Question 1

At the conclusion of a brachytherapy or diagnostic radionuclide procedure,any residual isotope

Accepted Answer

A) is to be returned to its shielded container. 
B) is to be returned to its unshielded container. 
C) thrown directly into a regular trash can for disposal. 
D) dumped into any regular sink and washed down the drain. 
A) is to be returned to its shielded container. 
B) is to be returned to its unshielded container. 
C) thrown directly into a regular trash can for disposal. 
D) dumped into any regular sink and washed down the drain. A

Question 2

While a patient receiving Iodine-131 (¹³¹I)therapy is hospitalized,a large,_________,rolling lead shield can be positioned between the patient and any attending personnel for protection.

Accepted Answer

A) up to 25-mm or 1-inch-thick 
B) up to 50-mm or 2-inch-thick 
C) up to 75-mm or 3-inch-thick 
D) up to 150-mm or 6-inch-thick 
A) up to 25-mm or 1-inch-thick 
B) up to 50-mm or 2-inch-thick 
C) up to 75-mm or 3-inch-thick 
D) up to 150-mm or 6-inch-thick A

Question 3

Each Fluorine-18 (¹⁸F)nuclear transformation by positron decay yields two highly penetrating _________ photons.

Accepted Answer

A) 250-keV 
B) 472-keV 
C) 511-kev 
D) 777-keV 
A) 250-keV 
B) 472-keV 
C) 511-kev 
D) 777-keV C

Question 4

A solid encapsulated radioactive source

Accepted Answer

A) can be handled with the hands without any protective covering of the hands. 
B) can be handled with the hands at any time as long as vinyl gloves are worn. 
C) can only occasionally be handled with the hands as long as vinyl gloves are worn. 
D) is never to be touched directly with the hands;instead long tongs which add distance should be used. 
A) can be handled with the hands without any protective covering of the hands. 
B) can be handled with the hands at any time as long as vinyl gloves are worn. 
C) can only occasionally be handled with the hands as long as vinyl gloves are worn. 
D) is never to be touched directly with the hands;instead long tongs which add distance should be used.

Question 5

The National Library of Medicine and the National Institute of Health maintain a website that contains a wealth of information on dealing with radiation emergencies.It contains which of the following?
1)Both basic and advanced methods for decontamination
2)Methods to reduce exposure
3)Specific medical emergency procedures for various situations

Accepted Answer

A) 1 and 2 only 
B) 1 and 3 only 
C) 2 and 3 only 
D) 1,2,and 3 
A) 1 and 2 only 
B) 1 and 3 only 
C) 2 and 3 only 
D) 1,2,and 3

Question 6

During a radiation emergency,the dose limit for individuals engaging in lifesaving activities is

Accepted Answer

A) 50 mSv per event. 
B) 100 mSv per event. 
C) 250 mSv per event. 
D) 500 mSv per event. 
A) 50 mSv per event. 
B) 100 mSv per event. 
C) 250 mSv per event. 
D) 500 mSv per event.

Question 7

Therapeutic radioisotopes are characterized by

Accepted Answer

A) very short half-lives. 
B) half-lives that are exactly the same. 
C) relatively long half-lives. 
D) half-lives that remain constant for all eternity. 
A) very short half-lives. 
B) half-lives that are exactly the same. 
C) relatively long half-lives. 
D) half-lives that remain constant for all eternity.

Question 8

What is the half-life of Technetium-99m?

Accepted Answer

A) 6 hours 
B) 3 hours 
C) 6 minutes 
D) 3 minutes 
A) 6 hours 
B) 3 hours 
C) 6 minutes 
D) 3 minutes

Question 9

Radioiodide tablets that dissolve in the bloodstream permit an escape of some radioactivity through
1)the pores of the skin.
2)urination.
3)vomiting in some special cases.

Accepted Answer

A) 1 and 2 only 
B) 1 and 3 only 
C) 2 and 3 only 
D) 1,2,and 3 
A) 1 and 2 only 
B) 1 and 3 only 
C) 2 and 3 only 
D) 1,2,and 3

Question 10

Tellurium-125 (¹²⁵Te)has

Accepted Answer

A) 125 protons and 125 neutrons. 
B) 75 protons and 63 neutrons. 
C) 52 protons and 73 neutrons. 
D) 45 protons and 58 neutrons. 
A) 125 protons and 125 neutrons. 
B) 75 protons and 63 neutrons. 
C) 52 protons and 73 neutrons. 
D) 45 protons and 58 neutrons.

