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In healthy adults, there are two normal heart sounds, often described as a lub and a dub that occur in sequence with each heartbeat. These are the first heart sound (S 1) and second heart sound (S 2 ), produced by the closing of the atrioventricular valves and semilunar valves, respectively.
A normal heartbeat has two sounds, a lub (sometimes called S1) and a dub (S2). These sounds are caused by the closing of valves inside your heart. If there are problems in your heart, there may be ...
It’s the most common arrhythmia. Atrial fibrillation, or AFib, occurs when many unstable electrical impulses misfire, causing your atria to quiver erratically. AFib causes your heart to beat ...
Abnormal heart sounds are called heart murmurs. A heart murmur may occur in between regular heartbeats and sound like one of the following: a rasping; a whooshing; a blowing; Two types of heart ...
Heart murmur sounds. A normal heartbeat makes a lub-dub sound. When you have a heart murmur, your doctor will hear a whooshing or humming sound between beats. The abnormal flow of blood through ...
The normal rhythm of your heart should sound or feel like a steady drum, a consistent “lup-dup.” If you have an irregular rhythm, it could feel like your heart is fluttering or racing.
In a normal heart rhythm, your heartbeat is steady and even. But sometimes, an extra heartbeat can disrupt the rhythm. A pattern of three beats is called trigeminy, and it happens in many healthy ...
A medical monitoring device displaying a normal human heart rate. Heart rate (or pulse rate) [1] is the frequency of the heartbeat measured by the number of contractions of the heart per minute ( beats per minute, or bpm). The heart rate varies according to the body's physical needs, including the need to absorb oxygen and excrete carbon dioxide.
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