, ionization occurs.

• True

• False

When should the dental assistant hold the film in the patient's mouth during exposure?

• For young children

• for patients with disabilites

• for edentulous patients when the exposure time is less

• never

Who is responsible when prescribing x-rays?

• Dental assistant

• Dentist

• Dental hygienist