Question 11

Iodine-125 (¹²⁵I)in the form of titanium-encapsulated cylindrical seeds has been used quite extensively since 2000 to give a tumoricidal radiation equivalent dose for

Accepted Answer

A) malignant brain tumors. 
B) malignant breast tumors. 
C) malignant lung tumors. 
D) prostate cancers that are confined within the prostate gland. 
A) malignant brain tumors. 
B) malignant breast tumors. 
C) malignant lung tumors. 
D) prostate cancers that are confined within the prostate gland.

Question 12

Gamma rays differ from x-rays

Accepted Answer

A) because they are a form of electromagnetic radiation and x-rays are not. 
B) because x-rays are a form of electromagnetic radiation and gamma rays are not. 
C) only in the method of how they are produced. 
D) only because they are of much lower energy. 
A) because they are a form of electromagnetic radiation and x-rays are not. 
B) because x-rays are a form of electromagnetic radiation and gamma rays are not. 
C) only in the method of how they are produced. 
D) only because they are of much lower energy.

Question 13

Diagnostic techniques in nuclear medicine typically make use of ___________ radioisotopes as radioactive tracers.

Accepted Answer

A) long-lived 
B) short-lived 
C) very weak 
D) potentially lethal 
A) long-lived 
B) short-lived 
C) very weak 
D) potentially lethal

Question 14

Considering the design of the medical imaging suites listed below,which suite requires shielding for the highest energy photons?

Accepted Answer

A) CT suite 
B) PET imaging suite 
C) Digital mammography suite 
D) Digital fluoroscopy suite 
A) CT suite 
B) PET imaging suite 
C) Digital mammography suite 
D) Digital fluoroscopy suite

Question 15

The design of a _______________ imaging suite involves significant radiation safety concerns.

Accepted Answer

A) diagnostic x-ray 
B) computed radiography 
C) computed tomography 
D) PET and CT 
A) diagnostic x-ray 
B) computed radiography 
C) computed tomography 
D) PET and CT

Question 16

The actual long-term health effects of a "dirty bomb" are likely to be

Accepted Answer

A) catastrophic. 
B) maximal. 
C) minimal. 
D) nonexistent. 
A) catastrophic. 
B) maximal. 
C) minimal. 
D) nonexistent.

Question 17

Radioactive material that is attached to or associated with dust particles or in liquid form on various surfaces defines the term

Accepted Answer

A) radioactive contamination. 
B) radioactive dispersal device. 
C) radioactive fallout. 
D) radioactive syndrome. 
A) radioactive contamination. 
B) radioactive dispersal device. 
C) radioactive fallout. 
D) radioactive syndrome.

Question 18

During a radiation emergency,if the dose rate exceeds ____________,emergency personnel should await specific instructions from radiation experts on how to proceed.

Accepted Answer

A) 0.1 Sv/hr 
B) 0.5 Sv/hr 
C) 1.0 Sv/hr 
D) 5.0 Sv/hr 
A) 0.1 Sv/hr 
B) 0.5 Sv/hr 
C) 1.0 Sv/hr 
D) 5.0 Sv/hr

Question 19

If enough explosives are used to spread radioactive material over a broad area,then radioactivity is

Accepted Answer

A) extremely hazardous and may be much higher than background levels. 
B) moderately hazardous and may be higher than background levels. 
C) slightly hazardous and may be only slightly higher than background levels. 
D) diluted and may not be much higher than background levels. 
A) extremely hazardous and may be much higher than background levels. 
B) moderately hazardous and may be higher than background levels. 
C) slightly hazardous and may be only slightly higher than background levels. 
D) diluted and may not be much higher than background levels.

Question 20

In __________,a neutron transforms itself into a combination of a proton and an energetic electron.

Accepted Answer

A) alpha decay 
B) beta decay 
C) gamma decay 
D) x-ray absorption 
A) alpha decay 
B) beta decay 
C) gamma decay 
D) x-ray absorption

At the conclusion of a brachytherapy or diagnostic radionuclide procedure,any residual isotope

While a patient receiving Iodine-131 (¹³¹I)therapy is hospitalized,a large,_________,rolling lead shield can be positioned between the patient and any attending personnel for protection.

Each Fluorine-18 (¹⁸F)nuclear transformation by positron decay yields two highly penetrating _________ photons.

