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Biomedical Instrumentation Practice Test: Biomedical Recorders
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Avg score: 76% Most missed: “Blood in ___________ must be made similar to arterial Blood in composition.”
Biomedical recorders are used in biomedical instrumentation, which is the engineering of devices and mechanics that measure, evaluate, and treat biological systems. Biomedical instruments monitor and analyze human body parameters, such as electrophysiological signals. These instruments are used in healthcare settings for diagnosing diseases, monitoring patient vital signs, delivering therapies, and conducting research.  Recording systems are of two types: analog recorders and digital recorders. Analog recorders can be further classified as graphic recorders and oscillographic. A graphic... Show more
Biomedical Instrumentation Practice Test: Biomedical Recorders
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25 Questions

1. What is used in modern instrument for intravascular oximetry?
2. The blood is a poor conductor of electricity.
3. Oxygen saturation is estimated by _________
4. Merrick and Hayes (1976) describe details of a __________ oximeter which enables the measurement of oxygen saturation of the blood.
5. Uremia is the clinical state resulting from _____________
6. Ear oximeter instrument is based on Beer-Lambert law.
7. When will be R-R interval declared premature?
8. How much quantity of oxygen bound with haemoglobin in the normal arterial blood?
9. In the whole body, there are about 25 billion erythrocytes and they are constantly being destroyed and replaced at a rate of about 9000 million per hour.
10. Ear oximeter instrument is based on Beer- Lambert law.
11. What gets affected by lower saturation?
12. Which of the following blood constituent is in the form of a bi-concave disc?
13. How is the blood flow in arteries and arterioles?
14. Who has poorer signal-to-noise ratio?
15. Which is the final stage in arrhythmia analysis?
16. Normal mean red cell volume is _____________
17. The percentage of the total specimen volume occupied by the platelets is called ____________
18. By keeping the ear warm, maximum vasodilatation is achieved.
19. Which of the following instrument is used to measure the oxygen saturation level of blood in localized areas of oxygen?
20. Which techniques are used in a new algorithm proposed by Jen and Hwang to obtain the long term ECG signal feature and extract the meaningful information hiding in the QRS complex?
21. What does red blood cells contain for combining with a large volume of oxygen?
22. The percentage of cells in the blood is called _____________
23. How many LED’s are used in Pulse oximeter probe?
24. Who brought out the difficulties in the extraction of useful information from backscattered light intensity from human tissue?
25. The reflected light from the skin at wavelengths of 665nm(red) and 935nm(infrared) is detected by ______________