2026//RADIOLOGY
RADIOLOGY FINAL
FINAL EXAM
EXAM REVIEW
REVIEW FOR
FOR CH
CH 4-6
4-6 (LATEST
(LATEST 2025-2026
2025-2026 UPDATE)
UPDATE) QUESTIONS
QUESTIONS WITH
WITH CORRECT
CORRECT
/2026
ANSWERS
ANSWERS
- accurate RATED
RATED
answersA+accurate
A+.pdf
with solution
answers w
RADIOLOGY FINAL EXAM REVIEW FOR CH 4-6 (LATEST
2025/2026 UPDATE) QUESTIONS WITH CORRECT
ANSWERS RATED A+
Short term effects of radiation
Associated with large doses of radiation in a short amount of time
Acute radiation syndrome (ARS)
Includes nausea, vomiting, diarrhea, hair loss, hemorrhage
Short-term effects are not applicable to dentistry.
Following the latent period, effects that are seen within minutes, days, or weeks are
termed
Short term effects of radiation
Note: Short-term effects are not applicable to dentistry.
Long term effects of radiation
-Small doses absorbed repeatedly over a long period of time
-Effects seen after years, decades, or generations
-Repeated low levels of radiation exposure are linked to the induction of cancer, birth
abnormalities, and genetic defects.
All the cells in the body can be classified as either ______________ or
______________
Somatic or Genetic
Somatic effects of radiation
Changes to the exposed individual that are not passed on to offspring
Genetic Effects of Radiation
changes that are passed on to the next generation due to radiation in gonads
26 UPDATE)
RADIOLOGY
QUESTIONS
FINAL
WITH
EXAM
CORRECT
REVIEWANSWERS
FOR CH 4-6
RATED
(LATEST
A+.pdf/
2025-2026
2026- real
Page
UPDATE)
exam-style
1 of 16
QUESTIONS
questions,WITH
detailed
CORRECT
explanations,
ANSWERS
and accurate
RATEDanswers
A+ with solution
, 2026//RADIOLOGY
RADIOLOGY FINAL
FINAL EXAM
EXAM REVIEW
REVIEW FOR
FOR CH
CH 4-6
4-6 (LATEST
(LATEST 2025-2026
2025-2026 UPDATE)
UPDATE) QUESTIONS
QUESTIONS WITH
WITH CORRECT
CORRECT
/2026
ANSWERS
ANSWERS
- accurate RATED
RATED
answersA+accurate
A+.pdf
with solution
answers w
A cell that is sensitive to radiation is termed _____________; one that is resistant is
termed ______________.
radiosensitive, radioresistant
Cells that divide frequently or undergo many divisions over time are more sensitive to
radiation.
mitotic activity
Cells that are immature or are not highly specialized are more sensitive to radiation.
cell differentiation
Cells that have a higher metabolism are more sensitive to radiation.
cell metabolism
Cells that are radiosensitive include blood cells, immature reproductive cells, and young
______ cells
Bone
The cell that is most sensitive to radiation is the small ________________________
Lymphocyte
Radioresistant cells include cells of _________, __________, __________
Bone, Muscle & nerve cells
In dentistry, some tissues and organs are designated as "___________" because they
are exposed to more radiation than are others during imaging procedures.
Critical
A Critical organ is
is an organ that, if damaged, diminishes the quality of a person's life.
Critical organs exposed during dental imaging procedures in the head and neck region
include the following:
* Thyroid gland
• Bone marrow
• Skin
• Lens of the eye
The term exposure refers to
refers to the measurement of ionization in air produced by x-rays.
The traditional unit of exposure for x-rays is
Roentgen (R)
The roentgen is a way of measuring radiation exposure by determining the amount of
ionization that occurs in air
radiation exposure on cells, tissues, and organs and identify the relative sensitivity of a
given tissue to x-radiation.
