LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
M.Sc. DEGREE EXAMINATION – MEDICAL LAB TECHNOLOGY
FOURTH SEMESTER – APRIL 2006
ML 4805 - NON INVASIVE TECHNIQUES
(Also equivalent to ML 4801)
Date & Time : 20-04-2006/FORENOON
Dept. No.
Part A
Max. : 100 Marks
10  2 = 20
(Answer All)
1. Name the four types of electrode system.
2. What is heart block? Mention its types.
3. Define montage electrode selector.
4. Name the two types of computed tomography.
5. What are the four basic densities on an X ray and mention the colour which
appears on the X ray film.
6. Mention
the
interfering
electroencephalography.
factors
that
occur
while
performing
7. What are the causes for hyperfluorescence and hypofluorescence.
8. List the four MRI methods that are available for examination.
9. Name the three tests that are performed in evoked potential studies.
10. What are invasive and non-invasive techniques.
Part B
(Answer any four)
4  10 = 40
11. Write the principle and working mechanism of electroencephalography.
12. Describe visual acuity in detail.
13. Describe the principle of X ray. Mention its types and uses.
14. Explain the principle of Doppler ultrasonography.
15. Explain principle, procedure and limitations of MRI.
16. Explain the principle and recording set up of electromyography.
Part C
(Answer any two)
2  20 = 40
17. Explain in detail the principle, procedure and recordings of ECG.
18. Describe in detail the Transcranial Doppler studies.
19. Explain positron emission tomography in detail.
20. Explain the principle, procedure and working mechanism of computed
tomography.
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