Pulse oximeters are devices usually placed on the tip of the finger and used to measure oxygen ... accuracy of the devices’ readings are skin color, nail polish, ambient lighting, dyes or ...

For example: During sports activities, a basketball or baseball may strike the tip of an outstretched ... The injured finger may appear a pale color. The dislocation may cause a break in the ...

The nails help protect the tips of the fingers and toes from injury and infection. They also help with fine motor actions such as gripping and separating. Changes in nail color, shape, or texture ...