26 UPDATE)
RADIOLOGY
QUESTIONS
FINAL
WITH
EXAM
CORRECT
REVIEWANSWERS
FOR CH 4-6
RATED
(LATEST
A+.pdf/
2025-2026
2026- real
Page
UPDATE)
exam-style
2 of 16
QUESTIONS
questions,WITH
detailed
CORRECT
explanations,
ANSWERS
and accurate
RATEDanswers
A+ with solution
, 2026//RADIOLOGY
RADIOLOGY FINAL
FINAL EXAM
EXAM REVIEW
REVIEW FOR
FOR CH
CH 4-6
4-6 (LATEST
(LATEST 2025-2026
2025-2026 UPDATE)
UPDATE) QUESTIONS
QUESTIONS WITH
WITH CORRECT
CORRECT
/2026
ANSWERS
ANSWERS
- accurate RATED
RATED
answersA+accurate
A+.pdf
with solution
answers w
units of measurement used in radiation exposure.
total dose
Quantity of radiation received, or the total amount of radiation energy absorbed. More
damage occurs when tissues absorb large quantities of radiation.
An example of total-body irradiation is the exposure of a person to a nuclear energy
disaster. Extensive radiation injury occurs when large areas of the body are exposed
because of the damage to the _____________-________________ tissues.
Blood-forming
The radiation absorbed dose, or _______, is the traditional unit of dose.
RAD
---A special unit of absorbed dose that is equal to the deposition of 100 ergs of energy
per gram of tissue (100 erg/g)
RAD (Radiation absorbed dose)
Cell sensitivity
More damage occurs in cells that are most sensitive to radiation, such as rapidly
dividing cells and young cells
Cell sensitivity
More damage occurs in cells that are most sensitive to radiation, such as rapidly
dividing cells and young cells
Different types of radiation have different effects on tissues. The __________
_____________________ measurement is used to compare the biologic effects of
different types of radiation.
Dose Equivalent
Dose Rate
Rate at which exposure to radiation occurs and absorption takes place (dose rate =
dose/time). More radiation damage takes place with high dose rates because a rapid
delivery of radiation does not allow time for the cellular damage to be repaired.
26 UPDATE)
RADIOLOGY
QUESTIONS
FINAL
WITH
EXAM
CORRECT
REVIEWANSWERS
FOR CH 4-6
RATED
(LATEST
A+.pdf/
2025-2026
2026- real
Page
UPDATE)
exam-style
3 of 16
QUESTIONS
questions,WITH
detailed
CORRECT
explanations,
ANSWERS
and accurate
RATEDanswers
A+ with solution
RADIOLOGY FINAL
FINAL EXAM
EXAM REVIEW
REVIEW FOR
FOR CH
CH 4-6
4-6 (LATEST
(LATEST 2025-2026
2025-2026 UPDATE)
UPDATE) QUESTIONS
QUESTIONS WITH
WITH CORRECT
CORRECT
/2026
ANSWERS
ANSWERS
- accurate RATED
RATED
answersA+accurate
A+.pdf
with solution
answers w
RADIOLOGY FINAL EXAM REVIEW FOR CH 4-6 (LATEST
2025/2026 UPDATE) QUESTIONS WITH CORRECT
ANSWERS RATED A+
Short term effects of radiation
Associated with large doses of radiation in a short amount of time
Acute radiation syndrome (ARS)
Includes nausea, vomiting, diarrhea, hair loss, hemorrhage
Short-term effects are not applicable to dentistry.
Following the latent period, effects that are seen within minutes, days, or weeks are
termed
Short term effects of radiation
Note: Short-term effects are not applicable to dentistry.
Long term effects of radiation
-Small doses absorbed repeatedly over a long period of time
-Effects seen after years, decades, or generations
-Repeated low levels of radiation exposure are linked to the induction of cancer, birth
abnormalities, and genetic defects.
All the cells in the body can be classified as either ______________ or
______________
Somatic or Genetic
Somatic effects of radiation
Changes to the exposed individual that are not passed on to offspring
Genetic Effects of Radiation
changes that are passed on to the next generation due to radiation in gonads
26 UPDATE)
RADIOLOGY
QUESTIONS
FINAL
WITH
EXAM
CORRECT
REVIEWANSWERS
FOR CH 4-6
RATED
(LATEST
A+.pdf/
2025-2026
2026- real
Page
UPDATE)
exam-style
1 of 16
QUESTIONS
questions,WITH
detailed
CORRECT
explanations,
ANSWERS
and accurate
RATEDanswers
A+ with solution
, 2026//RADIOLOGY
RADIOLOGY FINAL
FINAL EXAM
EXAM REVIEW
REVIEW FOR
FOR CH
CH 4-6
4-6 (LATEST
(LATEST 2025-2026
2025-2026 UPDATE)
UPDATE) QUESTIONS
QUESTIONS WITH
WITH CORRECT
CORRECT
/2026
ANSWERS
ANSWERS
- accurate RATED
RATED
answersA+accurate
A+.pdf
with solution
answers w
A cell that is sensitive to radiation is termed _____________; one that is resistant is
termed ______________.
