ENGI1102_PracticeProblem_Lecture_

ENGI1102_PracticeProblem_Lecture_ - Practice Problem:...

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Practice Problem: Breathing Monitor Aaron M. Kyle, Ph.D. ENG 1102 – Biomedical Engineering 2/7/2012
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Vital Signs Measurement: HR Indicative of proper cardiac function, i.e., the heart is beating Typical methods: Pulse by palpation ECG Arterial pressure Optical methods Heart sounds
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Vital Signs Measurement: HR Using pulse oximetry to detect HR Light transmitted through vascular tissue Increase in flow, less transmission to photodetector (PD) PD signal filtered, amplified, and compared before digitization
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Vital Signs Measurement: BP Force of blood pumping and vascular health Indirect measurement, via the force that blood exerts on the vascular wall Components of BP measurement: Systolic: Pressure during cardiac contraction Diastolic: Pressure during cardiac relaxation Pulse: Systolic – Diastolic pressure
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Vital Signs Measurement: BP BP measurement methods: Korotkoff sounds with BP cuff and stethoscope Oscillometric method Direct arterial measurement Pulse wave transit time
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ENGI1102_PracticeProblem_Lecture_ - Practice Problem:...

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