NCT04771663

Variability of SpO2 Measurements Depending on the Choice of Finger for Sensor Placement

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 24 (actual)
• Sponsor: Czech Technical University in Prague · Academic / Other
• Sex: All
• Age: 18 Years – 60 Years
• Healthy volunteers: Accepted

Summary

The aim of the project is to experimentally determine the effect of the choice of finger for the placement of a pulse oximeter sensor on the results of measuring peripheral blood oxygen saturation (SpO2) in a healthy person with short-term hypoxia and hypercapnia.

Detailed description

The aim of the project is to experimentally determine the effect of the choice of finger for the placement of a pulse oximeter sensor on the results of measuring peripheral blood oxygen saturation (SpO2) in a healthy person with short-term hypoxia and hypercapnia. This is an intervention prospective study that will take place at the Faculty of Biomedical Engineering, especially on FBMI students. The experiment consists of two phases, in which in the first phase, the volunteers will inhale the hypoxic mixture for five minutes after the stabilization phase. In the second phase, volunteers inhale a hypoxic and hypercapnic mixture. During the experiment, non-invasive SpO2 measurements will be performed continuously on individual fingers of both volunteer hands.

Conditions

• Hypoxia
• Hypercapnia

Interventions

Type	Name	Description
OTHER	Breathing a mixture of O2, N2 and CO2 and monitoring SpO2 on each finger	The experiment consists of two separate phases. In one phase, the volunteers inhale one of the mixtures for five minutes. After enough time of recovery, the volunteers undergo the other phase in which they inhale the other mixture of gases. Both phases of the measurement will begin with a two-minute stabilization phase, during which the physiological values of the volunteer will be checked. During the experiment, non-invasive SpO2 measurements will be performed continuously on the individual fingers of both volunteer hands throughout the experiment.

Timeline

• Start date: 2020-11-05
• Primary completion: 2021-02-15
• Completion: 2025-10-15
• First posted: 2021-02-25
• Last updated: 2026-03-11

Locations

1 site across 1 country: Czechia