CAMC EKG Exam Questions & Answers 2025/2026

CAMC EKG Exam Questions & Answers 2025/2026 If you have a regular rhythm how do you find heart rate 1500 divided by # of small blocks in the RR interval. If the heart rate is regular how do you do the r-rsec # small blocks from R-R interval x 0.04 and then hit square root button If you have an irregular rhythm how do you find the heart rate Count number of QRSs and add 0 = ___ bpm How do you find PRI Count # if small blocks from start of P to start of QRS x 0.04 How do you find QRS Count # of small blocks from start of QRS to end of QRS x 0.04 How do you find QT Count # of small blocks from start of QRS to where the T wave returns to isoelectric line x 0.04 How do you find QTc QT divided by square root of R-Rsecs Escape A higher pacemaker site does not create an impulse so a lower pacemaker site takes over. Irritability This is a cause of premature beats Pacemaker rule The pacemaker site firing the fastest controls the heart rate Inherent rate Natural rate of a pacemaker Automaticity The ability of the heart to initiate an impulse without outside stimulation What represents polarization ? Isoelectric line What represents atrial depolarization P wave What represents the delay in the Av node