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DEPARTMENT OF INSTRUMENTATION TECHNOLOGY

BIOMEDICAL INSTRUMENTATION (V SEMESTER)

QUIZ QUESTION BANK

1. ____________________heart rate meters work on the basis of converting each R

wave of ECG into a pulse of fixed duration and amplitude.

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2. Patient monitors are also known as __________________________. 1

3. The memory of bedside patient monitoring system (Albury instruments, UK)

comprises of ____________ bytes of ROM and ___________bytes of RAM with

________________ samples of ECG.

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4. An instantaneous heart rate meter facilitates detection of ______________________. 1

5. The ______________________________________consists of a Ga-As infraredemitting diode and a phototransistor in a compact package.

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6. In a cardiotachometer, the slew rate limiter is used to___________________________________

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7. The methods used for detection of volume changes of blood flow are

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3.

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8. The most commonly used method to measure pulsatile blood volume changes is by

_______________________.

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9. In the instantaneous heart rate meter false alarm is reduced by using a_________________.

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10. In the reflectance method of measuring pulse rate the _______________ and

_______________are placed adjacent to each other.

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11. For blood pressure measurement, the ________________________ artery is the

object from where the ultrasound gets reflected.

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12. The direct method of pressure measurement is used when highest degree of

___________________,____________________________ and

______________________ is required.

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13. ____________________is the natural pacemaker of the heart. 1

14. The output voltage of an external pacemaker is the reverse of _________and that of

the internal pacemaker is ____________________.

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15. The operating principle underlying the electromagnetic flow meters is based on 2

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_____________________.

16. According to the 5 letter pacemaker identification terminology, what does the second

letter indicate.

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17. The first implantable cardiac pacemaker used _______________ cells. 1

18. When does the demand unit of the pacemaker function? 1

19. Asynchronous contraction of the heart muscles is known as____________ 1

20. Which type of current waveform is more effective, monophasic or biphasic.Why? 1

21. Type of pacemaker used for patients who generally have sinus rhythm with occasion

heart block is _________________

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22. Which type of electrodes are required by automatic or advisory external defibrillators 1

23. The two types of ultrasonic blood flow meters are ______________________ and

_________________________.

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24. Give an example of commercially available defibrillator. 1

25. The blood velocity is measured by using the basic relationship

_________________.