Rt Quiz #1
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This Quiz will test your basic knowledge of RT stuff YES this can be used for continuing education time! References*washington/leaver "principles and practice of radiation therapy"
- 1.Dr. Nijjar wants to weight a POP beam 2.5:1 ant : post. What is the percentage that you would place in the MU calculator for the ant beam
- 2.Code Brown what is it?
- 3.Dosimetry interlock, what do you do?
- A.
Call Phil and ask for the code
- B.
You know the code so you punch it in and continue
- C.
Call a Med. Physicist and wait
- D.
Get the patient off the bed and call TMG
- E.
Tell the patient to hold still and go for coffee
- 4.What is the primary intetaction at work with 15mv photons
- A.
Photoelectric effect
- B.
Compton scatter
- C.
Pair Production
- D.
Rayleigh scattering
- 5.What are the 4 R's of radiobiology
- A.
Repair
- B.
Redistribution
- C.
Repopulation
- D.
Reorganization
- E.
Reoxygenation
- 6.Tumors arising from mesenchymal cells are called_____________?
- 7.A common cause of malignant melanoma and basal cell carcinoma is*
- A.
Radiant energy
- B.
Epstein-Barr virus
- C.
Polycyclic Hydrocarbons
- D.
Asbestos
- E.
Too much banter
- 8.All of these are bases in RNA EXCEPT*
- A.
Adenine
- B.
Guanine
- C.
Uracil
- D.
Thymine
- 9.What is the term that describes certain chemicals that enhance the response of cells to Radiation?*
- A.
Radioprotectors
- B.
Radiosensitizers
- C.
Biologic rescue factors
- D.
Free Radicals
- 10.Bremsstrahlung interactions occur:*
- A.
At high energies in the patient
- B.
At low energies in the patient
- C.
In the target
- D.
As the electrons are boiled off the target
- 11.On average what is the calculated change in output of the cobalt source per month in percentage.*
- A.
.525%
- B.
1.0%
- C.
5.25%
- D.
9.52%
- E.
2.0%
- 12.How many bones in the lower leg? (knee down) including the foot
- A.
12
- B.
3
- C.
29
- D.
58
- E.
23
- 13.
![Who dis? - ProProfs]( "Who dis?")
Who dis? - 14.What is the minimum number of feducial seeds needed to perform a marker match with OBI ?
- 15.Where is CARO this year?
- 16.HVL in lead for cobalt?
- 17.Re What is the maximum jaw opening in lenght (sup/inf) on TOMO?
- A.
1cm
- B.
2cm
- C.
3cm
- D.
4cm
- E.
5cm
- 18.What is the best way to fight the spread of infection?
- 19.What is the annual dose limit for the general public in Sv?
- A.
1 Sv
- B.
10mSv
- C.
1mSv
- D.
100mSv
- E.
50 mSv
- 20.What is the maximum dose a radiation worker can get in 5 years?
- A.
50 mSv
- B.
20 mSv
- C.
1 Sv
- D.
100 mSv
- 21.Which lymphatic vessel returns lymph from the entire body (except right arm upper right thorax head and neck)*
- A.
Cisterna Chyli
- B.
Thoracic Duct
- C.
Right Lymphatic Duct
- D.
Superior Vena Cava
- E.
AC bypass valve
- 22.What does the GTV contain*
- A.
Tumor
- B.
Involved Lymphatics
- C.
Normal Tissue
- D.
All of the above
- 23.Cobalt treatment, pop beams 20cm sep, SSD technique. Where does the max dose fall?*
- A.
Skin Surface
- B.
Mid plane
- C.
.5 cm below skin
- D.
5 cm below skin
- 24.Dr. Xavier asks you to tell him what the V20 of the lungs to patient Ted is. What is he asking for?
- A.
The dose that 20% of the lungs are getting
- B.
The probability that the patient will have complications in 20 months
- C.
The % of the lungs getting 20 Gy
- D.
The dose that will spare 20% of the patients lung volume
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