frijole....yeah...heaven forbid you get a glimpse of any test they perform on us....these techs sometimes act as if they are guarding the national secret lol
I Always say to the tech..."so what did you see" they always say" can"t tell you " I always say'''why don't you know how to read it. they always frown.......
They have moved the equipment around where I got mine so that I couldn't see anything. Booo.
That means you are pregnant ! With twins ! Red for a girl and Blue for a boy. Congrats!
Just kidding, Garyw beat me to it with a very good explanation.
The colors indicate bloodflow and it's direction within an organ. Blue in one direction, red in the opposite direction.