
Heart rate: What's normal? - Mayo Clinic
Oct 22, 2025 · A normal resting heart rate for adults ranges from 60 to 100 beats per minute. A heart rate above or below that may signal a health condition.
Tachycardia - Symptoms and causes - Mayo Clinic
Dec 15, 2023 · Tachycardia (tak-ih-KAHR-dee-uh) is the medical term for a heart rate over 100 beats a minute. Many types of irregular heart rhythms, called arrhythmias, can cause tachycardia. A fast …
Heart arrhythmia - Symptoms and causes - Mayo Clinic
Apr 23, 2026 · Soon the person's breathing and pulse will stop. Ventricular fibrillation is an emergency that needs medical help right away. It's the most frequent cause of sudden cardiac death. If a person …
How to take your pulse - Mayo Clinic
Apr 6, 2026 · Taking your pulse using your radial artery Use the tips of your index and middle fingers to feel the pulse in your radial artery. This is the area between your wrist bone and the tendon on the …
Low blood pressure (hypotension) - Symptoms and causes
Jun 13, 2024 · Rapid, shallow breathing. Weak and rapid pulse. When to see a doctor If you have symptoms of extreme low blood pressure or shock, call 911 or your local emergency number. Most …
Cardiopulmonary resuscitation (CPR): First aid - Mayo Clinic
Mar 26, 2026 · Cardiopulmonary resuscitation (CPR) is an emergency treatment that's done when someone's breathing or heartbeat has stopped. For example, when someone has sudden cardiac …
Pulse pressure: An indicator of heart health? - Mayo Clinic
Aug 18, 2023 · Checking your pulse pressure may help your care team predict your risk of heart and blood vessel events, such as heart attacks and strokes. A pulse pressure greater than 60 is a risk …
Low blood oxygen (hypoxemia) - Mayo Clinic
Sep 30, 2005 · A medical device that clips to the finger, called a pulse oximeter, measures oxygen saturation. Healthy pulse oximeter values range from 95% to 100%. Values under 90% are low. …
Supraventricular tachycardia - Symptoms and causes - Mayo Clinic
Mar 7, 2024 · The symptoms can include sweating, poor feeding, a change in skin color and a rapid pulse. If your infant or young child has any of these symptoms, talk with a healthcare professional. …
Electrocardiogram (ECG or EKG) - Mayo Clinic
Apr 2, 2024 · An electrocardiogram (ECG or EKG) is a quick test to check the heartbeat. It records the electrical signals in the heart. Test results can help diagnose heart attacks and irregular heartbeats, …