Practice Makes Perfect Exercises Chapter 13

Practice Makes Perfect Exercises Chapter 13

ECG # / Rate / Regularity / P waves / QRS complexes / PR Intervals / ST segments / T waves / QT intervals / U waves / Rhythm/Dysrhythmia
1. / 80 / Patterned irregularity / Normal in underlying rhythm but absent in PJCs / Normal, 0.10 / 0.16 in underlying rhythm but absent in PJCs / Normal / Normal / Normal 0.44 / None / Sinus rhythm with bigeminal PJCs
2. / 188 / Regular / Absent / Normal, 0.10 / Absent / Normal, upsloping / Normal / Shortened, 0.28 / None / Junctional tachycardia
3. / 49 / Regular / One inverted P wave precedes each QRS / Normal, 0.10 (could also be widened due to slurring of S wave, hard to determine where S wave ends) / Shortened, 0.10 / Upsloping / Biphasic / Lengthened, 0.60 / None / Junctional escape rhythm
4. / 88 / Regular / Absent / Normal, 0.08 / Absent / Normal, downsloping / Normal / Shortened, 0.28 / None / Accelerated junctional rhythm
5. / 167 / Regular / Absent / Tall, RS, 0.06 / Absent / Normal, downsloping / Tall (depending on lead) / Shortened, 0.28 / None / Junctional tachycardia
6. / 79 / Occasionally irregular / Tall in underlying rhythm but absent with PJCs / Narrow, RS, 0.10 / 0.16 in underlying rhythm, absent with PJCs / Normal / Normal / Normal, 0.44 / None / Sinus rhythm with two PJCs
7. / 29 / Regular / Inverted, follows the QRS complex / Normal, 0.08 / RP interval instead, 0.10 / Distorted and unable to identify due to presence of P’ waves / Normal, biphasic / Normal, 0.40 / None / Slow (bradycardic) junctional escape
8. / 115 / Regular / Inverted, follows the QRS complex / Normal, 0.10 / RP interval instead, 0.10 / Distorted and unable to identify due to presence of P’ waves / Normal / Normal, 0.40 / None / Junctional tachycardia
9. / 55 / Regular / Absent / Normal, 0.08 / Absent / Normal / Normal / Lengthened, 0.48 / None / Junctional escape
10. / 65 / Occasionally irregular / Normal in underlying rhythm but absent with PJC / Narrow, RS, 0.10 / 0.16 in underlying rhythm, absent with PJC / Normal / Biphasic / Lengthened, 0.52 / None / Sinus rhythm with one PJC
11. / 115 / Regular / Absent / Normal, 0.10 / Absent / Appears elevated and merged with T wave / Tall, pointed / Normal, 0.36 / None / Junctional tachycardia
12. / 79 / Regular / Absent / Normal, 0.10 (could also be widened due to slurring of S wave, hard to determine where S wave ends) / Absent / Depressed, upsloping / Biphasic / Lengthened, 0.56 / None / Accelerated junctional rhythm
13. / 71 / Regular / Absent / Normal, 0.08 / Absent / Downsloping / Tall, pointed / Normal, 0.40 / None / Accelerated junctional rhythm
14. / 160 / Regular / Inverted / Wide, 0.12 / 0.12 / Upsloping, merged with T wave / Distorted due to present of P waves / Hard to determine due to presence of P waves, it is likely shortened / None / Junctional tachycardia (could also be atrial tachycardia originating from a site being lower in the atria)
15. / 79 / Regular / Absent / Normal, 0.08 / Absent / Normal, upsloping / Normal, biphasic / Normal, 0.40 / None / Accelerated junctional rhythm
16. / 79 / Patterned irregularity / Normal in underlying rhythm but follows the QRS in PJCs / Normal, 0.06 / 0.12 in underlying rhythm but RP’ is 0.20 in PJCs / Normal / Nearly flat / Normal 0.42 / None / Sinus rhythm with trigeminal PJCs
17. / 73 / Regular / Inverted and follow the QRS complexes in rhythm / Normal, 0.08 / RP’ is 0.06 / Normal / Flat / Hard to identify, appears lengthened 0.52 or 0.56 / None / Accelerated junctional rhythm
18. / 52 / Regular / One inverted P wave precedes each QRS / Narrow, RS, 0.06 / 0.10 / Normal / Inverted / Normal, 0.38 / None / Junctional escape rhythm
