SINGLE-PHOTON RADIOPHARMACEUTICALS OTHER THAN TC-99m​

Question 1

Iodine 131​
Energy: __ keV​
Half-life:__days​
​

Answer 1

364
8

Question 2

Presence of beta particle emissions which leads to a higher patient dose​
Used primarily for thyroid cancer therapy and treatment of hyperthyroidism

Answer 2

Iodine 131​

Question 3

Iodine 123​
Energy:___ keV​
Half-life: ____hours​

​

​

Answer 3

159
13.2

Question 4

Suited for imaging with the gamma camera​
Not readily available

Answer 4

Iodine123

Question 5

Xenon-133
Advantage over Tc99m DTPA:

Answer 5

Safe to use in patients with chronic obstructive lung disease

Question 6

Xenon 133 & 127
Disadvantage over Tc99m DTPA:

Answer 6

Not readily available

Question 7

xenon 133 energy & half -life

Answer 7

: 81 keV
5.2 days

Question 8

Xenon-127
Energy: ___and ___ keV

Answer 8

172, 203 & 375

Question 9

xenon 127 half life

Answer 9

36 days

Question 10

FLUORINE 18

production source:
mode of decay:
half-life:

Answer 10

cyclotron
positron emission
110

Question 11

carbon 11

production source:
mode of decay:
half-life:

Answer 11

cyclotron
positron emission
20

Question 12

nitrogen 13

production source:
mode of decay:
half-life:

Answer 12

cyclotron
positron emission
10

Question 13

oxygen 15

production source:
mode of decay:
half-life:

Answer 13

cyclotron
positron emission
2

Question 14

Galium 68

production source:
mode of decay:
half-life:

Answer 14

Generator
(Germanium 68)
positron emission
68

Question 15

Rubidium 82

production source:
mode of decay:
half-life:

Answer 15

Generator
(Strontium 82)
Positron emission
1.3

Question 16

Thallium 201

Energy: ___and __ keV

Half-life: ___ hours

Answer 16

135 & 167
73.1

Question 17

Used for cardiac perfusion imaging

Energies 135 and 167 keV occurs in low abundance that results in poor imaging results.

Not readily available

Answer 17

Thallium 201

Question 18

Indium 111

Energy: ___ and___ keV
Half-life: ___ days

Answer 18

172 & 245
2.8

Question 19

Detects neuroendocrine tumors

Answer 19

Indium 111 pentetreotide (OctreoScan)

Question 20

Krypton 81m

Energy:__ keV
Half life:___ seconds

Answer 20

190
13

Question 21

Very expensive

Answer 21

Krypton 81m

Question 22

4 Single Photon Radionuclide other
than Tc-99m
•

Answer 22

Radioiodine I-131 and I-123
• Indium – 111
• Thallium-201
• Radioactive inert gas