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Related Concept Videos

Pulse Oximetry01:24

Pulse Oximetry

1.7K
Pulse oximetry, or SpO2, is a non-invasive method for continuously monitoring arterial oxygen saturation (SaO2). This procedure involves attaching a probe or sensor to the patient's fingertip, forehead, earlobe, or nose bridge. The sensor works by detecting changes in oxygen saturation levels through light signals generated by the oximeter and reflected by the pulsing blood under the probe.
Purpose
Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
1.7K
Guidelines For Measuring Vital Signs01:19

Guidelines For Measuring Vital Signs

3.4K
Following these guidelines can help nurses accurately measure vital signs, assess changes in patient conditions, and provide timely treatment when necessary. Adhering closely to the guidelines ensures the accuracy and reliability of the results.
Before taking a patient's vital signs, a nurse would consider and assess the patient's comfort level and ensure appropriate equipment is available.
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Pulse Assessment Sites01:11

Pulse Assessment Sites

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Pulse assessment sites are crucial in evaluating a patient's cardiovascular health. By assessing the pulsations of arteries at specific anatomical locations, healthcare professionals can gather valuable information about blood flow, heart rate, and peripheral circulation. Understanding these pulse assessment sites is essential for conducting comprehensive cardiovascular evaluations and monitoring patients' overall health. These sites are strategically chosen due to the accessibility and...
3.5K
Pulse rhythm01:30

Pulse rhythm

1.7K
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
1.7K
Special considerations while measuring oxygen saturation01:19

Special considerations while measuring oxygen saturation

1.1K
Assessing respiratory rate concurrently with pulse measurement is fundamental to patient care, providing valuable insights into the patient's respiratory function. The normal breathing rate for an adult usually falls within a normal range of 12 to 20 breaths per minute. Abnormal respiratory rates can signal underlying health conditions or the need for immediate intervention.
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...
1.1K
Assessment of apical radial pulse01:25

Assessment of apical radial pulse

1.6K
Apical-Radial (A-R) Pulse Assessment
The A-R pulse assessment involves simultaneous evaluation of the apical and radial pulses. When the apical and radial pulse rates vary, this assessment helps identify a pulse deficit.
Pre-Procedural Preparation
1.6K

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Related Experiment Video

Updated: Apr 18, 2026

Non-Invasive Monitoring of Microvascular Oxygenation and Reactive Hyperemia using Hybrid, Near-Infrared Diffuse Optical Spectroscopy for Critical Care
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Non-Invasive Monitoring of Microvascular Oxygenation and Reactive Hyperemia using Hybrid, Near-Infrared Diffuse Optical Spectroscopy for Critical Care

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Implantable pulse oximetry on subcutaneous tissue.

Michael Theodor, Dominic Ruh, Sivaraman Subramanian

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |January 9, 2015
    PubMed
    Summary

    This study introduces a novel implantable sensor for continuous blood oxygen saturation monitoring in mobile patients. This breakthrough enables reliable home monitoring for cardiovascular disease patients.

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    Area of Science:

    • Biomedical Engineering
    • Medical Devices
    • Cardiovascular Monitoring

    Background:

    • Continuous blood oxygen saturation monitoring is crucial for clinical care but unavailable for mobile patients.
    • Current methods are inadequate for long-term, in-situ monitoring, especially for high-risk cardiovascular patients.
    • Existing implantable sensors lack the capability for reliable extravascular blood oxygen saturation measurement.

    Purpose of the Study:

    • To present a minimally invasive, implantable patient monitor for continuous blood oxygen saturation measurement.
    • To demonstrate the feasibility of extravascular photoplethysmographic signal acquisition for vital sign monitoring.
    • To evaluate the performance of an implantable sensor for blood oxygen saturation in vivo.

    Main Methods:

    • Development of a minimally invasive, implantable multimodal sensor capable of subcutaneous vital sign monitoring.
    • In vivo implantation of the sensor in a sheep model for a two-week study period.
    • Acquisition and analysis of high-quality in vivo photoplethysmographic signals directly on subcutaneous muscle tissue.

    Main Results:

    • High-quality in vivo photoplethysmographic signals were recorded from subcutaneous muscle tissue, despite weaker amplitudes.
    • The study successfully demonstrated the measurement of blood oxygen saturation using an implantable, extravascular sensor for the first time.
    • The implanted sensor showed no complications over the two-week observation period.

    Conclusions:

    • An implantable, extravascular sensor can reliably measure blood oxygen saturation.
    • This technology offers new possibilities for continuous home monitoring of patients with cardiovascular diseases.
    • The developed sensor paves the way for improved long-term management of patients requiring vital sign surveillance.