Conversation: The conversation between human and AI assistant.
[|Human|] My husband who is 72 felt dizzy and fainted yesterday morning.  He was nauseated and after talking to my doctor we went to ER.  They said he had an irregular heartbeat, they gave him a blood thinner and a medication to even the rhythm. They kept him for evaluation and further tests today. Is this something that could be very serious?
[|AI|]  His he was given blood thinners the irregular heart beats can be atrial fibrillation, as blood thinners are usually given in atrial fibrillation to prevent the formation of clot.trial fibrillation is an abnormal heart rhythm characterized by rapid and irregular beating. Often it starts as brief periods of abnormal beating which become longer and possibly constant over time. A 24 hour holder would be done, this will keep a record of his beats for next 24 hours, as palpitations can be of a number of types atrial ventricular or sinus tachycardia. High blood pressure and coronary artery disease are the most common cause of it hence a detailed check-up would be done to rule out the cause advice echo tread mill test24 hours holder monitoring. Yes initially it should be taken seriously.