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Grr > Nucs > Flashcards

Nucs Flashcards

1
Q

half life of F-18

A

110 minutes

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2
Q

NPO before PET for how long?

A

4 hours

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3
Q

How much Tc 99m MAA administered?

A

3-5 mCi

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4
Q

How big are the particle sizes of Tc - 99m MAA

A

10-30 um

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5
Q

Physical half life of Xenon-133?

A

5.3 days

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6
Q

How much does Xenon-133 emit?

A

81 keV gamma photons

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7
Q

How much Tc 99m DTPA given?

A

30 mCi

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8
Q

How long does Tc 99m DTPA particles remain in place?

A

20-60 min

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9
Q

High PE probability

A

2 large mismatch segmental defects

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10
Q

Moderate PE probability

A

1 large mismatch segmental defect
or
triple match in lower lungs

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11
Q

Low PE probability

A 
single large matched defect
or
absent perfusion of entire lung
or
>3 match defects
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12
Q

Very low PE probability

A

nonsegmental lesions, stripe sign, triple match defect in mid-upper lungs

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13
Q

MAA half life

A

4 hours

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14
Q

Gamma photopeaks of gallium

A

90, 190, 290, 390 keV

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15
Q

when do you image gallium

A

48-72 hours later

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16
Q

CCK indication and dose

A

if NPO >24h
dose: 0.02 ug/kg, slow infusion
wait 2 hours before starting test

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17
Q

morphine indication and dose

A

if GB not seen within one hour
dose: 0.04 mg/g, up to max 4 mg
continue imaging 30 more min

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18
Q

Treat multinodular goiter, what and how much

A

30 mCi of I 131

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19
Q

Treat multinodular goiter, what and how much

A

25 mCi of I 131

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20
Q

I 131 emits what

A

beta particles and 364 keV gamma photons

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21
Q

half life of I 131?

A

8 days

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22
Q

I 123 emits what energy, what half life

A

159 keV, 13 hours

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23
Q

Treat Graves disease, dose

A

I 131, 5-15 mCi

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24
Q

physical half-life of Tl-201 thallous chloride

A

73 Hours

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25
Q

physical half life of I 123

A

13 hours

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26
Q

physical half life of Ind 111

A

67.2 hours

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27
Q

physical half life of N3 Ammonia

A

10 minutes

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28
Q

physical half life of Tch99m, what energy

A

6h, 140 keV

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29
Q

Minor spill limit for TI 201, I 131, Tc 99M, I 123, In 111, Ga 67

A

in MCi
TI201 and Tc99m 100,
I131: 1
I123,In111,Ga67 are 10

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30
Q

A licensee may authorize the release from its control of any individual who has been administered unsealed by-product material or implants containing by-product material if the total effective dose equivalent to any other individual from exposure to the released individual is not likely to exceed ?

A

0.5 rem (5 mSv).

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31
Q

time intervals are optimum for somatostatin receptor scintigraphy with In-111 pentetreotide?

A

4 and 24 or 24 and 48

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32
Q

High radiation area

A

place where radiation levels could result in an individual receiving greater than 0.1 rem (1 mSv) in 1 hour at 30 cm from the radiation source

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33
Q

Radiation area

A

radiation levels could result in an individual receiving a dose equivalent in excess of 0.005 rem (0.05 mSv) in 1 hour at 30 cm from the radiation source.

34
Q

Very high radiation area

A

where radiation levels could result in an individual receiving an absorbed dose in excess of 500 rad (5 Gy) in 1 hour at 1 m.

35
Q

Sterility in men and women. How much radiation.

A

600 to 800 cGy

36
Q

Acute radiation syndrome

A

50 rad

37
Q

fetus takes up iodine at how many weeks?

A

1st trimester, 12 weeks

38
Q

I-123, breast feeding resumed how long?

A

2-3 days

39
Q

Tc 99m, breast feeding resume how long?

A

12-24 hours

40
Q

I-131, breast feeding resume how long?

A

you can’t. stop it. dont breast feed yo.

41
Q

Gallium Dose

A

5mCi for inflammation, 10 mCi for tumors

42
Q

Gallium Dose

A

5mCi for inflammation, 10 mCi for tumors

43
Q

dose for tagged rbc bleeding

A

20 mCi Tch99

44
Q

dose for tagged rbc bleeding

A

20 mCi Tch99

45
Q

dose for sulfur colloid scan

A

5 mCi

46
Q

biologic half life of sulfur colloid

A

3 min

47
Q

biologic half life of sulfur colloid

A

3 min

48
Q

sulfur colloid particle size

A

0.1-1um

49
Q

sulfur colloid particle size

A

0.1-1um

50
Q

dose for meckel

A

10 mCi Tch99 pertechnetate

51
Q

dose for meckel

A

10 mCi Tch99 pertechnetate

52
Q

dose for HIDA

A

5 mCi

53
Q

dose for HIDA

A

5 mCi

54
Q

chronic cholecystitis medication

A

.02 ug/kg CCK over 1 hour

55
Q

chronic cholecystitis medication

A

.02 ug/kg CCK over 1 hour

56
Q

tch99m HMPAO and tc99m ECD dose

A

20 mCi, static for 20 min

57
Q

tch99m HMPAO and tc99m ECD dose

A

20 mCi, static for 20 min

58
Q

dose renal scan, tch99m dtpa or tc99m mag3

A

10 mCi

59
Q

dose renal scan, tch99m dtpa or tc99m mag3

A

10 mCi

60
Q

prep for renal a stenosis?

A

NPO 6h before, stop ACE-I several days before

61
Q

small sized lung nodule that can be detected by PET?

A

8 mm

62
Q

small sized lung nodule that can be detected by PET?

A

8 mm

63
Q

Which two agents are both made by generators

A 
Tch99 (Mo)
Rubidium 82 (Strontium 82)
64
Q

Which two agents are both made by generators

A 
Tch99 (Mo)
Rubidium 82 (Strontium 82)
65
Q

Rubidium half ilfe

A

1 minute

66
Q

Rubidium half ilfe

A

1 minute

67
Q

max target heart rate

A

85% or 220 bpm-age

68
Q

max target heart rate

A

85% or 220 bpm-age

69
Q

adenosine half life

A

30 seconds

70
Q

ragadenoson half life

A

3 min

71
Q

ragadenoson half life

A

3 min

72
Q

sestamibi dose, stress sand rest

A

10 mci for rest, 20 for stress

73
Q

sestamibi dose and procedure, stress sand rest

A

10 mci for rest, 20 for stress; wait 30 min after injection

74
Q

sestamibi dose and procedure, stress sand rest

A

10 mci for rest, 30 mci for stress; wait 30 min after injection

75
Q

thallium procedure

A

3 mci at stress, image immediately after exercise; and then 3 h ater redistirbution occurs

76
Q

thallium half life

A

73 hours

77
Q

thallium half life

A

73 hours

78
Q

yttrium half life, emission, max tissue penetration, particle size, radiation dose

A

3 days, 175 186 ke, 10 mm; 20-40 um, 100-1000 Gy

79
Q

yttrium half life, emission, max tissue penetration, particle size, radiation dose

A

3 days, 175 186 ke, 10 mm; 20-40 um, 100-1000 Gy

80
Q

stronium, samarium, yttrium half lives

A

50 days (2 wks in bones), 45 hours, 65 hours

Grr (10 decks)

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