Test Bank For Radiation Protection in
Medical Radiography | Questions and
Answers | Authentic Question Bank | A+
Standard
‣ Who discovered x-rays? -✓✓Wilhelm Conrad Roentgen
‣ What year were x-rays discovered? -✓✓1895
‣ How were x-rays discovered? -✓✓Roentgen was investigating the nature of cathode
rays and fluorescent materials. Passed electricity through a Crookes tube that was
covered with a shield of black cardboard. He observed light coming from the paper
coated with barium platinocyanide. Found out x-rays could expose photographic film.
‣ What was the first radiograph taken? -✓✓Roentgen's wife's hand
‣ What year were the first cases of radiation induced damages noted? -✓✓1896
‣ Year of first death related to radiation induced injuries? -✓✓1904
‣ Who was the first death related to radiation induced cancer?
What type of cancer killed him? (Somatic (body) damage) -✓✓Clarence Dailey
Leukemia
‣ Types of occupational Exposure -✓✓Radiodermatitis
Many turned cancerous
‣ Skin Radiodermatitis -✓✓First occupational notes - reddening of the skin
‣ Blood disorders -✓✓Aplastic Anemia
Leukemia
‣ Leukemia -✓✓Abnormal overproduction of white blood cells
‣ Aplastic Anemia -✓✓Results from bone marrow failure
‣ What made early radiography pioneers investigate radiation protection measures? -
✓✓Early radiation injuries such as radiodermatitis
‣ Early Deterministic Somatic Effects -✓✓-Nausea
-Fatigue
, -Diffuse redness of the skin
-Loss of hair
-Intestinal disorders
-Shedding outer layer of skin
‣ Late Deterministic Somatic Effects -✓✓-Cataract formation
-Fibrosis
-Organ atrophy
-Loss of parenchymal cells
-Reduced fertility
-Sterility
‣ Late Stochastic Effects -✓✓-Cancer
-Genetic (hereditary) effects
‣ Skin Erythema Dose -✓✓-1900-1930
-unit in use for measuring radiation exposure
-the received quantity of radiation that causes diffuse redness over an area of skin after
irradiation.
‣ Year roentgen was accepted unit of exposure without a great definition? -✓✓1928
‣ What were used to measure for radiation dose in the early years? -✓✓Short-term
effects (acute or early effects)
‣ Level of radiation accepted to be the level with which exposure did not cause apparent
harmful side effects? -✓✓Tolerance Level; NOW called threshold dose
‣ A radiation dose to which occupationally exposed persons could be continuously
subjected without any apparent harmful acute effects, such as erythema of the skin? -
✓✓Tolerance dose
‣ What year did the National Commission on Radiation Protection (NCRP) form? -
✓✓1946
‣ What year begins the Modern Era of Radiation Protection? -✓✓1950
‣ What were established with the beginning of the Modern Era of Radiation Protection?
-✓✓Maximum permissible doses/Units of measure
‣ Year SI units adopted? (Unified system of metric units worldwide) -✓✓1980
‣ Roentgen (R) -✓✓-Measurement of exposure to x-radiation and gamma radiation
Medical Radiography | Questions and
Answers | Authentic Question Bank | A+
Standard
‣ Who discovered x-rays? -✓✓Wilhelm Conrad Roentgen
‣ What year were x-rays discovered? -✓✓1895
‣ How were x-rays discovered? -✓✓Roentgen was investigating the nature of cathode
rays and fluorescent materials. Passed electricity through a Crookes tube that was
covered with a shield of black cardboard. He observed light coming from the paper
coated with barium platinocyanide. Found out x-rays could expose photographic film.
‣ What was the first radiograph taken? -✓✓Roentgen's wife's hand
‣ What year were the first cases of radiation induced damages noted? -✓✓1896
‣ Year of first death related to radiation induced injuries? -✓✓1904
‣ Who was the first death related to radiation induced cancer?
What type of cancer killed him? (Somatic (body) damage) -✓✓Clarence Dailey
Leukemia
‣ Types of occupational Exposure -✓✓Radiodermatitis
Many turned cancerous
‣ Skin Radiodermatitis -✓✓First occupational notes - reddening of the skin
‣ Blood disorders -✓✓Aplastic Anemia
Leukemia
‣ Leukemia -✓✓Abnormal overproduction of white blood cells
‣ Aplastic Anemia -✓✓Results from bone marrow failure
‣ What made early radiography pioneers investigate radiation protection measures? -
✓✓Early radiation injuries such as radiodermatitis
‣ Early Deterministic Somatic Effects -✓✓-Nausea
-Fatigue
, -Diffuse redness of the skin
-Loss of hair
-Intestinal disorders
-Shedding outer layer of skin
‣ Late Deterministic Somatic Effects -✓✓-Cataract formation
-Fibrosis
-Organ atrophy
-Loss of parenchymal cells
-Reduced fertility
-Sterility
‣ Late Stochastic Effects -✓✓-Cancer
-Genetic (hereditary) effects
‣ Skin Erythema Dose -✓✓-1900-1930
-unit in use for measuring radiation exposure
-the received quantity of radiation that causes diffuse redness over an area of skin after
irradiation.
‣ Year roentgen was accepted unit of exposure without a great definition? -✓✓1928
‣ What were used to measure for radiation dose in the early years? -✓✓Short-term
effects (acute or early effects)
‣ Level of radiation accepted to be the level with which exposure did not cause apparent
harmful side effects? -✓✓Tolerance Level; NOW called threshold dose
‣ A radiation dose to which occupationally exposed persons could be continuously
subjected without any apparent harmful acute effects, such as erythema of the skin? -
✓✓Tolerance dose
‣ What year did the National Commission on Radiation Protection (NCRP) form? -
✓✓1946
‣ What year begins the Modern Era of Radiation Protection? -✓✓1950
‣ What were established with the beginning of the Modern Era of Radiation Protection?
-✓✓Maximum permissible doses/Units of measure
‣ Year SI units adopted? (Unified system of metric units worldwide) -✓✓1980
‣ Roentgen (R) -✓✓-Measurement of exposure to x-radiation and gamma radiation
