9 - Radiation

Question 1

Gray

Answer 1

Absorption of on ejoule of radiation energy per one kilogram of matter

Question 2

Vast majority of tumors treated with radiation will die due to

Answer 2

Necrosis

Question 3

The four R

Answer 3

Repair, repopulation, redistribution, reoxygenating

Question 4

Which tumor can u see response rlly quickly

Answer 4

Lymphoma

Question 5

The most important R

Answer 5

Repair

Question 6

Repair can happen in both

Answer 6

Tumor and normal cells

Question 7

What % of normal cells are recovered due to compensatory proliferation

Answer 7

50 - 60

Question 8

Redistribution has to do with

Answer 8

Cell cycles

Question 9

What cell phase is cell most sensitive to radiation

Answer 9

G2/M

Question 10

What two blocks of cell cycle

Answer 10

G1 S and G2 M

Question 11

What % of tumors have hypoxia

Answer 11

50

Question 12

Oxygenated cells are more sensitive to

Answer 12

Radiation

Question 13

Acute hypoxia

Answer 13

Reopening of closed capillaries

Question 14

Chronic hypoxia

Answer 14

Oxygenated cells die allowing oxygen to diffuse to new areas

Question 15

Definitive radiation

Answer 15

Long term tumor control, daily treatments, small daily dose

Question 16

Palliative radiation

Answer 16

Shorter survival times, weekly treatments, high daily dose

Question 17

Acute side effects of radiation related to

Answer 17

Stem cell damage

Question 18

Acute side effects starts

Answer 18

During the third week of treatment

Question 19

Acute side effects last

Answer 19

2 -3 weeks after treatment

Question 20

Acute Sid effects are related to

Answer 20

Total dose

Question 21

Special acute effects

Answer 21

Tear glands, lung tissue, brain tissue

Question 22

Topical treatment to acute side effects

Answer 22

Clean radiation site, ointments, vitamin E oil

Question 23

Oral treatment for acute side effects

Answer 23

NSAID , Gabapentin, tramadol, opioids

Question 24

Ointments used for acute side effects

Answer 24

Proteque and silvadene

Question 25

Late side effects of radiation are related to

Answer 25

Fraction size

Question 26

Late effects of radiation

Answer 26

Necrosis, fibrosis and secondary tumor

Question 27

Late side effects are known as

Answer 27

Stochastic events - random, months to years later

Question 28

Latest radiotherapy

Answer 28

Stereotactic radiotherpahhy

Question 29

SRS

Answer 29

Stereotactic radio surgery

Question 30

SRS was made for

Answer 30

Neuro tissue

Question 31

SRBT made for

Answer 31

Multiple fractions, tissue besides neuro

Question 32

Stereotactic radiotherapy can delivered what doses

Answer 32

10 - 20

Question 33

How many beans angle for SRS

Answer 33

5 to 9

Question 34

Each beam can have how many beamlets SRS

Answer 34

100

Question 35

Normal tissues receives what dose in SRS

Answer 35

Minimal

Question 36

Tumor area receives what doses with SRS

Answer 36

High

Question 37

Gammaknife is what source

Answer 37

Cobalt

Question 38

Benefit of stereotactic radiotherapy

Answer 38

Less acute side effects, shorter course of radiation , less anesthesia

Question 39

Pitfalls fo SRS

Answer 39

Not all rumors can be treated, must have target, scar lines cannot be treated

Question 40

Late side effects of pituitary tumors

Answer 40

Blindness 8 - 12 months post treatment

Question 41

Best to treat pituitary treatment with

Answer 41

Congenital fractionated protocols

Question 43

Mast cell tumor have what chance of cure

Answer 43

95

Question 44

Brain tumors have what response rate

Answer 44

95

Question 45

Median survival time brain tumor

Answer 45

12 months

Question 46

Thyroid definitive median survival time

Answer 46

4 years

Question 47

Thyroid median survival time palliative

Answer 47

2

Question 48

Anal sac carcinomas definitive time

Answer 48

18 - 24 months

Question 49

Anal sac carcinomas palliative

Answer 49

12 - 18 months

Question 50

Nasal carcinoma.sarcoma response rate

Answer 50

95 - 98

Question 51

Definitive nasal carcinoma

Answer 51

12 - 18 months

Question 52

Palliative nasal carcinoma

Answer 52

6 - 8 months

Question 53

Nasal lymphoma definitive

Answer 53

18 - 24 months

Question 54

Nasal lymphoma palliative

Answer 54

2 - 12 months

Question 55

Oral malignant melanoma response rate 90

Answer 55

Oral squamous cell carcinoma definitive

Question 56

Oral squamous cell carcinoma Definitiev

Answer 56

18 - 25

Question 57

Palliative oral sq cell carcinoma dogs

Answer 57

12 months

Question 58

Oral sq cell carcinoma cats palliative

Answer 58

1/3 do not response