What are the tests for atrial fibrillation?

Electrocardiogram. If the atrial fibrillation is ongoing then an electrocardiogram will show it. If it only occurs from time to time, then there are different types of monitors that a patient can use at home to record the heart rhythm; this is another type of electrocardiogram sometimes referred to as an event recorder.
EKG for diagnosis. The first step is to make a diagnosis and an EKG is the easiest way if you are in the arrhythmia. Otherwise a Holter or an Event monitor would be needed.
It Varies. A clue may be irregular pulse on exam. To make the diagnosis officially, some recording of the heart rhythm needs to be made. This can be via 12-lead ekg, 24-hr holter monitor, or 30-day loop monitor. Sometimes it is picked up by telemetry when in the hospital. Other tests (echo, stress test) might be ordered when the diagnosis of af is made, to look for other related heart conditions.

Related Questions

How is af, atrial fibrillation diagnosed? Please name all tests and criteria. Thank you.

Holter. Usualmente suspected with symptoms of palpitations, shortness of breath dizziness. A plain ekg can make the diagnosis but if it comes and goes a holter may be needed. There is a new attachment to iphone that looks like a case and can show your rhythm , needs to be prescribed and interpreted by a doctor , though. Read more...
Many options. Electrical activity during afib needs to be recorded for official diagnosis. Standard ecg, or longer tests such as holter monitor (24-48 hrs), zio patch (14 days), event recorder/mcat (up to 30days) or even an implantable loop recorded (3+ years). There needs to be a poorly defined, irregular rhythm from the top of the heart. For more information check out www.Heart.Org. Read more...
Hah. Name all tests and criteria, eh? I think you're over-reaching. Afib is a simple diagnosis to make in most cases. A single ekg, or even a rhythm strip is usually sufficient. The lower chamber beats are markedly varied in their timing, and there's no clear organized rhythm of the top chamber visible on the strip/ekg. The end. :) every one in a while it's weirder than that, but not often. Read more...

If I had atrial fibrillation would it have shown up on my ekg and stress tests?

Depends. It depends if you have Afib all the time or intermittently. Would only show up on EKG and stress tests IF it was present at the time. If you have intermittent Afib there are simple tests that can show how often it is present and how Kong it lasts. Some people can always or sometimes feel it's presence, while others are totally unaware of when it occurs. Read more...

Always had heart palps, had tests years ago all normal. Lately palps increased. Can Atrial Fibrillation just develop? Or do you always have it?

Atrial fibrillation. AFib can 'just develop'. If you have anxiety disorder, it will magnify any minimal extrasystoles you may have. There are many monitoring devices, event recorders even implantable but your doctor can best evaluate whether you need aggressive attempts at seeing if you have an arrhythmia and what it is. Read more...

15 yrs with hypothyroidism taking 200mcg test 3 days ago came back 8.0 reduce to 125mcg reason of test ER with atrial fibrillation this the reason?

Thyroid replacement. I'm not sure i fully understand your question ( i understand you have space constraints). Starting full dose thyroid replacement can cause atrial fibrillation. If starting replacement in the future, he should start at 25 mcg and raise the dose every several weeks by 25 mcgs until he reaches the full dose. Read more...
Incomplete. Your question is incomplete. We don't know what test came back 8.0, what drug you're taking, etc. Let's assume you're asking if the er reduced your levothyroxine to 125mcg with a TSH of 8.0 for atrial fibrillation. That would make some sense from a fib perspective, but the TSH of 8.0 would mean your body needs more levothyroxine, not less, so the picture still isn't clear from your question. Read more...

How dangerous could atrial fibrillation be in a healthy, very fit 18 year old with no other problems? Normal echocardiogram, ekg, and stress test

Not likely. Atrial fibrillation is not as common in young individuals as in elderly. Sometimes benign arrhythmias are over diagnosed as atrial fibrillation. In your case how was your atrial fibrillation diagnosed? Otherwise atrial fibrillation remains a significant medical condition with a variety of possible complications, the most common being stroke. Read more...

Been to two heart doctors and all test are normal, but still have chest pain, lightheaded, and shortness of breath! Is this atrial fibrillation?

Maybe ... Chronic Atrial fibrillation is not likely to be missed on even a routine ECG. A comprehensive history is not likely to miss it either. However, if your symptoms are episodic and you weren't having the symptoms while you were being tested, it is POSSIBLE that episodic atrial fibrillation or other Paroxysmal Supraventricular Tachycardias (PSVT) could cause those symptoms. Read more...