19. / 77 / Occasionally irregular / Normal in underlying rhythm but absent with PJCs / Normal, 0.10 / 0.12 in underlying rhythm, absent with PJCs / Normal / Normal, biphasic / Normal, 0.40 / None / Sinus rhythm with two PJCs
20. / 52 / Regular / Absent / Narrow, slurring of S wave, 0.10 / Absent / Normal / Inverted, biphasic / Normal, 0.44 / Present / Junctional escape rhythm
21. / 160 / Regular / One inverted P wave precedes each QRS / Low amplitude, 0.10 / 0.10 / Downsloping, merged with T wave / Inverted / Shortened, 0.28 / None / Junctional tachycardia
22. / 59 / Regular / One inverted P wave precedes each QRS / qr, 0.08 / 0.08 / Elevated, upsloping / Biphasic / Normal, 0.44 / Present / Junctional escape rhythm
23. / 150 / Regular / One inverted P wave precedes each QRS / Tall, RS, 0.08 / 0.08 / Depressed, upsloping / Flat / Hard to identify, appears shortened, 0.28 / None / Junctional tachycardia
24. / 136 / Occasionally irregular / Normal in underlying rhythm but absent with PJCs / Normal, 0.08 / 0.12 in underlying rhythm, absent with PJCs / Depressed, upsloping / Normal / Shortened, 0.22 / None / Sinus tachycardia with two PJCs
25. / 88 / Regular / Absent / Narrow, slurring of R wave, 0.08 / Absent / Depressed, downsloping / Biphasic / Normal, 0.44 / None / Accelerated junctional rhythm
26. / 75 / Patterned irregularity / Normal in underlying rhythm but an inverted P wave precedes the QRS complex in the PJCs / Normal, 0.10 / 0.12 in underlying rhythm but 0.10 in PJCs / Depressed / Flat / Hard to see but likely normal at 0.44 / None / Sinus rhythm with trigeminal PJCs
27. / 75 / Regular / One inverted P wave follows each QRS / Normal, 0.10 / RP interval instead, 0.10 / Upsloping / Biphasic / Lengthened, 0.52 / None / Accelerated junctional rhythm
28. / 110 / Patterned irregularity / Biphasic in underlying rhythm but absent in PJCs / Wide, delta wave, RS, 0.12 / 0.20 in underlying rhythm but absent in PJCs / Normal / Normal / Normal 0.40 / None / Sinus tachycardia with bigeminal PJCs , WPW
29. / 136 / Regular / Absent / Narrow, RS, 0.08 / Absent / Upsloping / Tall, pointed / Shortened, 0.28 / None / Junctional tachycardia
30. / 136 / Occasionally irregular / Normal in underlying rhythm but absent with PJCs / Normal, 0.08 / 0.12 in underlying rhythm, absent with PJCs / Upsloping / Tall / Shortened, 0.32 / None / Sinus tachycardia with two PJCs
31. / 81 / Patterned irregularity / Normal in underlying rhythm but follows the QRS in PJCs / Low amplitude, 0.06 / 0.12 in underlying rhythm but RP’ is 0.20 in PJCs / Normal / Normal / Normal 0.40 / None / Sinus rhythm with trigeminal PJCs
32. / 41 / Regular / Absent / Narrow, RS, 0.06 / Absent / Depressed, upsloping / Flat / Hard to see but likely lengthened at 0.52 / None / Junctional escape rhythm
33. / 100 / Occasionally irregular / Normal in underlying rhythm but may follow the QRS in the PJC / Narrow, deep, RS, 0.08 / 0.12 in underlying rhythm / Elevated / Normal / Shortened, 0.32 / None / Sinus tachycardia with one PJC
34. / 88 then accelerates to 150 BPM / Irregular / Normal in underlying rhythm but follows the QRS complexes in the tachycardia / Narrow, delta wave, 0.08 / Short, 0.08 / Depressed, downsloping / Normal / Shortened, 0.32 / None / Sinus rhythm with WPW and run of PSVT
35. / 47 / Regular / Absent / Normal, 0.10 / Absent / Normal / Tall, pointed / Extended, 0.52 / Present / Junctional escape rhythm
36. / 136 / Regular / Absent / Narrow, RS, 0.08 / Absent / Upsloping / Normal / Shortened, 0.28 / None / Junctional tachycardia
37. / 60 / Occasionally irregular / Normal in underlying rhythm but inverted P’ wave precedes QRS complexes in PJCs / Low amplitude, wide, slurred Rs, 0.16 / 0.20 in underlying rhythm, 0.12 with PJCs / Upsloping / Normal / Lengthened, 0.52 / None / Sinus rhythm with two PJCs (may be trigeminal PJCs, need more tracing to determine)
