Question 1

The stem cells of the ovaries multiply during _________________.

Accepted Answer

A)  fetal growth 
B)  early childhood 
C)  puberty 
D)  Both A and B 
A)  fetal growth 
B)  early childhood 
C)  puberty 
D)  Both A and B A

Question 2

_____________ are among the most radioresistive species.

Accepted Answer

A)  Birds 
B)  Dogs 
C)  Humans 
D)  Cockroaches 
A)  Birds 
B)  Dogs 
C)  Humans 
D)  Cockroaches D

Question 3

The minimum dose lethal to humans is _____ Gy to the whole body.

Accepted Answer

A)  0.5 
B)  1 
C)  2 
D)  4 
A)  0.5 
B)  1 
C)  2 
D)  4 C

Question 4

The most radiosensitive cells in the hematopoietic system of the human body are the _________________.

Accepted Answer

A)  granulocytes 
B)  erythrocytes 
C)  lymphocytes 
D)  platelets 
A)  granulocytes 
B)  erythrocytes 
C)  lymphocytes 
D)  platelets

Question 5

What would be the most likely immediate response to a whole body dose of 2 Gy?

Accepted Answer

A)  A sense of well-being. 
B)  Diarrhea, nausea, and vomiting. 
C)  Convulsive seizures and edema. 
D)  Increased strength. 
A)  A sense of well-being. 
B)  Diarrhea, nausea, and vomiting. 
C)  Convulsive seizures and edema. 
D)  Increased strength.

Question 6

A subject would not experience ________________ following a dose high enough to cause CNS syndrome.

Accepted Answer

A)  hematologic syndrome 
B)  gastrointestinal syndrome 
C)  prodromal syndrome 
D)  Both A and B 
A)  hematologic syndrome 
B)  gastrointestinal syndrome 
C)  prodromal syndrome 
D)  Both A and B

Question 7

A person subjected to 50 Gy to the whole body may survive for __________ before death occurs.

Accepted Answer

A)  3 hours 
B)  24 hours 
C)  3 days 
D)  2 weeks 
A)  3 hours 
B)  24 hours 
C)  3 days 
D)  2 weeks

Question 8

A single chromosome aberration represents ______________ to the DNA within the chromosome.

Accepted Answer

A)  a single hit 
B)  severe damage 
C)  little damage 
D)  no damage 
A)  a single hit 
B)  severe damage 
C)  little damage 
D)  no damage

Question 9

During the latent period, the radiation victim experiences _____________.

Accepted Answer

A)  hair loss 
B)  nausea and vomiting 
C)  skin erythema 
D)  well-being 
A)  hair loss 
B)  nausea and vomiting 
C)  skin erythema 
D)  well-being

Question 10

Skin effects from localized doses of radiation follow a _____________ dose-response relationship.

Accepted Answer

A)  linear, threshold 
B)  nonlinear, nonthreshold 
C)  nonlinear, threshold 
D)  linear, nonthreshold 
A)  linear, threshold 
B)  nonlinear, nonthreshold 
C)  nonlinear, threshold 
D)  linear, nonthreshold

Question 11

High doses of radiation to a localized area can lead to ____________ of tissues and organs in that area.

Accepted Answer

A)  reduction in size 
B)  shrinkage 
C)  total loss of function 
D)  All of the above 
A)  reduction in size 
B)  shrinkage 
C)  total loss of function 
D)  All of the above

Question 12

Ovaries are most radiosensitive during ____________________.

Accepted Answer

A)  fetal growth 
B)  early childhood 
C)  early adulthood 
D)  Both A and B 
A)  fetal growth 
B)  early childhood 
C)  early adulthood 
D)  Both A and B

Question 13

Immediately following a whole body dose of 10 Gy the victim would experience (a) ______________________.

Accepted Answer

A)  sudden death 
B)  latent period 
C)  prodromal symptoms 
D)  hair loss 
A)  sudden death 
B)  latent period 
C)  prodromal symptoms 
D)  hair loss

Question 14

The LD₅₀/₆₀ is the dose of radiation to the whole-body that will result in death within __________ to _____% of the irradiated population.

Accepted Answer

A)  50 days, 60 
B)  60 days, 50 
C)  60 minutes, 50 
D)  50 minutes, 60 
A)  50 days, 60 
B)  60 days, 50 
C)  60 minutes, 50 
D)  50 minutes, 60

Question 15

The central nervous system syndrome occurs following a whole body dose of _____ Gy or more.

