Read the rhythm
ECG Practice
Systematic ECG interpretation across 105 annotated strips, graded by difficulty and mapped to the patterns that recur in NEET-PG, INI-CET and FMGE.
- Annotated ECG strips
- Available
- Difficulty levels
- 3
- Systematic method
- 5-step
- Pattern categories
- 4
Why ECG interpretation matters for exams
ECG questions appear in every major Indian postgraduate medical entrance. NEET-PG, INI-CET and FMGE each allocate marks to rhythm recognition, ACS pattern identification and conduction defect classification. Getting these marks requires a repeatable method, not pattern-matching from memory.
MedNext ECG Practice provides 105 annotated strips organised into four clinical categories: normal variants, arrhythmias, acute coronary syndrome patterns and conduction defects. Each strip is graded as basic, intermediate or advanced so you can build competence progressively rather than jumping between trivial and complex tracings.
The five-step systematic approach
Every strip in the collection is annotated using the same five-step framework. Learn it once, apply it to any 12-lead ECG in the exam or on the ward.
Rate
Calculate ventricular rate using the 300-method or 6-second strip count. Identify bradycardia (<60) and tachycardia (>100).
Rhythm
Assess regularity, identify P waves, determine P-QRS relationship and classify sinus versus non-sinus rhythms.
Axis
Use leads I and aVF to determine the frontal plane axis. Recognise left and right axis deviation and their clinical significance.
Intervals
Measure PR interval, QRS duration and QTc. Identify prolongation patterns that point to specific conduction defects or drug effects.
Morphology
Analyse ST segments, T waves, Q waves and R-wave progression. Recognise STEMI criteria, strain patterns and bundle branch block morphology.
ECG categories covered
Normal and variants
- Normal sinus rhythm
- Sinus arrhythmia
- Early repolarisation
- Right axis deviation of youth
- Athlete's heart patterns
Arrhythmias
- Atrial fibrillation and flutter
- SVT and AVNRT
- Ventricular tachycardia
- Complete heart block
- Wolff-Parkinson-White syndrome
- Torsades de pointes
ACS patterns
- Anterior STEMI (LAD territory)
- Inferior STEMI (RCA territory)
- Lateral STEMI
- Posterior MI (reciprocal changes)
- NSTEMI and unstable angina patterns
Conduction defects
- First-degree AV block
- Mobitz type I (Wenckebach)
- Mobitz type II
- Left bundle branch block
- Right bundle branch block
- Bifascicular and trifascicular block
How to use this collection for exam preparation
Start with the basic-grade strips to establish your systematic approach. Work through each tracing using the five-step method before checking the annotation. The goal is to build a reliable reading habit, not to guess the diagnosis from the title.
Move to intermediate strips once you can consistently identify rate, rhythm and axis within 30 seconds. These introduce overlapping findings such as atrial fibrillation with ST changes or bundle branch block with axis deviation, which is where exam questions draw their difficulty.
The advanced strips present the patterns that distinguish high scorers: subtle posterior MI from reciprocal changes, differentiating SVT from VT using Brugada criteria, and recognising hyperkalaemia-related ECG progression. These appear as single best answer questions in NEET-PG and as image-based stems in INI-CET.
Frequently asked questions
Do I need prior ECG knowledge to start?
No. The basic-grade strips assume you know the anatomy of a 12-lead ECG but not the interpretation. The five-step method is explained with each strip, so you learn the framework as you practise.
How are difficulty levels assigned?
Basic strips show one clear finding (e.g. sinus bradycardia, obvious STEMI). Intermediate strips combine two findings or require interval measurement. Advanced strips present subtle or overlapping patterns that require systematic exclusion.
Are these mapped to specific NEET-PG or INI-CET topics?
Yes. The strips are tagged to Medicine and Pharmacology competencies where ECG interpretation is assessed. Arrhythmia and ACS patterns align with the cardiology and emergency medicine weightage in recent exam papers.
Can I use this alongside the chapter notes?
The ECG collection is cross-linked to the relevant cardiology, pharmacology and emergency medicine chapters within MedNext. Explanations reference the teaching material so you can move between the strip and the underlying concept.
How often is the collection updated?
New strips are added as part of the regular content cycle. The existing ECG strips are reviewed for annotation accuracy and exam relevance with each update.
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