A solid encapsulated radioactive source

During a radiation emergency,the dose limit for individuals engaging in lifesaving activities is

Therapeutic radioisotopes are characterized by

What is the half-life of Technetium-99m?

Radioiodide tablets that dissolve in the bloodstream permit an escape of some radioactivity through 1)the pores of the skin. 2)urination. 3)vomiting in some special cases.

Tellurium-125 (¹²⁵Te)has

Iodine-125 (¹²⁵I)in the form of titanium-encapsulated cylindrical seeds has been used quite extensively since 2000 to give a tumoricidal radiation equivalent dose for

Gamma rays differ from x-rays

Diagnostic techniques in nuclear medicine typically make use of ___________ radioisotopes as radioactive tracers.

Considering the design of the medical imaging suites listed below,which suite requires shielding for the highest energy photons?

The design of a _______________ imaging suite involves significant radiation safety concerns.

The actual long-term health effects of a "dirty bomb" are likely to be

Radioactive material that is attached to or associated with dust particles or in liquid form on various surfaces defines the term

During a radiation emergency,if the dose rate exceeds ____________,emergency personnel should await specific instructions from radiation experts on how to proceed.

If enough explosives are used to spread radioactive material over a broad area,then radioactivity is

In __________,a neutron transforms itself into a combination of a proton and an energetic electron.

Introduction to Radiation Protection

Radiation: Types, sources, and Doses Received

Interaction of X-Radiation With Matter

Radiation Quantities and Units

Radiation Monitoring

Overview of Cell Biology

Molecular and Cellular Radiation Biology

Early Tissue Reactions and Their Effects on Organ Systems

Stochastic Effects and Late Tissue Reactions of Radiation in Organ Systems

Dose Limits for Exposure to Ionizing Radiation

Equipment Design for Radiation Protection

Management of Patient Radiation Dose During Diagnostic X-Ray Procedures

Special Considerations on Safety in Computed Tomography and Mammography

Management of Imaging Personnel Radiation Dose During X-Ray Procedures

Filters

Exam 15: Radioisotopes and Radiation Protection

At the conclusion of a brachytherapy or diagnostic radionuclide procedure,any residual isotope

While a patient receiving Iodine-131 (¹³¹I)therapy is hospitalized,a large,_________,rolling lead shield can be positioned between the patient and any attending personnel for protection.

Each Fluorine-18 (¹⁸F)nuclear transformation by positron decay yields two highly penetrating _________ photons.

A solid encapsulated radioactive source

During a radiation emergency,the dose limit for individuals engaging in lifesaving activities is

Therapeutic radioisotopes are characterized by

What is the half-life of Technetium-99m?

Radioiodide tablets that dissolve in the bloodstream permit an escape of some radioactivity through 1)the pores of the skin. 2)urination. 3)vomiting in some special cases.

Tellurium-125 (¹²⁵Te)has

Iodine-125 (¹²⁵I)in the form of titanium-encapsulated cylindrical seeds has been used quite extensively since 2000 to give a tumoricidal radiation equivalent dose for

Gamma rays differ from x-rays

Diagnostic techniques in nuclear medicine typically make use of ___________ radioisotopes as radioactive tracers.

Considering the design of the medical imaging suites listed below,which suite requires shielding for the highest energy photons?

The design of a _______________ imaging suite involves significant radiation safety concerns.

The actual long-term health effects of a "dirty bomb" are likely to be

Radioactive material that is attached to or associated with dust particles or in liquid form on various surfaces defines the term

During a radiation emergency,if the dose rate exceeds ____________,emergency personnel should await specific instructions from radiation experts on how to proceed.

If enough explosives are used to spread radioactive material over a broad area,then radioactivity is

In __________,a neutron transforms itself into a combination of a proton and an energetic electron.

Introduction to Radiation Protection

Radiation: Types, sources, and Doses Received

Interaction of X-Radiation With Matter

Radiation Quantities and Units

Radiation Monitoring

Overview of Cell Biology

Molecular and Cellular Radiation Biology

Early Tissue Reactions and Their Effects on Organ Systems

Stochastic Effects and Late Tissue Reactions of Radiation in Organ Systems

Dose Limits for Exposure to Ionizing Radiation

Equipment Design for Radiation Protection

Management of Patient Radiation Dose During Diagnostic X-Ray Procedures

Special Considerations on Safety in Computed Tomography and Mammography

Management of Imaging Personnel Radiation Dose During X-Ray Procedures

Filters