MEDICAL HEALTH PHYSICS EXAM
1 REVIEW 2025 QUESTIONS AND
ANSWERS
List the Eras in order - ....ANSWER ...-Pioneer Era, Dormant Era, Era of
Progress
Pioneer Era (years) - ....ANSWER ...-1895-1905
Dormant Era (years) - ....ANSWER ...-1905-1925
Era of Progress (years) - ....ANSWER ...-1925-1945
What happened during the Pioneer Era? - ....ANSWER ...-Recognition of
somatic effects only
What happened during the Dormant Era? - ....ANSWER ...-Little progress
in radiation protection
What happened during the Era of Progress? - ....ANSWER ...-Recognition
of genetic effects
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
, Law of Bernie & Tribundeau - ....ANSWER ...-Cells are more sensitive if
they are: undifferentiated, have long dividing futures, and are rapidly dividing
Late effects are much more sensitive to what? - ....ANSWER ...-Changes in
fractionation
Early effects happen from what? - ....ANSWER ...-Large number of rapidly
dividing cells dying
Late effects can take how long to appear - ....ANSWER ...-months to years
Late effects occur predominantly in what kind of tissues? - ....ANSWER ...-
Slowly proliferating
Examples of what structures have late effects - ....ANSWER ...-lung, kidney,
heart, liver, and central nervous system
Acute damage repairs.... - ....ANSWER ...-rapidly - rapid proliferation of
stem cells
Late damage may..... - ....ANSWER ...-improve - may never be completely
repaired
Who do somatic effects effect? - ....ANSWER ...-The person exposed
Deterministic Effect - ....ANSWER ...-Consequence of cell killing
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
1 REVIEW 2025 QUESTIONS AND
ANSWERS
List the Eras in order - ....ANSWER ...-Pioneer Era, Dormant Era, Era of
Progress
Pioneer Era (years) - ....ANSWER ...-1895-1905
Dormant Era (years) - ....ANSWER ...-1905-1925
Era of Progress (years) - ....ANSWER ...-1925-1945
What happened during the Pioneer Era? - ....ANSWER ...-Recognition of
somatic effects only
What happened during the Dormant Era? - ....ANSWER ...-Little progress
in radiation protection
What happened during the Era of Progress? - ....ANSWER ...-Recognition
of genetic effects
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
, Law of Bernie & Tribundeau - ....ANSWER ...-Cells are more sensitive if
they are: undifferentiated, have long dividing futures, and are rapidly dividing
Late effects are much more sensitive to what? - ....ANSWER ...-Changes in
fractionation
Early effects happen from what? - ....ANSWER ...-Large number of rapidly
dividing cells dying
Late effects can take how long to appear - ....ANSWER ...-months to years
Late effects occur predominantly in what kind of tissues? - ....ANSWER ...-
Slowly proliferating
Examples of what structures have late effects - ....ANSWER ...-lung, kidney,
heart, liver, and central nervous system
Acute damage repairs.... - ....ANSWER ...-rapidly - rapid proliferation of
stem cells
Late damage may..... - ....ANSWER ...-improve - may never be completely
repaired
Who do somatic effects effect? - ....ANSWER ...-The person exposed
Deterministic Effect - ....ANSWER ...-Consequence of cell killing
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
