Examine the EKG rhythm strip for the absence of discernible P waves. This is the hallmark of atrial fibrillation.
Instead of P waves, you’ll observe irregular, chaotic waveforms called fibrillatory waves. These are small, irregular, undulating waves that precede each QRS complex.
The R-R intervals will demonstrate significant irregularity. Measure the intervals between consecutive R waves; you should find inconsistent spacing. This irregular rhythm reflects the chaotic atrial activity.
The ventricular rate will likely be irregular and often tachycardic (above 100 bpm), though it can sometimes be within the normal range. Pay close attention to this rate, noting its variability.
Look for a rate exceeding 100 bpm. While not always the case, a fast ventricular rate is frequently associated with atrial fibrillation.
Important Note: While these features are highly suggestive of atrial fibrillation, a definitive diagnosis requires clinical correlation and potentially further investigations.
Consider consulting with a cardiologist for proper interpretation and management of suspected atrial fibrillation.
