An Inconclusive result could potentially be caused by a high or low heart rate, or another heart rhythm that is not classified as Atrial Fibrillation or Sinus Rhythm. A high heart rate can be normal, such as during exercise or emotional stress. It can also be a response to dehydration, fever, infection or other conditions including Atrial Fibrillation or other arrhythmia.
A low heart rate can be normal as well. Reasons for a low heart rate include certain medications or conditions associated with abnormal electrical activity in the heart. If you’d like to record your ECG again after an Inconclusive result, you should stay still for about 5–10 minutes before doing so.
The following are possible reasons for an Inconclusive result:
Your heart rate was greater than 120 BPM, and your heart rhythm is Atrial Fibrillation. Your heart rate was less than 50 BPM, resulting in a low heart rate. Your heart rate was greater than 150 BPM, resulting in a high heart rate, but your heart rhythm is not Atrial Fibrillation. Your heart rhythm was neither Sinus Rhythm nor Atrial Fibrillation.