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Related Concept Videos

Pulse Oximetry01:24

Pulse Oximetry

1.5K
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...
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Guidelines For Measuring Vital Signs01:19

Guidelines For Measuring Vital Signs

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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 rhythm01:30

Pulse rhythm

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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...
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Special considerations while measuring oxygen saturation01:19

Special considerations while measuring oxygen saturation

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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
Special considerations while measuring pulse01:13

Special considerations while measuring pulse

1.0K
Assessing a patient's pulse is a fundamental skill in healthcare, but certain situations require special attention:
1.0K
Assessment of apical radial pulse01:25

Assessment of apical radial pulse

1.5K
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
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Updated: Mar 11, 2026

Non-Invasive Monitoring of Microvascular Oxygenation and Reactive Hyperemia using Hybrid, Near-Infrared Diffuse Optical Spectroscopy for Critical Care
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Cardiac Rhythm Device Threshold Testing Via Pulse Oxymetry.

Vladimir Fridman1, Cesare Saponieri1, Nabil El Sherif1

  • 1Cardiac Electrophysiology Services, Department of Medicine, New York Methodist Hospital, Brooklyn, NY.

Journal of Atrial Fibrillation
|December 3, 2016
PubMed
Summary
This summary is machine-generated.

Pulse oximetry offers a new, accurate method for cardiac rhythm device threshold testing. This approach simplifies the process, potentially complementing traditional electrocardiogram (ECG) methods for improved patient care.

Keywords:
Cardiac RhythmOximetryPhotoplethysmogramPlethysmography

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Area of Science:

  • Cardiovascular Medicine
  • Biomedical Engineering
  • Medical Device Technology

Background:

  • Threshold testing is crucial for cardiac rhythm device (CRD) function monitoring.
  • Current ECG-lead based testing methods are time-consuming and burdensome for patients.

Purpose of the Study:

  • To introduce and evaluate a novel pulse oximetry-based method for CRD threshold testing.
  • To compare the accuracy and reliability of pulse oximetry testing against standard electrogram (EGM) methods.

Main Methods:

  • Twenty patients with diverse CRDs and pacing modes were enrolled.
  • Simultaneous atrial and ventricular threshold testing was performed using both standard EGM and the new pulse oximetry methods.
  • Threshold values determined by both methods were compared.

Main Results:

  • Ventricular thresholds matched between methods in 75% of tests.
  • Atrial thresholds matched in 58% of tests.
  • Discrepancies in remaining tests were minimal, varying by only +0.25 V.

Conclusions:

  • Pulse oximetry-based threshold testing is an accurate and reliable alternative.
  • This method offers a simpler and potentially faster approach to CRD testing.
  • Pulse oximetry may serve as a valuable complementary tool to traditional EGM testing.