Myocardial Infarction ECG Reference Card | 7 Wave Abnormalities with Criteria and Descriptions | Lanyard Card for Paramedics and nurses

ECG Pocket Cards

These reference cards are part of make your own bundle, select either 3, 4, 5 or 6 of any of the reference cards (excluding the predefined bundles)

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Myocardial Infarction ECG Reference Card – 7 Key Wave Abnormalities with Criteria & Descriptions

Master MI recognition with this concise and practical ECG reference card highlighting the seven most important ECG wave abnormalities associated with myocardial infarction. Designed for paramedics, emergency clinicians, cardiology students, and nurses, this tool supports faster, more confident ECG interpretation in high-stakes environments.

What’s Included on the Card:

Each abnormal wave is paired with a brief clinical description and diagnostic criteria to help you identify the pattern, understand its significance, and act appropriately.

ST Elevation
• Criteria: ≥1 mm in ≥2 contiguous leads and/or ≥1.5 mm for woman, ≥ 2mm men >40yrs & 2.5mm men <40yrs  in V2–V3
• Description: Sign of transmural infarction; hallmark of STEMI
ST Depression
• Criteria: ≥0.5 mm depression in ≥2 contiguous leads
• Description: Suggests ischaemia or reciprocal change
T-Wave Inversion
• Criteria: Inverted T waves in contiguous leads
• Description: May indicate ischaemia, infarction, or reperfusion
De Winter T-Waves
• Criteria: Up-sloping ST depression with peaked T waves in precordials
• Description: Anterior STEMI equivalent; LAD occlusion
Wellens Syndrome
• Criteria: Deeply inverted or biphasic T waves in V2–V3, no ST elevation
• Description: Indicates critical LAD stenosis; high-risk
Left Bundle Branch Block (LBBB)
• Criteria: Wide QRS >120 ms, dominant S in V1, broad R in I/V6
• Description: Can mask MI; use Sgarbossa criteria
Right Bundle Branch Block (RBBB)
• Criteria: rSR’ in V1, wide QRS, slurred S in I/V6
• Description: May coexist with MI, especially in anterior infarction

Product Features:

- Size: 86mm x 54mm (standard ID card/lanyard size)
- Material: High-quality, waterproof PVC plastic with a gloss finish
- Attachment: Features an elongated hole punch – perfect for lanyards, badge reels, or ECG folders
- Design: Clean and structured layout for quick reference on shift or during study

Bundle:
- Includes 6 ECG reference cards
- PLUS Transparent ECG ruler
- £2.70 per card

Why You’ll Love It:

- Supports rapid MI diagnosis in high-pressure scenarios
- Helps with clinical exams, ECG courses, and prehospital care
- Reinforces key patterns like STEMI equivalents and high-risk syndromes
- Designed for real-world use by clinicians at all levels

Whether you're in the back of an ambulance or reviewing a 12-lead at triage, this card keeps MI pattern recognition simple and accessible.