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I have increasingly witnessed clinicians obtaining S(pO2) readings by placing the finger clip sensor on the patient's ear when an S(pO2) reading cannot be obtained from a finger. Objective: Determine if reliable S(pO2) readings can be obtained from a finger clip sensor placed on the ear.
- Jeffrey M Haynes
- 2007
- Methods
- Results
- Discussion
- Limitations
- Conclusion
- Recommendations
- Key Points
- CPD Reflective Questions
This was a prospective, single-centre, cohort study performed at University Hospitals Coventry and Warwickshire (UHCW) NHS Trust, a large teaching hospital serving a population of approximately 1 million. The study protocol was reviewed by the hospitals research and development department; ethical approval was obtained (Study Ref: GF0291). From Sep...
Forty-six (28 male) consecutive patients admitted with AHRF requiring NIV were included in the data analysis. The majority (83%) were admitted with acute exacerbations of chronic obstructive pulmonary disease (COPD), with the remaining 17% presenting with AHRF due to obesity hypoventilation or chest-wall deformity. The baseline characteristics of t...
The results of the study showed that SaO2 measured via ABG sampling does not differ significantly from SpO2 measured via the finger using a finger probe oximeter. The mean difference of -0.66% is within the 2% error described by manufacturers (Nitzan, 2014). However, the data have demonstrated that it is not appropriate to put a finger probe oximet...
Quality assurance of saturation measurements was achieved by visual inspection of the photoplethysmographic waveform, however the pulse oximeters used in this study were not calibrated before use. There is acknowledgement that as many as 30% of NHS oximeters fail to perform to manufacturer specifications (Milner and Mathews, 2012). Inaccuracy of a ...
Previous studies have identified that placement of a finger probe on the ear inaccurately represents arterial saturation in stable patients with chronic respiratory disease attending outpatient clinics. This article further contributes to the evidence base demonstrating that placement of finger oximetry probes on the ear in acutely unwell patients ...
Measurements of SpO2 should always be checked for accuracy by visually assessing the photoplethysmographic waveform on the oximetry device using a probe appropriate to the anatomical site. Reduced peripheral circulation identified by poor waveform strength should be recognised as a measurement limitation that will lead to inaccurate SpO2readings. I...
Oxygen saturation measurements are influenced by external factors, including site placementFinger probe placement on the ear is used in an attempt to improve signal accuracy. Finger probe placement on the pinna of the ear leads to artificially increased saturation readings, which become...In hypoxic patients, blood gas measurements are more accurate than saturation readings and should be used to inform subsequent treatment decisionsReflect on the key learning points of this article and how they may change your future clinical practiceIn addition to the clinical knowledge gained from reading this article, what other information do you need in order to extend your own professional development in the topic areaReflect on how the clinical practices discussed in this article relate to the Nursing and Midwifery Code of practiceCan you relate any of the key learning points of the article to your own areas of clinical practice? If so, how will you use your new knowledge to ensure the delivery of safe patient care?Jun 10, 2021 · Pulse oximetry is widely used to assess oxygen saturation (SpO<sub>2</sub>) in order to guide patient care and monitor the response to treatment. However, inappropriate oximeter probe placement has been shown to affect the measured oximetry values in healthy and normoxic outpatients. This study eval …
- Joanna Shakespeare, Edward Parkes, Catherine Gilsenan, Asad Ali
- 2021
Introduction Clinicians often obtain peripheral saturation (SpO2) readings by placing a finger probe sensor on the patient’s earlobe when a reading cannot be obtained from the finger. The accuracy of this method is unknown, and is not recommended by the manufacturers of oximeters. Objectives To assess the accuracy of oxygen saturations measured by a pulse oximeter finger probe on earlobes ...
- P Malhotra, L Shaw, J Barnett, E Hayter, N Hill, P Stockton
- 2018
Sep 3, 2024 · Pulse oximetry is a noninvasive test that measures the oxygen saturation level of your blood. It can rapidly detect even small changes in oxygen levels. These levels show how efficiently blood is ...
Dec 30, 2022 · Occult hypoxemia is when the estimated blood gas value measured by a pulse oximeter reads higher than the arterial blood gas measurement of oxygen saturation. Reports have also indicated that pulse oximeter readings may be less accurate as true oxygen saturation decreases. Regulated pulse oximeters typically give readings within 2% to 4% of ABG ...
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Pulse oximetry is a useful tool in the evaluation of a patient's oxygenation status and may be used routinely in many areas of clinical practice. Through use of pulse oximetry, oxygenation can be monitored easily and noninvasively. Advances in microprocessor technology, along with improvements in light-emitting diodes and photoelectric sensors ...
