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Related Concept Videos

Special considerations while measuring oxygen saturation01:19

Special considerations while measuring oxygen saturation

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 important. 
Assessment of Ventilation I: Respiratory Rate01:20

Assessment of Ventilation I: Respiratory Rate

Assessment of Ventilation
A Ventilation assessment is critical for monitoring a patient's health status. Respiration, one of the most accessible vital signs, provides insights into the function of numerous body systems and can indicate serious health issues, such as brainstem injuries from head trauma.
Critical Guidelines for Assessing Ventilation:
Respiratory Volumes and Capacities I01:26

Respiratory Volumes and Capacities I

Assessing the respiratory rate and rhythm for a complete minute is crucial for evaluating the breathing pattern. Even a minor increase in the patient's average respiratory rate, by as little as three to five breaths per minute, is an early and vital indicator of respiratory distress. Patients with a respiratory rate exceeding twenty-four breaths per minute require close monitoring to determine the physiological alterations. This careful observation is essential for prompt recognition and...
Assessment of Respiration01:23

Assessment of Respiration

The respiratory system's basic structures and primary functions lay the foundation for nurses' comprehensive respiratory assessments. This assessment includes subjective and objective data to gauge the patient's respiratory health.
Subjective Assessment: Nurses interview the patient to gather information directly during the subjective assessment. It includes questions about the individual's medical history, medications, and symptoms, focusing on past respiratory conditions like asthma or COPD,...
Pulse Oximetry01:24

Pulse Oximetry

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...
Neural Control of Respiration01:18

Neural Control of Respiration

The neural regulation of respiration is a meticulously coordinated process primarily controlled by the respiratory centers located within the brainstem. These centers, composed of specialized neurons, transmit nerve impulses that control the contraction and relaxation of our respiratory muscles.
Respiratory Centers in the Brainstem
Two primary areas comprise the respiratory center: the medullary respiratory center in the medulla oblongata and the pontine respiratory group in the pons. The...

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Related Experiment Video

Updated: Jun 6, 2026

Investigation into Deep Breathing through Measurement of Ventilatory Parameters and Observation of Breathing Patterns
08:34

Investigation into Deep Breathing through Measurement of Ventilatory Parameters and Observation of Breathing Patterns

Published on: September 16, 2019

Real time breathing rate estimation from a non contact biosensor.

Redmond B Shouldice1, Conor Heneghan, Gabor Petres

  • 1BiancaMed, NovaUCD, University College Dublin, 4, Ireland. redmond.shouldice@biancamed.com

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
|November 25, 2010
PubMed
Summary
This summary is machine-generated.

This study presents an automated, real-time method for detecting human breathing rate using a non-contact biosensor. The approach achieves high accuracy, with over 99% of breaths correctly scored within 1 breath per minute compared to expert analysis.

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Area of Science:

  • Biomedical Engineering
  • Physiological Monitoring
  • Signal Processing

Background:

  • Accurate and non-invasive monitoring of human breathing rate is crucial for various medical and wellness applications.
  • Existing methods may require physical contact or have high computational demands, limiting their use in real-time, low-power devices.

Purpose of the Study:

  • To develop and validate an automated, real-time method for detecting human breathing rate using a non-contact biosensor.
  • To assess the method's computational efficiency for microcontroller implementation.
  • To compare the accuracy of the developed method against expert-scored respiratory inductance plethysmography.

Main Methods:

  • Utilized a non-contact biosensor to capture physiological data.
  • Implemented time and frequency domain analysis to classify data segments into movement, breathing, or absent states.
  • Calculated breathing rate estimates from the classified data.
  • Validated the method against expert-scored respiratory inductance plethysmography (RIP).

Main Results:

  • The automated method demonstrated low computational and RAM requirements, suitable for microcontrollers.
  • On a 1-second basis, 96% of breaths were within 1 breath per minute (BPM) of expert RIP scores.
  • On a 1-second basis, 99% of breaths were within 2 BPM of expert RIP scores.
  • When averaged over 30 seconds, over 99% of breaths were within 1 BPM of the expert score.

Conclusions:

  • The developed automated real-time method accurately detects human breathing rate from non-contact biosensor data.
  • The method's low resource requirements enable practical implementation in low-power, real-time monitoring systems.
  • The high agreement with expert scoring validates its potential for reliable respiratory monitoring.