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A series of exam questions and correct answers related to ecg (electrocardiogram) essentials. It covers topics such as delays in impulse conduction, lead placement, heart blocks (1st, 2nd, and 3rd degree), inverted p waves, junctional rhythms, pacs (premature atrial contractions), pjcs (premature junctional contractions), and pvcs (premature ventricular contractions). The questions are designed to test understanding of ecg interpretation and cardiac electrophysiology, making it a useful resource for medical students, nurses, and other healthcare professionals studying cardiology.
Typology: Exams
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delays |impulse |from |atria |before |it |moves |to |the |ventricles |- |CORRECT | ANSWER✔✔-av |node right |sternal |border, |4th |intercostal |space |L1 |- |CORRECT |ANSWER✔✔-lead | 1 | goes |where 1st |degree |heart |block |- |CORRECT |ANSWER✔✔-long |PR inverted |p |wave |- |CORRECT |ANSWER✔✔-junctional junctional accelerated junctional |- |CORRECT |ANSWER✔✔-40- 60- 100- Ventricular |- |CORRECT |ANSWER✔✔-20- Junctional |- |CORRECT |ANSWER✔✔-40- SA |- |CORRECT |ANSWER✔✔-60-
P |wave |comes |before |it |should |which |makes |the |preceding |T |wave |look | abnormally |large |- |CORRECT |ANSWER✔✔-PAC QRS |is |not |preceded |by |a |P |wave, |but |the |width |of |the |QRS |is |unaffected |- | CORRECT |ANSWER✔✔-PJC They |do |not |follow |a |P |wave |and |are |very |wide |complexes |compared |to |the | sinus |beat |QRSs. |- |CORRECT |ANSWER✔✔-PVC 1st |degree |AV |block |- |CORRECT |ANSWER✔✔-long |pr |interval 2nd |degree |AV |block |type | 1 |- |CORRECT |ANSWER✔✔-pr |progressively | lengthens, |longer, |longer, |drop 2nd |degree |AV |block |type | 2 |- |CORRECT |ANSWER✔✔-p |regular, |irregularly | dropped |qrs 3rd |degree |heart |block |- |CORRECT |ANSWER✔✔-no |obvious |correlation | between |p |and |qrs,