So far in this series (view Part One here; Part Two here), we've given an overview of vital signs. In this next segment, we'll go into what they represent in terms of patient physiology and clinical significance. Watch the video below or keep reading to dive in.

This is the second installation of our 3-part overview of vital signs in pre-hospital settings. In this portion we will be talking about pulse oximetry, blood glucometry and the mental assessment scale AVPU. To review the content in the first installment on vitals check out our previous blog post: Learning and Obtaining Vitals Pt. 1 of 3. Watch our video below or keep reading for more.