radiosensitive, radioresistant
Cells that divide frequently or undergo many divisions over time are more sensitive to
radiation.
mitotic activity
Cells that are immature or are not highly specialized are more sensitive to radiation.
cell differentiation
Cells that have a higher metabolism are more sensitive to radiation.
cell metabolism
Cells that are radiosensitive include blood cells, immature reproductive cells, and young
______ cells
Bone
The cell that is most sensitive to radiation is the small ________________________
Lymphocyte
Radioresistant cells include cells of _________, __________, __________
Bone, Muscle & nerve cells
In dentistry, some tissues and organs are designated as "___________" because they
are exposed to more radiation than are others during imaging procedures.
Critical
A Critical organ is
is an organ that, if damaged, diminishes the quality of a person's life.
Critical organs exposed during dental imaging procedures in the head and neck region
include the following:
* Thyroid gland
• Bone marrow
• Skin
• Lens of the eye
The term exposure refers to
refers to the measurement of ionization in air produced by x-rays.
The traditional unit of exposure for x-rays is
Roentgen (R)
The roentgen is a way of measuring radiation exposure by determining the amount of
ionization that occurs in air
radiation exposure on cells, tissues, and organs and identify the relative sensitivity of a
given tissue to x-radiation.
26 UPDATE)
RADIOLOGY
QUESTIONS
FINAL
WITH
EXAM
CORRECT
REVIEWANSWERS
FOR CH 4-6
RATED
(LATEST
A+.pdf/
2025-2026
2026- real
Page
UPDATE)
exam-style
2 of 16
QUESTIONS
questions,WITH
detailed
CORRECT
explanations,
ANSWERS
and accurate
RATEDanswers
A+ with solution
, 2026//RADIOLOGY
RADIOLOGY FINAL
FINAL EXAM
EXAM REVIEW
REVIEW FOR
FOR CH
CH 4-6
4-6 (LATEST
(LATEST 2025-2026
2025-2026 UPDATE)
UPDATE) QUESTIONS
QUESTIONS WITH
WITH CORRECT
CORRECT
/2026
ANSWERS
ANSWERS
- accurate RATED
RATED
answersA+accurate
A+.pdf
with solution
answers w
units of measurement used in radiation exposure.
total dose
Quantity of radiation received, or the total amount of radiation energy absorbed. More
damage occurs when tissues absorb large quantities of radiation.
An example of total-body irradiation is the exposure of a person to a nuclear energy
disaster. Extensive radiation injury occurs when large areas of the body are exposed
because of the damage to the _____________-________________ tissues.
Blood-forming
The radiation absorbed dose, or _______, is the traditional unit of dose.
RAD
---A special unit of absorbed dose that is equal to the deposition of 100 ergs of energy
per gram of tissue (100 erg/g)
RAD (Radiation absorbed dose)
Cell sensitivity
More damage occurs in cells that are most sensitive to radiation, such as rapidly
dividing cells and young cells
Cell sensitivity
More damage occurs in cells that are most sensitive to radiation, such as rapidly
dividing cells and young cells
Different types of radiation have different effects on tissues. The __________
_____________________ measurement is used to compare the biologic effects of
different types of radiation.
Dose Equivalent
Dose Rate
Rate at which exposure to radiation occurs and absorption takes place (dose rate =
dose/time). More radiation damage takes place with high dose rates because a rapid
delivery of radiation does not allow time for the cellular damage to be repaired.
26 UPDATE)
RADIOLOGY
QUESTIONS
FINAL
WITH
EXAM
CORRECT
REVIEWANSWERS
FOR CH 4-6
RATED
(LATEST
A+.pdf/
2025-2026
2026- real
Page
UPDATE)
exam-style
3 of 16
QUESTIONS
questions,WITH
detailed
CORRECT
explanations,
ANSWERS
and accurate
RATEDanswers
A+ with solution
