Module 3 Quiz

Question 1

Damage to the body as a response to ionizing radiation is called:

a.) deterministic effects
b.) somatic effects
c.) random effects
d.) stochastic effects

Answer 1

b.) somatic effects

Question 2

The term LD 50/30 signifies the whole body dose of radiation that can be lethal to:

a.) 30% of the exposed population in 30 days
b.) 50% of the exposed population in 30 days
c.) 30% of the exposed population in 50 days
d.) 50% of the exposed population in 30 days

Answer 2

d.) 50% of the exposed population in 30 days

Question 3

Atrophy refers to:

a.) shrinkage of organs and tissues after a high radiation dose is recieved
b.) necrosis of the hypodermis from radiation exposure
c.) aging of the skin from radiation exposure
d.) wrinkling of the skin from radiation exposure

Answer 3

a.) shrinkage of organs and tissues after a high radiation dose is recieved

Question 4

___________ systems can withstand as much as 50 Gy before effects appear.

a.) GI
b.) hemapoietic
c.) cerebrovascular
d.) skeletal

Answer 4

c.) cerebrovascular

Question 5

If a person recieves radiation exposure sufficient to cause the gastrointestinal syndrome, fatality occurs primarily because of:

a.) inability to produce a bowel movement
b.) catastrophic damage to the epithelial cells that line the gastrointestinal track
c.) no peristalsis
d.) a blocked intestine

Answer 5

b.) catastrophic damage to the epithelial cells that line the gastrointestinal track

Question 6

Which of the following is not a form of acute radiation syndrome?

a.) carcinogenic syndrome
b.) hematopoietic syndrome
c.) gastrointestinal syndrome
d.) cerebrovascular syndrome

Answer 6

a.) carcinogenic syndrome

Question 7

Stochastic effects are random occuring biologic effects such as cancer.

a.) true
b.) false

Answer 7

a.) true

Question 8

Some local tissues suffer immediate consequences from high radiation doses. Examples of such tissues include:
1.) bone marrow
2.) male and female reproductive systems
3.) skin

a.) 1 and 3 only
b.) 2 and 3 only
c.) 1 and 2 only
d.) 1, 2 and 3

Answer 8

d.) 1, 2 and 3

Question 9

moist and dry desquamation can be caused by:

a.) high doses
b.) low doses
c.) radiation doses received during routine diagnostic imaging procedures
d.) radiation doses received during routine mammography

Answer 9

a.) high doses

Question 10

Organ and tissue response to radiation exposure depends on factors such as:
1.) radiosensitivity
2.) reproductive characteristics
3.) growth rate

a.) 2 and 3 only
b.) 1, 2 and 3
c.) 1 and 3 only
d.) 1 and 2 only

Answer 10

b.) 1, 2 and 3

Question 11

Early deterministic effects can occur ___________ after exposure.
1.) weeks
2.) hours
3.) days
4.) 6 months

a.) 4 only
b.) 1 and 2 only
c.) 1, 2 and 3
d.) 2 and 3 only

Answer 11

c.) 1, 2 and 3

Question 12

Which of the following are early deterministic somatic effects of ionizing radiation?
1.) cataract formation
2.) fatigue
3.) hair loss
4.) genetic mutations

a.) 1 and 4
b.) 1, 2, 3
c.) 2 and 3
d.) 4 only

Answer 12

c.) 2 and 3

Question 13

Radiation with a high LET transfers a small amount of energy into a large area.

a.) true
b.) false

Answer 13

b.) false

Question 14

The prodromal stage of acute radiation syndrome is actually the:

a.) manifest illness period
b.) initial stage
c.) recovery period
d.) latent period

Answer 14

b.) initial stage

Question 15

For persons with hemapoietic syndrome, survival time shortens as the radiation dose:

a.) stays the same
b.) decreases
c.) increases

Answer 15

c.) increases

Question 16

The second major response stage of acute radiation syndrome is:

a.) prodromal period
b.) latent period
c.) manifest
d.) recovery or death

Answer 16

b.) latent period

Question 17

Radiation damage can begin to effect the hempoietic system with as little as ________ Gy.

a.) 6 Gy
b.) 1 Gy
c.) .25 Gy
d.) 2 Gy

Answer 17

c.) .25 Gy

Question 18

The hemapoietic form of acute radiation syndrome is also called the:

a.) bone marrow syndrome
b.) cytogenetic syndrome
c.) auger syndrome
d.) cerebrovascular syndrome

Answer 18

a.) bone marrow syndrome

Question 19

Early tissue reactions are:

a.) common in diagnostic imaging
b.) no common in diagnostic imaging
c.) a result of grenz rays in diagnostic xray beam
d.) a result of irradiation of acellular tissue

Answer 19

b.) not common in diagnostic imaging

Question 20

Permanent sterility can occur in both men and women following a dose of __________ Gy.

a.) 10
b.) 0.1
c.) 3
d.) 5

Answer 20

d.) 5

Question 21

A dose of 0.5 Gy is given to a patient in five doses. This is called a ________ dose.

a.) protracted
b.) sublethal
c.) fatal
d.) fractionated

Answer 21

d.) fractionated

Question 22

During the latent period, the radiation victim experiences:

a.) nausea and vomiting
b.) well being
c.) death of recovery
d.) hair loss

Answer 22

b.) well being

Question 23

A protracted dose of radiation is given:

a.) over a long period of time
b.) in two large doses
c.) in a series of seperate doses
d.) all in one short exposure

Answer 23

a.) over a long period of time

Question 24

Alpha particles travel short distances, but can cause more damage than x rays.

a.) true
b.) false

Answer 24

a.) true

Question 25

During the major response stages of acute radiation syndrome after the initial stage, the period when symptoms that effect the hemapoietic, gastrointestinal, and cerebrovascular systems become visible, is called:

a.) the latent period
b.) manifest illness
c.) the prodromal syndrome
d.) recovery

Answer 25

b.) manifest illness

Question 26

A single absorbed dose of 2 Gyt can cause a radiation induced skin erythema within:

a.) 1 hour after irradiation
b.) 24 to 48 hours after irradiation
c.) 12 hours after irradiation
d.) 6 hours after irradiation

Answer 26

b.) 24 to 48 hours after irradiation