ARRT Radiography Exam Review (1-200) Question with complete 2023
verified
What is the annual effective dose limit for occupational exposure? - correct
answer 50 msv
What is the annual equivalent dose limit for occupational exposure to the
lens of the eye? - correct answer 150 msv
What is the annual equivalent dose limit for occupational exposure to the
localized areas of the skin, hands and feet? - correct answer 500 msv
This is calculated by multiplying the radiographer's age in years times 10
msv. - correct answer Cumulative effective dose limit.
The annual effective dose limit for students over the age of 18 is ________.
- correct answer 50 msv
The annual effective dose limit for the general public, assuming frequent
exposure is ________. - correct answer 1 msv
The annual effective dose limit for the general public, assuming infrequent
exposure is ________. - correct answer 5 msv
The total equivalent dose to the embryo/fetus for the entire gestational
period is ________. - correct answer 5 msv
The equivalent dose limit to the embryo/fetus per month is ________. -
correct answer 0.5 msv
,Effects that occur by chance and which may occur without a threshold level
of dose, whose probability is proportional to the dose and whose severity is
independent of the dose: - correct answer Stochastic Effects
Effects that have a threshold below which the effect does not occur. The
threshold may be very low and may vary from person to person. However,
once the threshold has been exceeded, the severity of an effect increases
with dose: - correct answer Deterministic Effects
________ is somatic cell division that comprises of four phases. When
division is complete, each new cell contains 46 chromosomes. - correct
answer Mitosis
What are the four phases of mitosis? - correct answer 1) Prophase
2) Metaphase
3) Anaphase
4) Telophase
________ is germ (sperm or ovum) cell division that halves the number of
chromosomes in each cell so that the union of two germ cells produces a
new cell with 46 chromosomes. - correct answer Meiosis
This occurs when radiation transfers its energy directly to the DNA or RNA.
- correct answer Direct Effect
Because a cell contains mostly water, the probability that it will be struck by
radiation is greater. This interaction is known as the ________ effect. -
correct answer Indirect
, ________ of water occurs as radiation energy is deposited into the water of
a cell. - correct answer Radiolysis
Cells are most sensitive to radiation when they are immature,
undifferentiated, and rapidly dividing. This describes: - correct answer
The law of Bergonie and Tribondeau.
If cells are more oxygenated, they are more susceptible to radiation
damage. This describes: - correct answer Oxygen Enhancement Ratio
(OER)
A whole-body dose of ________ will depress the blood count. - correct
answer 0.25 Gy
Somatic effects are evident in the ________ being exposed. - correct
answer Organism
Doses causing somatic effects are much ________ than those received in
general diagnostic radiography. - correct answer Higher
What are some examples of early somatic effects (acute radiation
syndrome)? - correct answer 1) Hematopoietic Syndrome
2) GI Syndrome
3) Central Nervous System Syndrome
What is hematopoietic syndrome? - correct answer It decreases the total
number of all blood cells, and can lead to death.
verified
What is the annual effective dose limit for occupational exposure? - correct
answer 50 msv
What is the annual equivalent dose limit for occupational exposure to the
lens of the eye? - correct answer 150 msv
What is the annual equivalent dose limit for occupational exposure to the
localized areas of the skin, hands and feet? - correct answer 500 msv
This is calculated by multiplying the radiographer's age in years times 10
msv. - correct answer Cumulative effective dose limit.
The annual effective dose limit for students over the age of 18 is ________.
- correct answer 50 msv
The annual effective dose limit for the general public, assuming frequent
exposure is ________. - correct answer 1 msv
The annual effective dose limit for the general public, assuming infrequent
exposure is ________. - correct answer 5 msv
The total equivalent dose to the embryo/fetus for the entire gestational
period is ________. - correct answer 5 msv
The equivalent dose limit to the embryo/fetus per month is ________. -
correct answer 0.5 msv
,Effects that occur by chance and which may occur without a threshold level
of dose, whose probability is proportional to the dose and whose severity is
independent of the dose: - correct answer Stochastic Effects
Effects that have a threshold below which the effect does not occur. The
threshold may be very low and may vary from person to person. However,
once the threshold has been exceeded, the severity of an effect increases
with dose: - correct answer Deterministic Effects
________ is somatic cell division that comprises of four phases. When
division is complete, each new cell contains 46 chromosomes. - correct
answer Mitosis
What are the four phases of mitosis? - correct answer 1) Prophase
2) Metaphase
3) Anaphase
4) Telophase
________ is germ (sperm or ovum) cell division that halves the number of
chromosomes in each cell so that the union of two germ cells produces a
new cell with 46 chromosomes. - correct answer Meiosis
This occurs when radiation transfers its energy directly to the DNA or RNA.
- correct answer Direct Effect
Because a cell contains mostly water, the probability that it will be struck by
radiation is greater. This interaction is known as the ________ effect. -
correct answer Indirect
, ________ of water occurs as radiation energy is deposited into the water of
a cell. - correct answer Radiolysis
Cells are most sensitive to radiation when they are immature,
undifferentiated, and rapidly dividing. This describes: - correct answer
The law of Bergonie and Tribondeau.
If cells are more oxygenated, they are more susceptible to radiation
damage. This describes: - correct answer Oxygen Enhancement Ratio
(OER)
A whole-body dose of ________ will depress the blood count. - correct
answer 0.25 Gy
Somatic effects are evident in the ________ being exposed. - correct
answer Organism
Doses causing somatic effects are much ________ than those received in
general diagnostic radiography. - correct answer Higher
What are some examples of early somatic effects (acute radiation
syndrome)? - correct answer 1) Hematopoietic Syndrome
2) GI Syndrome
3) Central Nervous System Syndrome
What is hematopoietic syndrome? - correct answer It decreases the total
number of all blood cells, and can lead to death.
