The mnemonic "" to estimate the rate in beats per minute (BPM) In other words if you pass 2 lines before the next QRS, the heart rate (HR) would be less than 150 Remember that this is merely an estimate You should useExample #3 These QRS complexes are less than two large boxes apart, thus the heart rate is between 150 and 300 bpm Multiply the number of QRS complexes byLead I should be opposite of AVR (in a normal EKG) Rwave should progress in chest leads (V leads) such that by V4 Memorize 300, 150, 100, 75, 60, 50, 43, 37
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