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Biomedical Instrumentation MCQs - Medical Diagnosis with Chemical Tests

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1. Which of the following is not the electrolyte?




2. The blood pressure within the glumerular capillaries is _________ of mercury.




3. In the sampling control, one complete rotation of the plate thus presents _______




4. In the sampler, the range of the sample size is from _______




5. Which cams are used in the earlier modules of auto-analyzers to initiate and control sample aspiration and wash cycles?




6. The function of the _________ is to continuously and simultaneously push fluids, air and gases through the analytical chain.




7. In the proportioning pump, two speed pump has a non-synchronous _____ rpm motor.




8. ________ is not part of the manifold.




9. The material used in limb surface electrode is ___________




10. Welsh cup electrodes have __________




11. In floating electrodes metal electrode does not make direct contact with the skin.




12. The main design feature of pregelled disposable electrodes which helps to reduce the possibility of artefacts, drift and baseline wandering is _____________




13. Recording electrical activities associated with heart is known as ____________




14. Which of the following is considered to be the primary pacemaker of the heart?




15. Atrio ventricular node is located at __________




16. Buffer amplifier converts ____________




17. Which of the following is a wireless ECG acquiring system?




18. Before placing the electrodes the skin should be __________




19. _____________ instrument is used for recording the electrical activity of the brain.




20. EEG electrodes are smaller in size than ECG electrodes.




21. Which of the following is the superimposed wave of neuron potentials operating in a non-synchronized manner in a physical sense?




22. ______________ material is used to improve electrical contact in electrodes with the skin.




23. Which among the following electrode gives high skin impedance as compared to ECG?




24. Which of the following component is generally designed to have a very high value of input impedance to take care of high electrode impedance?




25. What is the recording called in which voltage difference between an active electrode on scalp with respect to reference electrode at ear lobe or any other part of the body is recorded?




26. Which of the following is employed for a bipolar recording done?




27. EEG signals picked up by surface electrodes are usually larger as compared to ECG.




28. A pattern of electrodes on the head and the channels they are connected to is called a montage. Montages are always ___________




29. Reference electrode for recording EEG is placed on __________




30. The typical value of calibration signal is ________




31. Preamplifiers used in electroencephalograph have low gain and high noise characteristics for EEG.




32. At what frequency is the notch filter in EEG machines sharply tuned to eliminate mains frequency interference?




33. ______________ is typical frequency range of standard EEG machines.




34. Which of the following instrument is used for recording the chest-wall movements over the apex of heart?




35. The transducer required for recording these movements in apexcardiograph is similar to the electrocardiograph.




36. Which of the following instrument is used for recording the movements imparted to the body with each beat of the heart cycle?




37. What is mounted on the table to convert the movements into corresponding electrical signals in BCG?




38. ________________ is the recording of the bio-potentials generated by the movement of eye ball.




39. What is used to pick EOG potentials?




40. What is the frequency range of Chest-wall movements?




41. Which of the following instrument is used for recording the change in potential when light falls on the eye?




42. One of the electrode is mounted on the contact lens and the other is placed to the skin adjacent to the outer cornea of the eye.




43. Which of the following is useful in the diagnosis of the enlargement of the heart chambers and some type of valvular disorders?




44. Blood flow detectors based on Doppler shift start detecting foetal pulses as early as in which week of pregnancy?




45. When it is possible to detect multiple pregnancies?




46. Which of the following is the most reliable method for detecting FHR pattern?




47. Signal processing for FHR determination can be based either on detecting the foetal heart valve motion or on detecting the heart wall motion in Abdominal foetal electrocardiogram technique.




48. What is maximum ultrasound intensity of narrow beam transducer?




49. What is the diameter of a narrow beam transducer?




50. What is used to detect foetal heart movements in broad beam transducer?