Accepted Answer

A)  50 
B)  20 
C)  10 
D)  5 
A)  50 
B)  20 
C)  10 
D)  5

Question 16

A local dose of _____ rad(s) or more can cause gonadal dysfunction.

Accepted Answer

A)  1 
B)  5 
C)  10 
D)  100 
A)  1 
B)  5 
C)  10 
D)  100

Question 17

The LD₅₀/₆₀ for humans is approximately _____ Gy.

Accepted Answer

A)  1 
B)  2.5 
C)  3.5 
D)  10 
A)  1 
B)  2.5 
C)  3.5 
D)  10

Question 18

The destruction of ________ cells in the intestinal lining causes death from GI syndrome.

Accepted Answer

A)  muscle 
B)  stem 
C)  mature 
D)  blood 
A)  muscle 
B)  stem 
C)  mature 
D)  blood

Question 19

Localized doses of 7 Gy to the skin can cause _____________________.

Accepted Answer

A)  death 
B)  permanent hair loss 
C)  gastrointestinal syndrome 
D)  All of the above 
A)  death 
B)  permanent hair loss 
C)  gastrointestinal syndrome 
D)  All of the above

Question 20

Some radiation victims of _______________ syndrome(s) may recover completely.

Accepted Answer

A)  central nervous system 
B)  gastrointestinal 
C)  hematologic 
D)  All of the above 
A)  central nervous system 
B)  gastrointestinal 
C)  hematologic 
D)  All of the above

Exam 33: Deterministic Effects of Radiation

The stem cells of the ovaries multiply during _________________.

_____________ are among the most radioresistive species.

The minimum dose lethal to humans is _____ Gy to the whole body.

The most radiosensitive cells in the hematopoietic system of the human body are the _________________.

What would be the most likely immediate response to a whole body dose of 2 Gy?

A subject would not experience ________________ following a dose high enough to cause CNS syndrome.

A person subjected to 50 Gy to the whole body may survive for __________ before death occurs.

A single chromosome aberration represents ______________ to the DNA within the chromosome.

During the latent period, the radiation victim experiences _____________.

Skin effects from localized doses of radiation follow a _____________ dose-response relationship.

High doses of radiation to a localized area can lead to ____________ of tissues and organs in that area.

Ovaries are most radiosensitive during ____________________.

Immediately following a whole body dose of 10 Gy the victim would experience (a) ______________________.

The LD₅₀/₆₀ is the dose of radiation to the whole-body that will result in death within __________ to _____% of the irradiated population.

The central nervous system syndrome occurs following a whole body dose of _____ Gy or more.

A local dose of _____ rad(s) or more can cause gonadal dysfunction.

The LD₅₀/₆₀ for humans is approximately _____ Gy.

The destruction of ________ cells in the intestinal lining causes death from GI syndrome.

Localized doses of 7 Gy to the skin can cause _____________________.

Some radiation victims of _______________ syndrome(s) may recover completely.

Essential Concepts of Radiologic Science

The Structure of Matter

Electromagnetic Energy

Electricity, Magnetism, and Electromagnetism

The X-ray Imaging System

The X-ray Tube

X-ray Production

X-ray Emission

X-ray Interaction with Matter

Radiographic Image Quality

Control of Scatter Radiation

Screen-Film Radiography

Screen-Film Radiographic Technique

Medical Imaging Computer Science

Computed Radiography

Digital Radiography

Digital Radiographic Technique

Viewing the Digital Image

Screen-Film Radiographic Artifacts

Screen-Film Radiographic Quality Control

Digital Radiographic Artifacts

Digital Radiographic Quality Control

Mammography

Mammography Quality Control

Fluoroscopy

Digital Fluoroscopy

Interventional Radiology

Computed Tomography

Human Biology

Fundamental Principles of Radiobiology

Molecular Radiobiology

Cellular Radiobiology

Stochastic Effects of Radiation

Health Physics

Designing for Radiation Protection

Radiography/Fluoroscopy Patient Radiation Dose

Computed Tomography Patient Radiation Dose

Patient Radiation Dose Management

Occupational Radiation Dose Management

Filters

The LD₅₀/₆₀ is the dose of radiation to the whole-body that will result in death within ______ to _% of the irradiated population.