What I see with newer medics is that they get focused on “treating the monitor” and not treating the patient.
There are lots of ways to determine profusion without having to look at some piece of equipment. Does the patient appear to be in distress? Skin color? Capillary refill time?
Just real cold fingers will throw off the readings.
I was not there for the tubing. I was there for the aftermath.
I never felt so stupid in my job before, but the situation was rather frantic, and in truth, I was obliged to do what I was told.