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Biomedical Instrumentation Practice Test: Foetal Monitoring Instruments
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Fetal monitoring devices are used to listen to or record a fetus's heartbeat through the mother's abdomen.  The most common type of fetal monitoring is external electronic fetal monitoring (EFM).  Here are some types of fetal monitoring instruments: Doppler ultrasound device: A handheld electronic device that's often used during prenatal visits and sometimes during labor. Fetoscope: A type of stethoscope that's the most basic type of external monitor. Electronic fetal monitoring: A procedure that uses instruments to continuously record the fetus's heartbeat and the mother's uterine... Show more
Biomedical Instrumentation Practice Test: Foetal Monitoring Instruments
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25 Questions

1. The preamplifier is incorporated in the transducer housing to maximize interference signals being picked up.
2. Crystal microphone is used for picking _______ signals.
3. A typical reflection grating may have 1200 grooves/mm, which means the grooves are spaced at about _______ intervals.
4. The absorption type optical filter usually consists of coloured glasses, gelatin etc. and solutions of the coloured substances.
5. Most modern instruments now use a _______ as a dispersing element in the monochromator.
6. Which of the following type of systems are not available for ambulatory ECG monitoring?
7. If absorbance is plotted graphically against concentration, the graph is _________
8. Modern instruments use ________ light source in calorimeters and spectrophotmetry.
9. Ambulatory monitoring of ECG is called ____________
10. Which of the following is not an arrhythmic condition?
11. What are the wavelengths of quartz and fused silica respectively in a hydrogen discharge lamp?
12. Bandpass filter used in foetal phonocardiogram rejects all frequencies outside the ________ Hz range.
13. The sample holder is generally inserted somewhere in the interval between the ______and _______
14. Which technique is used to derive an integrated rate of the foetus heart from blood flow signals and to display it on a suitable display system?
15. What is the most common and convenient source of light?
16. In sample holders, for such applications, a 50 cm path-length with about a ________ volume cell is employed.
17. Who provides an excellent review of ambulatory cardiac event recorders?
18. _______ are optical systems, which provide better isolation of spectral energy than the optical filters.
19. The monitor automatically transmits recorded data transtelephonically to a central monitoring station for subsequent analysis when an arrhythmia is detected by an arrhythmia algorithm.
20. How many sounds are produced from the normal foetal heart action?
21. The ratio of the radiant power transmitted by a sample to the radiant power incident on the sample is known as ______
22. What is used to detect heart frequency in foetal phonocardiograph?
23. With the use of _______ chromatic aberrations and other imperfections of the lenses are minimized.
24. If the period duration is lesser than 400 ms, the one-shot will deliver a pulse.
25. Which system may include lenses, mirrors, slits, diaphragm etc?