Deck 33: Deterministic Effects of Radiation

Question 1

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

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

Answer 1

prodromal symptoms

Question 2

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

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

Answer 2

stem

Question 3

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

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

Answer 3

10

Question 4

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

A) 5
B) 3.5
C) 1
D) 0.5

Question 5

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

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

Question 6

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

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

Question 7

A dose of _____ Gy or more to a small area of the body can cause skin erythema.

A) 0.25
B) 0.5
C) 1
D) 2

Question 8

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

A) latent period
B) recovery period
C) prolonged illness
D) loss of hair

Question 9

The LD₅₀/₆₀ for humans is approximately _____ Gy.

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

Question 10

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

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

Question 11

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

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

Question 12

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

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

Question 13

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

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

Question 14

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

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

Question 15

During the latent period, the radiation victim experiences _____________.

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

Question 16

_____________ are among the most radioresistive species.

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

Question 17

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

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

Question 18

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

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

Question 19

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

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

Question 20

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

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

Question 21

The stem cells of the ovaries multiply during _________________.

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

Question 22

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

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

Question 23

Ovaries are most radiosensitive during ____________________.

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

Question 24

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

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

Question 25

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

A) 1
B) 0.5
C) 0.2
D) 0.1