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Related Concept Videos

Pulse Oximetry01:24

Pulse Oximetry

313
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...
313
Guidelines For Measuring Vital Signs01:19

Guidelines For Measuring Vital Signs

1.6K
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.
1.6K
Assessment of Diffusion and Perfusion01:17

Assessment of Diffusion and Perfusion

945
Understanding and evaluating diffusion and perfusion is critical in assessing a patient's respiratory and circulatory health. These processes play key roles in maintaining the body's internal environment, ensuring that tissues receive adequate oxygen while waste products are efficiently removed.
The Role of Diffusion in Respiration
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. In the respiratory system, this...
945
Special considerations while measuring oxygen saturation01:19

Special considerations while measuring oxygen saturation

551
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...
551
Pulse01:16

Pulse

473
When the heart pumps blood out, arterial elastic fibers play a crucial role in sustaining a high-pressure gradient. They expand to accommodate the received blood and then recoil - a process known as the pulse that can be either manually palpated or electronically quantified. Despite a reduction in its effect with increased distance from the heart, elements of the pulse's systolic and diastolic components persist, observable even at the arteriole level.
The pulse serves as a clinical...
473
Pulse rhythm01:30

Pulse rhythm

771
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...
771

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Related Experiment Video

Updated: Jun 13, 2025

A Model to Simulate Clinically Relevant Hypoxia in Humans
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Open Access Data Repository and Common Data Model for Pulse Oximeter Performance Data.

Nicholas Fong1,2,3, Michael S Lipnick1,2,4, Ella Behnke2

  • 1Department of Anesthesia and Perioperative Care, Zuckerberg San Francisco General Hospital and Trauma Center, University of California San Francisco.

Medrxiv : the Preprint Server for Health Sciences
|September 10, 2024
PubMed
Summary
This summary is machine-generated.

The OpenOximetry Repository offers a structured database for pulse oximetry data, including SpO2 and PPG, to improve device accuracy across diverse populations. This resource supports research into pulse oximeter performance and clinical applications.

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Area of Science:

  • Biomedical Engineering
  • Medical Informatics
  • Physiological Measurement

Background:

  • Pulse oximetry is crucial for monitoring oxygen saturation.
  • Existing datasets for pulse oximetry research are fragmented.
  • Variability in pulse oximeter performance across different individuals necessitates standardized data collection.

Purpose of the Study:

  • To establish a centralized, structured database for pulse oximetry data.
  • To create a common data model and standardized protocols for pulse oximetry research.
  • To facilitate research on pulse oximeter performance across diverse human characteristics.

Main Methods:

  • Collected clinical and laboratory pulse oximetry data, including SpO2, SaO2, and photoplethysmography (PPG) signals.
  • Incorporated metadata such as skin color, finger diameter, vital signs, and arterial blood gas parameters.
  • Utilized prospective data collection and standardized protocols for data archival and interpretation.

Main Results:

  • The OpenOximetry Repository is established as a structured database.
  • The repository supports diverse data types, including processed and unprocessed PPG.
  • Initial data release includes controlled lab desaturation studies (CLDS).

Conclusions:

  • The OpenOximetry Repository provides a valuable resource for pulse oximetry research.
  • Standardized data and protocols will enhance the reliability of pulse oximeter performance studies.
  • The repository aims to promote the development and use of accurate pulse oximeters.