MCQOPTIONS

Explore topic-wise MCQs in Clinical Science.

This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Clinical Science knowledge and support exam preparation. Choose a topic below to get started.

1.	Batch of cells labeled as A: In the hypoxic condition, the amount of dosage required is 3 Gy but in oxygenic condition, the amount of dosage needed is 2. Batch of cells labeled as B: In hypoxic condition, the amount of dosage required is 30 Gy but in oxygenic conditions, the amount of dosage needed is 10.
A.	nFrom the above information, what conclusions can be drawn?
B.	Batch A is not cancerous
C.	Batch B has a higher OER
D.	Batch A has a higher OER
E.	Batch B is cancerous
Answer» C. Batch B has a higher OER

2.	Since there is a tumour, we can ensure that there will be oxygen present.
A.	True
B.	False
Answer» B. False

3.	What role does oxygen play?
A.	It causes a damage to the DNA
B.	It oxygenates the cells that have undergone necrosis
C.	It regulates the work of free radicals
D.	It reduces the tumour size
Answer» D. It reduces the tumour size

4.	There are two cells, one with OER as 2.5 and other as 7. Which cell is more sensitive to radiation?
A.	The cell with OER 2.5
B.	The Cell with OER 7
C.	Both the cells
D.	Insufficient data
Answer» B. The Cell with OER 7

5.	What is the oxygen effect?
A.	Detrimental effect of oxygen in presence of therapeutic radiations
B.	A positive effect of oxygen in absence of therapeutic radiations
C.	Enhancement effect of oxygen in presence of therapeutic radiation
D.	Presence of oxygen during radiation treatment
Answer» D. Presence of oxygen during radiation treatment

6.	What radiations occur when the electrons are used in radio therapy?
A.	Ionizing Radiations
B.	Gamma Rays
C.	Bremsstrahlung Radiation
D.	Infrared Rays
Answer» D. Infrared Rays

7.	When radiation therapy is done to reduce the effect of cancer, it is called as ______
A.	Mutative Treatment
B.	Reduction Treatment
C.	Palliative Treatment
D.	Genesis Treatment
Answer» D. Genesis Treatment

8.	The machine used for radiotherapy is called as _________
A.	Therapeutic X-Ray machine
B.	Linear Accelerator
C.	Diathermy Machine
D.	Radioactive Ultrasound Machine
Answer» C. Diathermy Machine

9.	Why are the fast dividing cells more easily targeted?
A.	Due to the high protein and carbohydrate content of the cells
B.	Due to the higher energy of the cells
C.	Due to the low energy of the cells
D.	Due to the high oxygen content of the cells
Answer» C. Due to the low energy of the cells

10.	In the cardiovascular system, which is more affected by the radiations?
A.	Capillaries
B.	Artery
C.	Vein
D.	Cardiac Muscles
Answer» B. Artery

11.	Between the oesophagus and lungs, lungs are more sensitive to radiations.
A.	True
B.	False
Answer» C.

12.	Which of the following cells have a low resistance to radiations?
A.	Lymphocytes, Spermatogonia, Erythroblasts, Intestinal crypt cells
B.	Megakaryocytes, embryo, pancreatic cells, Intestinal crypt cells
C.	Lymphocytes, Spermatogonia, hepatic cells, nephrons
D.	Megakaryocytes, neurons, cardiac cells, Intestinal crypt cells
Answer» B. Megakaryocytes, embryo, pancreatic cells, Intestinal crypt cells

13.	Which of the following pair of scattering is important for diagnostic purposes?
A.	Coherent and Compton
B.	Photoelectric and Pair Production
C.	Compton and Photoelectric
D.	Pair Production and Disintegration
Answer» D. Pair Production and Disintegration

14.	Which of the following pair of scattering is important for therapeutic purposes?
A.	Coherent and Pair Production
B.	Photoelectric and Disintegration
C.	Compton and Photoelectric
D.	Pair Production and Disintegration
Answer» E.

15.	The process of destroying cancer cells with the help of radiation is ________
A.	radiotherapy
B.	physiotherapy
C.	uroplasty
D.	rehabilitation
Answer» B. physiotherapy