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How to take your pulse - Mayo Clinic
2024年4月16日 · A pulse is the heart rate. It's the number of times the heart beats in one minute. The pulse can be measured using the radial artery in the wrist or the carotid artery in the neck. Heart rates vary from person to person. Knowing your …
Tachycardia - Symptoms and causes - Mayo Clinic
2023年12月15日 · Tachycardia is an increased heart rate for any reason. If a fast heart rate is caused by exercise or stress, it's called sinus tachycardia. Sinus tachycardia is a symptom, not a condition. Most heart conditions can lead to different forms of tachycardia. Irregular heart rhythms, called arrhythmias, are one cause.
Exercise intensity: How to measure it - Mayo Clinic
2023年8月25日 · This is your target heart rate at 70% intensity. Now multiply 96.5 by 0.85 (85%) to get 82, then add your resting heart rate of 80 to get 162.03. This is your target heart rate at 85% intensity. Your target heart rate zone for vigorous exercise is 148 to 162 beats per minute, rounded to whole numbers.
How fit are you? See how you measure up - Mayo Clinic
2024年1月18日 · The target heart rate zone is a heart rate range that gives your heart and lungs a good workout. This zone ranges from 50% to 85% of the maximum heart rate (MHR) for your age. Aim for 50% to 70% of MHR when you do moderately intense activities and 70% to 85% of MHR when you do vigorous activities.
Ejection fraction: An important heart test - Mayo Clinic
2025年1月29日 · Ejection fraction is a measurement of the percentage of blood leaving the heart each time it squeezes. When the heart squeezes, it's called a contraction. Ejection fraction is just one of many tests your healthcare professional may use to see how your heart works. The heart squeezes and relaxes ...
Mayo Clinic corrected QT interval (QTc) calculator - Medical ...
Worried about QT interval prolongation? This online evidence based resource will help guide you how to measure the QT interval and calculate the QTc value with an easy to use calculator which takes into account the patients underlying rhythm, gender and age.
How to measure your respiratory rate - Mayo Clinic
2020年3月23日 · Your respiratory rate is also known as your breathing rate. This is the number of breaths you take per minute. You can measure your breathing rate by counting the number of breaths you take over the course of one minute while …
Heart failure - Diagnosis and treatment - Mayo Clinic
2025年1月21日 · Ejection fraction is a measurement of the percentage of blood leaving your heart each time it squeezes. This measurement is taken during an echocardiogram. The result helps classify heart failure and guides treatment. An ejection fraction of 50% or higher is considered ideal. But you can still have heart failure even if the number is considered ...
Electrocardiogram (ECG or EKG) - Mayo Clinic
2024年4月2日 · The heart rate is the number of times the heart beats a minute. You can measure your heart rate by checking your pulse. But an ECG may be helpful if your pulse is difficult to feel or too irregular to count accurately. ECG results can help diagnose an unusually fast heart rate, called tachycardia, or an unusually slow heart rate, called ...
Tachycardia - Diagnosis and treatment - Mayo Clinic
2023年12月15日 · Slowing a fast heart rate. A fast heart rate may correct itself. But sometimes medicine or other treatments are needed to slow down the heartbeat. Ways to slow a fast heart rate include: Vagal maneuvers. Simple but specific actions such as coughing, bearing down as if passing stool or putting an ice pack on the face can help slow down the heart ...