Hello sir/ ma?am my mother is a bp patient since 9 years. She has been prescribed telma 20 by the doctor. Since few days I have noticed that whenever I take her blood pressure reading in the evening it shows an irregular heartbeat for once and after that it?s normal. I have heard that irregular heartbeat is not good for heart. My question is that why is it so that her heartbeat is irregular for one reading and that to in the evening and it comes back to normal in the next reading. Is it a matter of concern.