 
			 
			MCQOPTIONS
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				This section includes 18 Mcqs, each offering curated multiple-choice questions to sharpen your Biomedical Instrumentation knowledge and support exam preparation. Choose a topic below to get started.
| 1. | ______ is very useful for patients having respiratory or cardiac problems because of their simplicity of use and the ability to provide continuous and immediate oxygen saturation levels. | 
| A. | Pulse Oximeter | 
| B. | Ear Oximeter | 
| C. | Skin Reflactance Oximeter | 
| D. | Intravascular Oximeter | 
| Answer» B. Ear Oximeter | |
| 2. | Portable pulse oximeters are useful for ______ whose oxygen levels may decrease at high altitude. | 
| A. | Athlete | 
| B. | Swimmer | 
| C. | Mountain climber | 
| D. | Fisher | 
| Answer» D. Fisher | |
| 3. | A pulse oximeter is useful in any setting where a patients oxygenation is unstable. | 
| A. | True | 
| B. | False | 
| Answer» B. False | |
| 4. | What is the wavelength of infrared LED in pulse oximetry? | 
| A. | 660 nm | 
| B. | 740 nm | 
| C. | 905 nm | 
| D. | 950 nm | 
| Answer» D. 950 nm | |
| 5. | What is the wavelength of the red LED in pulse oximetry? | 
| A. | 660 nm | 
| B. | 740 nm | 
| C. | 905 nm | 
| D. | 950 nm | 
| Answer» B. 740 nm | |
| 6. | What is used as a photodetector in pulse oximetry? | 
| A. | Phototransistor | 
| B. | Solar cell | 
| C. | Photodiode | 
| D. | Photographic plates | 
| Answer» D. Photographic plates | |
| 7. | A = ɛDC, where ɛ is _______ | 
| A. | Incident light Intensity | 
| B. | Transmitted light Intensity | 
| C. | Extinction coefficient | 
| D. | Concentration | 
| Answer» D. Concentration | |
| 8. | _____ is non-invasive method allowing the monitoring of the saturation of a patient’s hemoglobin. | 
| A. | Ear Oximetry | 
| B. | Pulse Oximetry | 
| C. | Skin-Reflectance Oximetry | 
| D. | Intravascular Oximetry | 
| Answer» C. Skin-Reflectance Oximetry | |
| 9. | _______IS_VERY_USEFUL_FOR_PATIENTS_HAVING_RESPIRATORY_OR_CARDIAC_PROBLEMSBECAUSE_OF_THEIR_SIMPLICITY_OF_USE_AND_THE_ABILITY_TO_PROVIDE_CONTINUOS_AND_IMMEDIATE_OXYGEN_SATURATION_LEVELS.?$ | 
| A. | Pulse Oximeter | 
| B. | Ear Oximeter | 
| C. | Skin Reflactance Oximeter | 
| D. | Intravascular Oximeter | 
| Answer» B. Ear Oximeter | |
| 10. | Portable pulse oximeters are useful for ______ whose oxygen levels may decrease at high altitude? | 
| A. | Athlete | 
| B. | Swimmer | 
| C. | Mountain climber | 
| D. | Fisher | 
| Answer» D. Fisher | |
| 11. | What is wavelength of infrared LED in pulse oximetry? | 
| A. | 660 nm | 
| B. | 740 nm | 
| C. | 905 nm | 
| D. | 950 nm | 
| Answer» D. 950 nm | |
| 12. | A pulse oximeter is useful in any setting where a patients oxygenation is unstable. | 
| A. | True | 
| B. | False | 
| Answer» B. False | |
| 13. | What is wavelength of red LED in pulse oximetry? | 
| A. | 660 nm | 
| B. | 740 nm | 
| C. | 905 nm | 
| D. | 950 nm | 
| Answer» B. 740 nm | |
| 14. | What is used as photodetector in pulse oximetry? | 
| A. | Phototransistor | 
| B. | Solar cell | 
| C. | Photodiode | 
| D. | Photographic plates | 
| Answer» D. Photographic plates | |
| 15. | A pulse oximeter shows the percentage of venous hemoglobin in the oxyhemoglobin (HbO2) and hemoglobin (Hb). | 
| A. | True | 
| B. | False | 
| Answer» C. | |
| 16. | A= …õDC, where …õ is _______$ | 
| A. | Incident light Intensity | 
| B. | Transmitted light Intensity | 
| C. | Extinction coefficient | 
| D. | Concentration | 
| Answer» D. Concentration | |
| 17. | A = log I0/I,where I0 is_____ | 
| A. | Incident light Intensity | 
| B. | Transmitted light Intensity | 
| C. | Extinction coefficient | 
| D. | Concentration | 
| Answer» B. Transmitted light Intensity | |
| 18. | _____ is non-invasive method allowing the monitoring of the saturation of a patient’s hemoglobin. | 
| A. | Ear Oximetry | 
| B. | Pulse Oximetry | 
| C. | Skin-Reflectance Oximetry | 
| D. | Inntravascular Oximetry | 
| Answer» C. Skin-Reflectance Oximetry | |