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Mcqs MBBS Exams India
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Home >> Radiotherapy >> Mcqs Page 2
(Single Best Answer) Question 11: Which one of the following has the maximum ionization potential ?
A) Electron
B) Proton
C) Helium ion
D) Gamma (ã) - Photon
Answer (Select an option above to get the answer):
(Single Best Answer) Question 12: Which of the following is used in the treatment of differentiated thyroid cancer ?
A) 131I
B) 99mTc
C) 32P
D) 131I-MIBG
Answer (Select an option above to get the answer):
(Single Best Answer) Question 13: Which of the following is not a major criteria for diagnosis of multiple myeloma ?
A) Lytic bone lesions
B) Plasmacytoma on tissue biopsy
C) Bone marrow plasmacytosis >30%
D) 'M' spike >3g% for Ig G, >2g% for Ig A
Answer (Select an option above to get the answer):
(Single Best Answer) Question 14: All of the following are mechanisms of action of Radiation except ?
A) Mutation
B) Free radical production
C) DNA breakage
D) Autoimmunity
Answer (Select an option above to get the answer):
(Single Best Answer) Question 15: Ultraviolet rays most commonly damage ?
A) Heart
B) Liver
C) Pancreas
D) Skin
Answer (Select an option above to get the answer):
(Single Best Answer) Question 16: Which one of the following radioisotope is not used as permanent implant ?
A) Iodine-125
B) Palladium-103
C) Gold-198
D) Caesium-137
Answer (Select an option above to get the answer):
(Single Best Answer) Question 17: The technique employed in radiotherapy to counteract the effect of tumor motion due to breathing is known as ?
A) Arc technique
B) Modulation
C) Gating
D) Shunting
Answer (Select an option above to get the answer):
(Single Best Answer) Question 18: At t=0, there are 6 x 1023 radio atoms of a substance, which decay with a disintegration constant (lambda) equal to 0.01/sec. What would be the initial decay rate ?
A) 6 x 1023
B) 6 x 1022
C) 6 x 1021
D) 6 x 1020
Answer (Select an option above to get the answer):
(Single Best Answer) Question 19: Radiosensitive tumor ?
A) Dysgerminoma
Answer (Select an option above to get the answer):
(Single Best Answer) Question 20: Which waves are not used for deep tumors / Which is not a deep
A) Short wave diathermy
B) Infrared
C) Ultrasonic
D) Microwave
Answer (Select an option above to get the answer):