Highlights The evaluated method showed moderate reproducibility when compared to the gold standard practice. This new method had a high specificity and a low sensitivity. The observed high range of SpO2 levels between the methods could lead to a wrong patient referral. The use of telemedicine to assess oxygen saturation in patient with dyspnea is a viable resource, although requiring improvement.   ABSTRACT Objective To calculate the positive likelihood ratio to determine whether telemedicine is able to optimize referral to […]