Orris
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Yeah, the patient is a middle-aged African male. His BP is very low. Can you just read the ECG and comment on it?

Here is my ECG interpretation for this patient:

ECG Report - GE MAC2000 | 01.06.2026 | 100 bpm

Machine Measurements

  • Rate: 100 bpm
  • QRS duration: 70 ms (normal)
  • QT / QTc (Bazett): 320 / 412 ms (borderline-normal)
  • QRS axis: -42° (left axis deviation)
  • T axis: -56°
  • RR / PP: 598 / 600 ms

My Interpretation

1. Rhythm - Normal Sinus Rhythm at 100 bpm The rate is at the upper limit of normal (sinus tachycardia threshold is >100). In a hypotensive patient, this is a compensatory response and should be taken seriously.
2. Left Axis Deviation (LAD) - QRS axis -42° This is consistent with Left Anterior Fascicular Block (LAFB). In the context of an inferior MI, LAD can also reflect reciprocal changes or conduction disease involving the left anterior fascicle.
3. Inferior Infarct - Age Undetermined Looking at leads II, III, and aVF:
  • There are Q waves visible in the inferior leads (II, III, aVF), which the machine flags as inferior infarct of undetermined age.
  • The ST segments in inferior leads do not appear to show acute elevation on this trace, suggesting this may be an old/prior inferior MI rather than an acute STEMI.
  • However, given the clinical picture (hypotension), acute right ventricular (RV) infarction must be actively excluded - RV infarction commonly accompanies inferior MI and is a major cause of hypotension with a low/normal BP.
4. Precordial Leads (V1-V6)
  • V4-V6 show tall, somewhat prominent complexes - worth noting for lateral wall involvement.
  • V1-V2 morphology: look carefully for R-wave progression and any posterior MI pattern (dominant R in V1-V2 with ST depression suggesting posterior involvement, which often accompanies inferior MI).
  • No obvious anterior ST elevation.
5. aVL
  • Typically shows reciprocal changes in inferior MI (ST depression / Q wave in aVL). This appears consistent here.

Clinical Correlation - URGENT

Given hypotension + inferior infarct pattern + sinus tachycardia, the following must be excluded immediately:
ConcernAction
Right Ventricular InfarctionObtain right-sided ECG (V3R-V4R) - ST elevation in V4R is diagnostic. Do NOT give nitrates - they will cause catastrophic BP drop
Posterior MICheck V7-V9 or look for dominant R + ST depression in V1-V2
Cardiogenic shockAssess JVP, lung fields, urine output
Inferior STEMIRepeat ECG in 15-30 min if clinically worsening
Key point for RV infarction (common pitfall): The classic triad is hypotension + clear lung fields + elevated JVP (Kussmaul's sign). Treatment is aggressive IV fluid loading (NOT diuretics), and nitrates/morphine are contraindicated.

Summary

Abnormal ECG. Sinus tachycardia at 100 bpm. Left axis deviation (-42°, consistent with LAFB). Inferior infarct pattern of undetermined age (Q waves in II/III/aVF) - cannot exclude acute inferior/RV MI in this hypotensive patient. Urgent right-sided leads and clinical reassessment required.
This patient needs immediate attention. Do not wait for troponin results before acting clinically.
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Can you help me with the ECG findings

Here is my full interpretation of this ECG:

ECG Interpretation

(Note: The tracing is rotated 90°, so leads are read vertically. I'm reading each lead column carefully.)

Technical Details (estimated from tracing)

  • Standard calibration: 25 mm/s, 10 mm/mV (assumed standard)
  • Leads visible: I, II, III, aVR, aVL, aVF, V1-V6

1. RATE

  • Estimated ~75-85 bpm based on RR intervals
  • Regular rhythm

2. RHYTHM

  • Sinus rhythm - P waves appear to precede each QRS
  • Regular RR intervals

3. QRS AXIS

  • Lead I: appears predominantly positive
  • Lead aVF: appears negative
  • This suggests Left Axis Deviation (LAD)
  • Combined with the morphology, this is consistent with Left Anterior Fascicular Block (LAFB)

4. KEY FINDINGS BY LEAD GROUP

Inferior Leads (II, III, aVF)

  • Q waves present in II, III, aVF - significant, pathological-looking
  • ST segments: appear isoelectric/flat in inferior leads - no acute ST elevation visible
  • This pattern is consistent with a prior inferior MI (old infarct)

Lateral Leads (I, aVL, V5, V6)

  • Small complexes in I and aVL
  • V5-V6: Relatively preserved R waves, no obvious ST elevation

Right Precordial (V1-V2)

  • V1: rS pattern, small r wave
  • V2: Slightly taller R - poor R-wave progression overall
  • No dominant R in V1-V2 to suggest posterior MI on this trace

Mid-Precordial (V3-V4)

  • V3-V4 show striking findings:
    • Deep, wide QS complexes - loss of R wave
    • ST elevation visible in V3-V4, with morphology suggesting possible acute or subacute anterior injury
    • This is a very significant finding

V5-V6

  • QRS morphology appears broader/fragmented
  • ST changes present

5. QRS MORPHOLOGY

  • QRS appears borderline widened in precordial leads
  • No classic LBBB or RBBB pattern, but there is abnormal conduction

⚠️ CRITICAL FINDINGS - SUMMARY TABLE

FindingLeadsSignificance
Pathological Q wavesII, III, aVFPrior inferior MI
ST elevationV3-V4 (possibly V2-V5)Possible acute anterior STEMI
Left axis deviationI, II, aVFLAFB or prior inferior MI
Poor R-wave progressionV1-V3Anterior wall loss / prior anterior MI
Broad/fragmented QRSV3-V6Conduction abnormality / scar

OVERALL IMPRESSION

This ECG shows evidence of a COMBINED inferior and anterior infarct pattern.
The Q waves in inferior leads with ST changes in V3-V5 raises serious concern for:
  1. Acute anteroseptal STEMI (if these ST changes are new) - this is a medical emergency
  2. Old anterior + old inferior MI with residual ST changes (LV aneurysm pattern if ST elevation is chronic and concave/domed)
  3. Extensive anterior MI with new or evolving changes

URGENT CLINICAL ACTIONS

  1. Compare with prior ECG immediately - is the ST elevation new or old?
  2. Troponin (serial) - if not already done
  3. Echocardiogram - assess wall motion, LV function, rule out LV aneurysm
  4. If ST elevation is NEW → Activate cath lab / STEMI protocol
  5. Aspirin + anticoagulation if ACS confirmed and no contraindication
  6. Monitor BP closely - this patient's hypotension could reflect cardiogenic shock from large anterior MI with or without old inferior MI

Note on Image Quality

The ECG is photographed sideways which makes fine measurements difficult. If possible, a direct digital export or a clearer upright photograph would help confirm the ST measurements precisely. That said, the overall pattern is consistent with the above interpretation.
This is a high-risk ECG in a hypotensive patient - treat as a potential STEMI until proven otherwise.
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