Question 1

There is usually a _____ before the symptoms of acute radiation syndromes appear.

Accepted Answer

A)   latent period
B)   recovery period
C)   prolonged illness
D)   loss of hairE) None of the above
F) A) and C)

Question 2

The LD50/60 for humans is approximately _____ Gy.

Accepted Answer

A)   1
B)   2.5
C)   3.5
D)   10E) A) and B)
F) None of the above

Question 3

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

Accepted Answer

A)   50
B)   20
C)   10
D)   5E) A) and D)
F) All of the above A

Question 4

Gonadal responses to radiation have been observed at doses as low as _____ Gy.

Accepted Answer

A)   1
B)   0.5
C)   0.2
D)   0.1E) A) and B)
F) A) and C)

Question 5

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 aboveE) A) and B)
F) A) and C)

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 BE) B) and C)
F) None of the above

Question 7

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 strengthE) B) and C)
F) A) and D)

Question 8

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, nonthresholdE) None of the above
F) A) and B)

Question 9

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 damageE) B) and D)
F) C) and D)

Question 10

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 weeksE) C) and D)
F) B) and D)

Question 11

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

Accepted Answer

A)   0.5
B)   1
C)   2
D)   4E) C) and D)
F) None of the above

Question 12

About half of the population will experience skin erythema following a localized dose of _____ Gy.

Accepted Answer

A)   5
B)   3.5
C)   1
D)   0.5E) B) and C)
F) A) and D) A

Question 13

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

Accepted Answer

A)   granulocytes
B)   erythrocytes
C)   lymphocytes
D)   plateletsE) A) and D)
F) None of the above

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, 60E) B) and D)
F) B) and C) B

Question 15

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

Accepted Answer

A)   1
B)   5
C)   10
D)   100E) A) and B)
F) A) and C)

Question 16

Death from acute radiation exposure follows a _____ dose-response relationship.

Accepted Answer

A)   nonlinear, threshold
B)   linear, threshold
C)   linear, nonthreshold
D)   nonlinear, nonthresholdE) A) and B)
F) All of the above

Question 17

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

Accepted Answer

A)   muscle
B)   stem
C)   mature
D)   bloodE) None of the above
F) C) and D)

Question 18

During the latent period,the radiation victim experiences _____.

Accepted Answer

A)   hair loss
B)   nausea and vomiting
C)   skin erythema
D)   well-beingE) All of the above
F) B) and C)

Question 19

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

Accepted Answer

A)   central nervous system
B)   gastrointestinal
C)   hematologic
D)   all of the aboveE) A) and B)
F) A) and C)

Question 20

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 lossE) C) and D)
F) B) and C)

Exam 33: Deterministic Effects of Radiation

There is usually a _____ before the symptoms of acute radiation syndromes appear.

Correct AnswerverifiedShow Answer

The LD50/60 for humans is approximately _____ Gy.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedA

Gonadal responses to radiation have been observed at doses as low as _____ Gy.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

About half of the population will experience skin erythema following a localized dose of _____ Gy.

Correct AnswerverifiedA

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedB

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

Correct AnswerverifiedShow Answer

Death from acute radiation exposure follows a _____ dose-response relationship.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

During the latent period,the radiation victim experiences _____.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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The LD_50/60 for humans is approximately _____ Gy.

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A

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A

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The LD_50/60 is the dose of radiation to the whole-body that will result in death within _ to _% of the irradiated population.

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B

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