Senior woman using pulse oximeter and smart phone, measuring oxygen saturation. — Stock photos

"Senior woman using pulse oximeter and smart phone, measuring oxygen saturation." is an authentic stock image by ScienceRF. It’s available in the following resolutions: 1600 x 1067px, 2600 x 1733px, 7241 x 4827px. The minimum price for an image is 49$. Image in the highest quality is 7241 x 4827px, 300 dpi, and costs 449$.