WebJan 6, 2014 · A A. Irregular heartbeat or arrhythmia is a condition in which the heart rate is abnormal. Causes of irregular heartbeat include high blood pressure, imbalance of electrolytes in the blood, injury caused due to heart attack, valve disorder, or coronary artery disease. Atrial fibrillation is a common type of irregular heartbeat. WebOct 22, 2024 · Tachycardia is an increased heart rate for any reason. It can be a usual rise in heart rate caused by exercise or a stress response (sinus tachycardia). Sinus tachycardia is considered a symptom, not a disease. Tachycardia can also be caused by an irregular heart rhythm (arrhythmia). Things that may lead to tachycardia include: Fever
Target Heart Rates Chart American Heart Association
WebOct 8, 2024 · A normal resting heart rate for adults ranges from 60 to 100 beats per minute. Generally, a lower heart rate at rest implies more efficient heart function and better cardiovascular fitness. For example, a well-trained athlete might have a normal resting heart rate closer to 40 beats per minute. To measure your heart rate, simply check your pulse. WebNov 22, 2024 · Explanation of R-R Interval Calculation Sometimes it is necessary to calculate how many milliseconds the R-R interval measures (when calculating the corrected QT … onsplayercn
Tachycardia - Symptoms and causes - Mayo Clinic
WebJun 15, 2024 · Atrial fibrillation (AF or AFib) is an abnormality in the heart rhythm, which involves irregular and often rapid beating of the heart. Symptoms may include heart palpitations, dizziness, fainting, fatigue, shortness of breath, and chest pain. Atrial fibrillation treatment may include medication or procedures like cardioversion or ablation to ... WebMar 8, 2024 · Internal rate of return (IRR) is the discount rate that makes the net present value of all cash flows (both positive and negative) equal to zero for a specific project or investment. IRR may also be referred to as the discounted cash flow rate of return (DCFROR). What Does IRR Tell You About a Project? WebWhat does the abbreviation IRR stand for? Meaning: irredeemable. onslow abc board