He is probably connected to a cardiac monitor that is not captured in the pic; his IV does not need to be attached to anything if he is not receiving continuous IVF(IV fluids); I call it "capped & clamped", but the IV remains in place in discharge unless the IV infiltrates. The O2 regulator is connected to tubing over his left shoulder, but I cannot tell if it is connected or how many liters it is running at. The only thing that stands out to me is: the time on the clock.