Note that melissa’s exam indicates a pulse ox value of 91%. what is this value and how can it be used to monitor overall health?

This value is in the range of people who have a mild respiratory disease and it is most likely that Melissa does have a respiratory disease. Ox values can help determine overall health by seeing at what value you breath 90% below is when you need supplementary oxygen and regular value is 94%-99%.

A. in my school we dont  use fractions at all for midpoint.