What does QRS complex represent in ECG?

Premature Ventricular Complex (PVC)

The QRS Complex: Q-wave, R-wave, S-wave, R-wave progression – The Cardiovascular

Wide Complex Tachycardia Video - ACLS.com

Quantum Computing & Tech ⚛️ on Instagram: "What is time… really? ⏳ Your watch isn’t measuring time itself — it’s measuring change. A quartz crystal vibrates… atoms switch states… and we count those repeating patterns as “seconds.” Every physical system in the universe is constantly changing, and we use those changes as clocks. But the deeper question remains: 👉 If change stopped, would time still exist? 👉 Is time something “out there”… or something our minds create to track motion? Even physic

Kristine Tuttle on Instagram: "Cardioversion vs. Defibrillation🫀 – Cardioversion – ⚡Synchronized shock ⚡Lower amount of joules (energy) used ⚡Not done with CPR ⚡Stable patients (must have a QRS complex) ⚡Examples: A-fib – Defibrillation – ⚡ Synchronized shock ⚡Higher amount of joules (energy) used ⚡Resume CPR after shock ⚡Unstable patients ⚡Examples: VT or VF #cardiacnursing #nursingschool #nursingstudent #BSN #NCLEX #Becominganurse #nurseeducator"