38. / 58 / Regular / One inverted P wave precedes each QRS / Slurred RS, 0.10 / 0.08 / Elevated / Biphasic / Extended, 0.64 / Absent / Junctional escape rhythm
39. / 71 / Occasionally irregular / Normal in underlying rhythm but inverted P’ wave precedes QRS complex in PJC / Wide rSR’S’, 0.12 / 0.16 / Normal, upsloping / Normal / Normal, 0.44 / Absent / Sinus rhythm with one PJC
40. / 214 / Regular / One inverted P wave precedes each QRS / Delta wave, 0.10 / 0.04 / Downsloping / Appearance distorted due to presence of P’ waves / Cannot identify / Absent / Antedromic AVRT
41. / 125 / Patterned irregularity / Normal in underlying rhythm but absent in PJCs / Normal, 0.08 / 0.12 / Depressed, downsloping / Biphasic / Normal, 0.36 / Absent / Sinus tachycardia with trigeminal PJCs
42. / 60, then it slows to 50 BPM / Irregular / Normal in underlying rhythm but absent in junctional escape / Pathological Q waves present, 0.08 / 0.16 in underlying rhythm but absent in junctional escape / Elevated / Upright in underlying rhythm but inverted in junctional escape / Normal, 0.40 in underlying but prolonged, 0.52 in junctional escape / None / Sinus pause with junctional escape
43. / 110 / Patterned irregularity / Normal in underlying rhythm but inverted P’ wave precedes QRS complex in PJCs / Normal, 0.08 / 0.12 in underlying rhythm but 0.08 in PJCs / Depressed and upsloping in underlying rhythm but flat in PJCs / Distorted by inverted P wave in underlying rhythm but inverted and biphasic in PJCs / Cannot determine / None / Sinus tachycardia with bigeminal PJCs
44. / 50 / Regular / Absent / Narrow RS, 0.06 / Absent / Normal / Nearly flat / Normal, 0.44 / Absent / Junctional escape rhythm
45. / 200 / Regular / Absent / Narrow, RS, 0.08 / Absent / Upsloping / Tall, pointed / Shortened, 0.28 / None / Junctional tachycardia
46. / 106 / Regular / One inverted P wave precedes each QRS / Normal, 0.08 / 0.10 / Downsloping / Biphasic / Normal, 0.36 / None / Junctional tachycardia
47. / 83 / Patterned irregularity / Normal in underlying rhythm but upright P’ wave precedes QRS complex in PACs / Narrow, RS, 0.06 / 0.14 / Upsloping / Normal, some are distorted by presence of P’ waves / Prolonged, 0.48 / None / Sinus rhythm with quadrigeminal PACs
48. / 45 / Regular / Absent / Low amplitude, 0.08 / Absent / Normal / Biphasic, nearly flat / Lengthened, 0.52 / Absent / Junctional escape rhythm
49. / 160 / Regular / One inverted P wave follows each QRS / Wide, 0.12 / RP’ instead, 0.08 / Downsloping / Appearance distorted due to presence of P’ waves / Cannot identify / Absent / Antedromic AVRT
50. / 70 / Patterned irregularity / Normal in underlying rhythm but absent in PJCs / Tall, narrow RS, 0.10 / 0.16 in underlying rhythm but absent in PJCs / Normal / Normal in underlying but slightly biphasic in PJCs (could be biphasic throughout but appearance in underlying rhythm is distorted due to PJCs) / Lengthened, 0.48 / None / Sinus rhythm with bigeminal PJCs
51. / 58 / Regular / One inverted P wave follows each QRS / Wide rS, 0.12 / RP interval instead, 0.16 / Normal / Appearance distorted due to presence of P’ waves / Cannot identify / None / Junctional escape rhythm
52. / 79 / Occasionally irregular / Normal in underlying rhythm but inverted P’ wave precedes QRS complexes in PJCs / Tall, notched RS, 0.16 / 0.12 in underlying rhythm, 0.10 with PJCs / Upsloping / Tall, pointed / Normal, 0.40 / None / Sinus rhythm with two PJCs (would be trigeminal PJCs if they continued as seen in first portion of tracing)
53. / 68 / Regular / One inverted P wave precedes each QRS / Narrow RS, 0.06 / 0.10 / Normal / Normal / Shortened, 0.32 / None / Accelerated junctional rhythm