BIOMEDICAL INSTRUMENTATION(paper no. 1) by SURESH KUMAR.......ptupapers@hotmail.com

BIOMEDICAL INSTRUMENTATION

PAPER NO. 1

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PUT ON: May, 2003

                                              IC - 406
                        BIOMEDICAL INSTRUMENTATION
                              (B.Tech 8th Semester, 2122)
Time : 3 Hours                                                                                        Maximum Marks : 60
NOTE:- This paper consist of Three Sections. Section A is compulsory. Do any Four questions from
                 Section B and any two questions from Section C

                                     Section-A                                         Marks : 20

1Answer the following :
(a) The.......................system is the major hydraulic system in the human body. The process of changing
     a cell from the resting state to the action potential is called..................
(b) The QRS complex is the combined result of the repolarization of the ................ and the ..............of the ventricles.
(c) The recorded representation of bioelectric potentials generated by the neural activity of
     brain is called..............and its frequency ranges form.....................to....................
(d) The peak amplitudes of EMG signal vary from ............... to ................. depending upon
     the location of electrode.
(e) X-rays are high frequency ................. waves. A pH/blood gas analyser is used for ................. .
(f) The kidney act to ........ the blood. Muscle stimulators are useful for ................. .
(g) There are ............. types of pacemakers. Demand pacemakers is a type of ........... pacemaker.
(h) List Four types of EEG artifacts.
(i) What is the indirect method of measuring blood pressure ?
(j) Name different types of electrodes used for EMG recording along with their application area.

                                              Section-B                                          Marks:5 Each

2. Name and describe the operation of major sections of X-ray machine (including block diagram).
3. State purpose, uses, operation and maintainance for pH/blood gas analyzer (include diagram and
    description of pH glass electrode/schematic).
4. Differentiate between the different types of pacemakers. Explain working of synchronous
    pacemaker with the help of block diagram.
5. Explain the process of generation of biomedical potential.
6. Explain the working og heart, generation of ECG signal and standard ECG waveform.

                                               Section-C                                        Marks : 10 Each

7. Explain the working of an multi-channel EEG recording machine (including block diagram).
    Explain the application of EEG in medical field.
8. Write short notes on :
(a) Plethysmography
(b) Phonocardiography.
9. Write notes on application of Ultrasound and Laser in the biomedical instrumentation.

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