The Accuracy of Smartphone Pulse Oximetry in Patients Visiting an Outpatient Pulmonary Function Lab for a 6-Minute Walk Test

The Accuracy of Smartphone Pulse Oximetry in Patients Visiting an Outpatient Pulmonary Function Lab for a 6-Minute Walk Test

The primary aim of this research is to determine the accuracy of smartphone pulse oximeters in detecting blood oxygen saturations, episodes of desaturations, and heart rate by comparing results to a Masimo© hospital-grade pulse oximeter.

Inclusion Criteria:

• Ambulatory
• 18 years and older
• Visiting the pulmonary function laboratory at Rush University Medical Center for a 6-minute walk test that agree to participate.

Exclusion Criteria:

• Under the age of 18 years
• High blood pressure above 180/90 mm Hg or pressure below 70/50 mm Hg
• Dizzy, lightheaded or have severe headaches at time of enrollment
• SpO2 at or below 85% on supplemental oxygen
• On oxygen greater than 4 liters per minute
• Gait issues that may result in a fall or patient walks with a walker and did not bring the device to this visit