Rad protection ch 7

1.

1 point

A non-stochastic effect is generally associated with an acute health problem and has a __________________________

Dose threshold response that is non-linear

Dose threshold response that can be linear or non-linear

Dose threshold response that is linear

2.

1 point

The mean survival time for GI syndrome is

no more than 3 days

10 to 60 days

4 to 10 days

3.

1 point

Diagnostic x-ray procedures:

Always result in a whole body exposure

Always result in a partial body exposure

Usually results in a partial body exposure

Sometimes results in a whole body exposure

4.

1 point

What characteristic of DRR is a straight line?

Linear

non-threshold

Threshold

non-linear

5.

1 point

____________ are the most radioresistant cells

Osteocytes

Nerves

Basophils

Osteoblasts

6.

1 point

Put the Acute Radiation Syndrome events into order

Prodromal, Latent, Manifest illness, Recovery or death

Recovery or death, Manifest illness, Latent, Prodromal

Latent, Prodromal, Manifest Illness, Recovery or death

Manifest illness, Prodromal, Latent, Recovery or Death

7.

1 point

The sequence of events after a high level whole body exposure leading to death within days or weeks

Latent period

Acute radiation syndrome

Chronic radiation syndrome

Prodromal symptoms

8.

1 point

Non-stochastic events can be early or late

True

False

9.

1 point

The most radio-resistant tissues are:

Lymphoid

Epithelial

Nervous

Bone

10.

1 point

Direct deaths are associated with:

Low level whole body exposure

Low level partial body exposure

High level whole body exposure

High level partial body exposure

11.

1 point

The most radio-resistant organs are:

Stomach

Heart

Brain

Small intestines

12.

1 point

Manifest illness period includes:

Prodromal

Latent

GI syndrome

Hematilogic syndrome

CNS syndrome

13.

1 point

An effect that is observed in the person exposed is __________

Gametic

Somatic

Lymphatic

Genetic

14.

1 point

It is possible to recover from the GI syndrome

True

False

15.

1 point

Radiation exposure to health care workers is considered to be

Non-threshold

Linear

Threshold

Non-linear

16.

1 point

The principle observable sign (of tissue damage) is ________

alopecia

atrophy

hematoma

melanoma

17.

1 point

_______ consists of acute clinical symptoms that occure within hours of the exposure and continue for 24 to 48 hours

Latent period

Prodromal period

Manifest illness

Recovery or death

18.

1 point

There is no safe dose if it is said to be

Non-threshold

Linear

Threshold

Non-Linear

19.

1 point

Death form the GI syndrome occurs principally from severe damage to the ______________

central nervous system

Liver

lining cells of the GI tract

blood cells

20.

1 point

There have been a few documented direct deaths from diagnostic x-ray exposure.

True

False

21.

1 point

If the dose is high enough radiation can be observed at the tissue level

True

False

22.

1 point

Occurs with a whole body dose ranging from 1000 to 5000 rads

GI syndrome

CNS syndrome

Hematologic syndrome

23.

1 point

The mean survival time for hematologic syndrome is ______

no more than 3 days

4 to 10 days

10 to 60 days

24.

1 point

It is possible to recover from the ___________ syndrome if exposed to a dose at the lower end of the spectrum.

GI

CRN

hematologic

25.

1 point

What characteristic of DRR originates on the Y-axis?

Linear

Non-threshold

Threshold

Non-linear

26.

1 point

Radiation induced cancer and genetic effects follow a ___________ DRR

linear

non-threshold

threshold

non-linear

27.

1 point

What characteristic of DRR is curved?

Linear

Non-linear

Threshold

Non-threshold

28.

1 point

Symptoms of CNS syndrome are the same as GI plus:

Fatigue

Ataxia

Lethargy

Edema

Vasculitis

Anemia

Infection

Meningitis

29.

1 point

The most radiosensitive organs are:

Eyes

Small intestines

Kidneys

Large intestines

30.

1 point

Early (acute) effects of radiation exposure are produced by:

Low radiation dose delivered over a few minutes

High radiation dose delivered over several hours

High radiation dose delivered over a few minutes

Low radiation dose delivered over several days

31.

1 point

At the cellular level __________________ are the most radio-sensitive cells in the body

Gametes

Nerves

Muscles

Lymphocytes

32.

1 point

Occurs with a whole body dose of more than 5000 rads

CNS syndrome

Hematologic syndrome

GI syndrome

33.

1 point

Effects that demonstrate the existence of a threshold and the severity of the response increases as the absorbed dose increases

Stochastic effect

Linear

Non-stochastic effect

Non-threshold

34.

1 point

Late (chronic) effects of radiation exposure are produced by:

High radiation doses delivered over several minutes

low radiation doses delivered over years

low radiation doses delivered over several days

high radiation doses delivered over several days

35.

1 point

Occurs with a whole body dose ranging from 200 to 1000 rads

Hematologic syndrome

CNS syndrome

GI syndrome

36.

1 point

What characteristic of DRR originates on the X-axis?

Threshold

Non-linear

Linear

Non-threshold

37.

1 point

The mean survival time for CNS syndrome is:

10 to 60 days

No more than 3 days

4 to 10 days

38.

1 point

The most radio-sensitive tissues are:

Muscular

Lymphoid

Nervous

Hematological

39.

1 point

The ____ the dose and the _____ the time, the more severe the biological response.

Higher

Shorter

Lower

Longer

40.

1 point

The severity of ARS depends on:

Dose

Time

Shielding

Distance

41.

1 point

There is a safe dose if it is said to be ___________

Non-threshold

Threshold

Non-linear

Linear

42.

1 point

It is not possible to recover from the CNS syndrome

True

False

43.

1 point

A partial body exposure is _______________ at producing a tissue response than a whole body exposure.

More effective

Less effective

44.

1 point

A mathematical relationship between a dose level and the severity of the observed response is a______________

Non-linear response

Dose response relationship

Threshold response

Linear Response

45.

1 point

Effects, both early and late, can be:

Ceruminous

Somatic

Sematic

Genetic

46.

1 point

A period of a few hours to a few weeks when the patient becomes free of all symptoms

Recovery or death

Latent period

Prodromal period

Manifest illness period

47.

1 point

An effect that is observed in the offspring of the person who was exposed is _________

Mitotic

Semantic

Somatic

Genetic

48.

1 point

Whole body exposures are a real hazard in __________________

MRI

Nuclear medicine

Industrial applications

CT

49.

1 point

DRR is used to

design therapeutic treatment routines

induce cancer in patients

mutate cells

provide information on the effects of low dose radiation

50.

1 point

The symptoms of GI syndrome is the same as hematologic plus:

Lethargy

Fatigue

Ataxia

Electrolyte imbalance

Edema

Shock