Differentials
Atrial fibrillation
SIGNS / SYMPTOMS
INVESTIGATIONS
SIGNS / SYMPTOMS
No differentiating signs/symptoms
INVESTIGATIONS
ECG shows uncoordinated atrial activation with rapidly oscillating, fibrillatory waves that vary in amplitude, shape, and timing.[20]
Atrial tachycardia
SIGNS / SYMPTOMS
INVESTIGATIONS
SIGNS / SYMPTOMS
No differentiating signs/symptoms
INVESTIGATIONS
Generally, by ECG, atrial tachycardia has isoelectric intervals between the P waves in all leads. At very high atrial rates, it may be extremely difficult to distinguish the two.[20]
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