Sarah Vance | ICU Nurse Education on Instagram: "Why is the swinging almost on beat, though? Have you ever witnessed this? On top of the classic symptoms of Beck's Triad (hypotension, + JVD, muffled heart tones), you can see what is called electrical alternans. This is when there will be alternating (hence the name) amplification (height) or axis of the QRS complex on an ECG tracing. It would look something like this TtTtTtTt (you get the point..hopefully!) This happens as the heart swings - dan