Radiology Exam Verified Questions with CORRECT Answers (Grade A+)
Question 1:
Define the characteristics of a dental x ray.
Answer:
Dental x rays can cause damage to living cells. Long wavelengths have less ability to penetrate matter.
Question 2:
Define primary, secondary, scatter, and leakage radiation.
Answer:
Primary- All radiation produced directly from the target in an x ray tube. Secondary- X radiation
created when primary beam interacts with matter. Scatter- A form of secondary radiation that occurs
when an x ray beam has been deflected from its path by interaction with matter. Leakage- The escape
of radiation through the protective shielding of the x ray unit tube head. This radiation is detected at
the sides, top, bottom or back of the tube head. It does not included the useful beam.
Question 3:
What does ALARM mean and why is it important?
Answer:
As Low As Reasonably Achievable. Every method possible should be used to decrease risk exposure.
Question 4:
Explain the differences between chronic, acute, and latent exposure.
Answer:
Chronic- Occurs when small amounts of radiation are absorbed repeatedly over a long period of time.
Acute- occurs when a large does of radiation is absorbed in a short period of time. Latent- Time
between exposure to ionizing radiation and appearance of symptoms.
Question 5:
Explain why patients wear a lead apron and thyroid collar when exposed to dental x rays?
Answer:
, To protect the patients vital organs from scatter radiation.
Question 6:
What can we use to monitor radiation exposure in the dental office if concerned of overexposure?
Answer:
Dosimeter ( film badge)
Question 7:
Dental x ray equipment is monitored on a regular basis. What would be the concerns to monitor the x
ray unit?
Answer:
Yearly. To check for leakage
Question 8:
What distance is considered safe from the primary beam when x ray is being exposed?
Answer:
6 feet
Question 9:
Explain why the person taking the x ray would avoid offering to hold the x ray in place?
Answer:
It increases your risk of radiation exposure
Question 10:
Name the three consistent parts to a dental x ray unit.
Answer:
Tube head, extension arm and control panel
Question 11:
Name the materials the filter and collimator are made from.
Answer:
Question 1:
Define the characteristics of a dental x ray.
Answer:
Dental x rays can cause damage to living cells. Long wavelengths have less ability to penetrate matter.
Question 2:
Define primary, secondary, scatter, and leakage radiation.
Answer:
Primary- All radiation produced directly from the target in an x ray tube. Secondary- X radiation
created when primary beam interacts with matter. Scatter- A form of secondary radiation that occurs
when an x ray beam has been deflected from its path by interaction with matter. Leakage- The escape
of radiation through the protective shielding of the x ray unit tube head. This radiation is detected at
the sides, top, bottom or back of the tube head. It does not included the useful beam.
Question 3:
What does ALARM mean and why is it important?
Answer:
As Low As Reasonably Achievable. Every method possible should be used to decrease risk exposure.
Question 4:
Explain the differences between chronic, acute, and latent exposure.
Answer:
Chronic- Occurs when small amounts of radiation are absorbed repeatedly over a long period of time.
Acute- occurs when a large does of radiation is absorbed in a short period of time. Latent- Time
between exposure to ionizing radiation and appearance of symptoms.
Question 5:
Explain why patients wear a lead apron and thyroid collar when exposed to dental x rays?
Answer:
, To protect the patients vital organs from scatter radiation.
Question 6:
What can we use to monitor radiation exposure in the dental office if concerned of overexposure?
Answer:
Dosimeter ( film badge)
Question 7:
Dental x ray equipment is monitored on a regular basis. What would be the concerns to monitor the x
ray unit?
Answer:
Yearly. To check for leakage
Question 8:
What distance is considered safe from the primary beam when x ray is being exposed?
Answer:
6 feet
Question 9:
Explain why the person taking the x ray would avoid offering to hold the x ray in place?
Answer:
It increases your risk of radiation exposure
Question 10:
Name the three consistent parts to a dental x ray unit.
Answer:
Tube head, extension arm and control panel
Question 11:
Name the materials the filter and collimator are made from.
Answer:
