Nurse Residency Prep EKG Practice Questions and Answers
how many large squares in an 6 second EKG 30 squares normal PR interval 0.12-2.0 sec large box sec 0.20 small box sec 0.04 qrs interval sec 0.06-0.12 QRS greater than _____________ is What type of block greater than 0.12 is a branch bundle block finding rate number of R waves in 6 second multiplied by 10 big box rate method 300/number of big boxes between RR Electrical conduction in Heart SAAV Bundle of HIS Perjunke Fibers first degree heart block KC rhythm is regular heart rate less than 60 PR interval is greater than 0.20 small boxes in normal PR interval 3-5 small boxes second degree heart block type 1 wenckebach KC P to P intervals are regular PR intervals become progressively longer Eventually a QRS complex is skipped
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