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Nukes > Regulatory/Dose > Flashcards

Regulatory/Dose Flashcards

1
Q

Annual dose limit for fetus for whole pregnancy

A

0.5 rem (5 mSv)

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2
Q

Occupational annual dose equivalent to lens

A

15 rem (150 mSv)

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3
Q

MQSA daily tests

A
  • processor QC - darkroom cleanliness
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4
Q

types of NRC licenses

A
  • broad - limited - general in vitro
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5
Q

how long after injection is Tc-99m sulfur colloid imaging performed?

A

30 min

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6
Q

definition of restricted area

A

area receiving > 2 mrem/hr

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7
Q

sincalide dose

A

.02 ug/kg over 60 min

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8
Q

instrument calibration records must be saved for how long?

A

3 years

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9
Q

I-123 normal biodistribution

A

liver, spleen, adrenals, heart, salivary glands

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10
Q

In-111 DTPA used for which studies

A
  • shunt studies - NPH - brain death
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11
Q

estimated absorbed fetal dose for abdominal CT

A

30 mGy

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12
Q

maximum skin entrance dose for fluoro

A

88 mGy/min

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13
Q

MQSA weekly tests

A
  • Viewbox conditions - Phantom Evaluation
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14
Q

MQSA quarterly test

A
  • Repeat analysis
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15
Q

MQSA semi-annual tests

A
  • Screen-film contrast - Compression test - Darkroom Fog
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16
Q

maximum dose of lidocaine

A

4-5 mg/kg

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17
Q

maximum dose of lidocaine with epinephrine

A

7 mg/kg

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18
Q

contrast reaction premed regimens

A
  • 50 mg prednisone PO at 13, 7, and 1H before the exam with 50 mg diphenhydramine 1H before the exam - 200 mg IV hydrocortisone q4H before exam with 50 mg diphenhydramine 1H before injection (used in the emergency setting) - 32 mg methylprednisolone PO 12 and 2 hours before the exam.
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19
Q

who developed CPT codes?

A

AMA

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20
Q

worthless test

A

D

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21
Q

100% sensitivity & 100% specificity

A

A

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22
Q

fetal dose from abd/pelvis CT

A

25 mGy

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23
Q

how long must record of recordable event be kept?

A

5 years

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24
Q

whole body dose administered to wrong patient which is reportable

A

50 mSv

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25
Q

cumulative dose for cataracts

A

0.5 Gy

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26
Q

stochastic effects (2)

A

cancer

birth defects

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27
Q

what kind of iodinated contrast can be used in intrathecal injection?

A

non-ionic low-osmolality

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28
Q

which iodinated contrast materials can be used intrathecally (names)?

A
  • iopamidol
  • iohexol
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29
Q

osmolality of HOCM

A

1570 mOsm/kg H20

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30
Q

osmolality of IOCM

A

290 mOsm/kg H20

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31
Q

osmolality of LOCM

A

~ 600 mOsm/kg H20

32
Q

t 1/2 of iodinated contrast

A

2 hours

33
Q

clearance of iodinated contrast

A

glomerular filtration

34
Q

Isovue

A

iopamidol

35
Q

sentinel event

A

15 Gy

36
Q

dose of IV epi

A

1 mL (0.1 mg) (1:10,000)

37
Q

dose of IM epi

A

0.3 ml (0.3 mg) (1:1,000)

38
Q

% cancer risk for body CT (10 mSv)

A

0.1 %

39
Q

early transient erythema skin dose

A

2 Gy

40
Q

severe “robust” erythema skin dose

A

6 Gy

41
Q

telangiectasia skin dose

A

10 Gy

42
Q

dry desquamation skin dose

A

13 Gy

43
Q

moist desquamation/ulceration skin dose

A

18 Gy

44
Q

secondary ulceration skin dose

A

24 Gy

45
Q

increased cancer risk % per Sv for low dose exam

A

5% per Sv

46
Q

GI syndrome threshold dose

A

10 Gy

47
Q

best metric for cumulative dose/radiation skin burn

A

reference point dose (mGy)

48
Q

where is interventional reference point (IRP) relative to isocenter?

A

15 cm closer to focal spot

49
Q

Peak skin dose (PDS) is calculated off of which value?

A

IRP (interentional reference point) Kair

50
Q

mean KAP in radiographic imaging

A

1 Gy-cm2

51
Q

median KAP in GI/GU fluoroscopy

A

20 Gy-cm2

52
Q

median KAP in IR

A

200 Gy-cm2

53
Q

macrocyclic GBCM

A
  • gadoteridol
  • gadobutrol
  • gadoterate
54
Q

Group 2 GBCM

A
  • gadoteridol
  • gadobutrol
  • gadoterate
  • gadoxetate

(macrocyclics + gadoxetate)

55
Q

ACR adult CT abdomen reference CTDIvol

A

25 mGy

56
Q

ACR adult CT head reference CTDIvol

A

75 mGy

57
Q

INcreased ROI does what to average SUV?

A

DEcrease

58
Q

dose for bone marrow ARS

A

2 Gy

59
Q

bone marrow ARS

  • latent period
  • possible to survive?
A

1 - 6 weeks

yes

60
Q

GI ARS

  • dose
  • latent period
  • outcome
A
  • 8 Gy
  • 5-7 days
  • death within 2 weeks
61
Q

CNS ARS

  • dose
  • latent period
  • outcome
A
  • 20-50 Gy
  • 4 - 6 hours
  • death within 3 days
62
Q

vomiting 2-3 hours after exposure and skin redness 12-24 hours after exposure WB dose

A

1-2 Gy

63
Q

vomiting 1-2 hours after exposure and skin redness 8-15 hours after exposure WB dose

A

2-4 Gy

64
Q

vomiting <1 hour after exposure and skin redness 1-6 hours after exposure WB dose

A

> 4 Gy

65
Q

acute exposure threshold for cataract

A

2.5 Gy

66
Q

dry desquamation time period

A

4 weeks

67
Q

moist desquamation time period

A

4 weeks

68
Q

secondary ulceration time period

A

> 6 weeks

69
Q

telangiectasia time period

A

52 weeks

70
Q

severe robust erythema time period

A

1 week

71
Q

early transient erythema time period

A

hours

72
Q

dose to depress circulating lymphocytes

A

0.25 Gy

73
Q

LD 50/60

  • meaning
  • which tissue
  • value
A
  • lethal dose at 60 days for 50% of population
  • marrow
  • 3-4 Gy
74
Q

LD 50/4

  • meaning
  • which tissue
  • value
A
  • lethal dose at 4 days for 50% of population
  • GI
  • 8-10 Gy
75
Q

30% of people will experience nausea at what dose?

A

0.75 - 1.25 Gy

Nukes (11 decks)

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