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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI 600 034
M.Sc.DEGREE EXAMINATION -MEDICAL LAB TECHNOLOGY
FOURTH SEMESTER APRIL 2018
ML 4814- NON INVASIVE TECHNIQUES
Date: 18-04-2018 Dept. No. Max. 100 Marks
Time: 01:00-04:00
Answer ALL the questions PART A 10 x 2 20 Marks
1. Differentiate ionising from non-ionising radiation.
2. Write the four basic densities seen on x ray film.
3. Enumerate the risks of colonoscopy.
4. Expand SPECT and DEXA.
5. Distinguish between sensor and transducer.
6. Write the purpose of occuloplethysmography.
7. List the sources of biomedical signals.
8. Write the types of evoked potential studies.
9. Mention the leads used in electrocardiography.
10. What is the purpose of nerve conduction studies?
Answer any FOUR of the following PART B 4 x 10 40 Marks
11. Explain the conventional and virtual colonoscopy.
12. Describe the biopotential electrodes with suitable diagrams.
13. Discuss the principle, purpose and patient preparation of computed tomography.
14. Draw and explain the basic medical instrumentation system.
15. Give an account on dual energy X ray absorptiometry.
16. Explain the types of stress testing.
Answer any TWO of the following PART C 2 x 20 40 Marks
17. Describe the principle and procedure of direct and indirect opthalmoscopy.
18. Elaborate the principle, patient preparation, procedure and benefits of X rays.
19. Discuss the patient preparation, procedure and disadvantages of MRI.
20. Explain the principle, procedure and advantages of positron emission tomography.