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 …

In a healthy adult, the heart makes two sounds, commonly described as ‘lub’ and ‘dub.’ The third and fourth sounds may be heard in some healthy people, but can indicate impairment of the …

Sep 3, 2025 · Listening to the heart with a stethoscope—known as auscultation —is one of the oldest and most reliable diagnostic tools in medicine. By interpreting heart sounds, clinicians …

When a stethoscope is placed on the chest over different regions of the heart, four basic heart sounds (S 1, S 2, S 3 and S 4) can be heard (listening to heart sounds is called cardiac …

The clinician focuses attention sequentially on each phase of the cardiac cycle, noting each heart sound and murmur. Intensity, pitch, duration, and timing of the sounds and the intervals …

Feb 13, 2025 · Heart sounds are one tool providers use to assess heart health. Learn about systolic, diastolic, and S1 to S4 heart sounds in this article.

Dec 14, 2022 · On this website, we provide lessons, reference guides and quizzes for cardiac auscultation of murmurs and other heart sounds. This includes gaining an understanding of …

Nov 10, 2022 · Learn to auscultate heart and lung sounds by using our lessons, quizzes and reference guides. Content includes text, audio, video and quizzes.

Heart sound, audible rhythmic vibrations in the heart, typically heard through a stethoscope pressed to the chest or back during the diagnostic procedure known as auscultation.

Heart sounds are the noises generated by the beating heart and the resultant flow of blood through it. Specifically, the sounds reflect the turbulence created when the heart valves snap …