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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
physical half life of I 123
13 hours
26
physical half life of Ind 111
67.2 hours
27
physical half life of N3 Ammonia
10 minutes
28
physical half life of Tch99m, what energy
6h, 140 keV
29
Minor spill limit for TI 201, I 131, Tc 99M, I 123, In 111, Ga 67
in MCi TI201 and Tc99m 100, I131: 1 I123,In111,Ga67 are 10
30
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 ?
0.5 rem (5 mSv).
31
time intervals are optimum for somatostatin receptor scintigraphy with In-111 pentetreotide?
4 and 24 or 24 and 48
32
High radiation area
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
33
Radiation area
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
Very high radiation area
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
Sterility in men and women. How much radiation.
600 to 800 cGy
36
Acute radiation syndrome
50 rad
37
fetus takes up iodine at how many weeks?
1st trimester, 12 weeks
38
I-123, breast feeding resumed how long?
2-3 days
39
Tc 99m, breast feeding resume how long?
12-24 hours
40
I-131, breast feeding resume how long?
you can't. stop it. dont breast feed yo.
41
Gallium Dose
5mCi for inflammation, 10 mCi for tumors
42
Gallium Dose
5mCi for inflammation, 10 mCi for tumors
43
dose for tagged rbc bleeding
20 mCi Tch99
44
dose for tagged rbc bleeding
20 mCi Tch99
45
dose for sulfur colloid scan
5 mCi
46
biologic half life of sulfur colloid
3 min
47
biologic half life of sulfur colloid
3 min
48
sulfur colloid particle size
0.1-1um
49
sulfur colloid particle size
0.1-1um
50
dose for meckel
10 mCi Tch99 pertechnetate
51
dose for meckel
10 mCi Tch99 pertechnetate
52
dose for HIDA
5 mCi
53
dose for HIDA
5 mCi
54
chronic cholecystitis medication
.02 ug/kg CCK over 1 hour
55
chronic cholecystitis medication
.02 ug/kg CCK over 1 hour
56
tch99m HMPAO and tc99m ECD dose
20 mCi, static for 20 min
57
tch99m HMPAO and tc99m ECD dose
20 mCi, static for 20 min
58
dose renal scan, tch99m dtpa or tc99m mag3
10 mCi
59
dose renal scan, tch99m dtpa or tc99m mag3
10 mCi
60
prep for renal a stenosis?
NPO 6h before, stop ACE-I several days before
61
small sized lung nodule that can be detected by PET?
8 mm
62
small sized lung nodule that can be detected by PET?
8 mm
63
Which two agents are both made by generators
``` Tch99 (Mo) Rubidium 82 (Strontium 82) ```
64
Which two agents are both made by generators
``` Tch99 (Mo) Rubidium 82 (Strontium 82) ```
65
Rubidium half ilfe
1 minute
66
Rubidium half ilfe
1 minute
67
max target heart rate
85% or 220 bpm-age
68
max target heart rate
85% or 220 bpm-age
69
adenosine half life
30 seconds
70
ragadenoson half life
3 min
71
ragadenoson half life
3 min
72
sestamibi dose, stress sand rest
10 mci for rest, 20 for stress
73
sestamibi dose and procedure, stress sand rest
10 mci for rest, 20 for stress; wait 30 min after injection
74
sestamibi dose and procedure, stress sand rest
10 mci for rest, 30 mci for stress; wait 30 min after injection
75
thallium procedure
3 mci at stress, image immediately after exercise; and then 3 h ater redistirbution occurs
76
thallium half life
73 hours
77
thallium half life
73 hours
78
yttrium half life, emission, max tissue penetration, particle size, radiation dose
3 days, 175 186 ke, 10 mm; 20-40 um, 100-1000 Gy
79
yttrium half life, emission, max tissue penetration, particle size, radiation dose
3 days, 175 186 ke, 10 mm; 20-40 um, 100-1000 Gy
80
stronium, samarium, yttrium half lives
50 days (2 wks in bones), 45 hours, 65 hours

Grr (10 decks)

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