Radiopharmacy

Question 1

What can radioactive drugs be used for?

Answer 1

Diagnostic purposes

Therapeutic purposes

Question 2

What is alpha decay?

Answer 2

Ejects a doubly charged helium nucleus

Question 3

What is beta decay?

Answer 3

Excess neutrons gain stability by converting neutron to a proton and negatron

Question 4

What is gamma radiation?

Answer 4

No particles emitted only gamma photons

Question 5

What are the differences between isotopes and X-rays ?

Answer 5

Isotopes show function and change as it happens.

X-rays only show structure and changes post event

Question 6

Name 6 radionuclides

Answer 6

99m Technetium
201 thallium
111 indium 
123 iodine 
131 iodine 
67 gallium

Question 7

What are the advantages to using Tc-99m?

Answer 7

Easy to manufacture
Readily available
Short half life
Decays to stable isotope

Question 8

What is the half life of 99M Technetium?

Answer 8

6 hours

Question 9

What is the half life of 201 thallium?

Answer 9

71 hours

Question 10

What is the half life of of 111 indium?

Answer 10

2.6 days

Question 11

What is the half life of iodine 123?

Answer 11

13 hours

Question 12

What is the half life of 131 iodine?

Answer 12

8 days

Question 13

What is the half life of 67 Gallium?

Answer 13

78 hours

Question 14

What is DMSA used to look at?

Answer 14

Function and renal outline.

Extensively in paediatric nephrology

Question 15

What is inhaled to look at lung ventilation?

Answer 15

Krypton-81 gas

Question 16

What is injected to look at lung perfusion?

Answer 16

MAA