Quiz ECG 025

FACEM VAQ Exam 2009.2 – Question 7

• The overall pass rate for this question was 48/67 (71.6%).
• ECG features as below
• Pass criteria
  • Narrow complex tachycardia rate 150-180/min, regular
  • No P waves, right axis, rSR pattern V1-3 consistent with incomplete RBBB with T wave inversionand ST depression V1-5
  • Interpretation:
    • Young haemodynamically stable female—likely to be SVT with aberrant conduction leading to RBBB pattern – possibly re-entrant pattern
    • ST-T changes more likely to be conduction disturbance than ischaemia in clinical context, but should be considered
• Fail criteria:
  • Incorrect rate
  • Narrow complex tachycardia described as VT
  • ST changes described as ischaemia without consideration of conduction abnormality