What does "Normal S2" mean in a report or doctor's letter? In our medical dictionary, you will find a patient-friendly explanation of the meaning of this medical term.
"Normal S2" refers to a specific sound that a doctor hears when listening to a person's heart with a stethoscope. The heart makes two main sounds, known as S1 and S2, which are caused by the heart valves closing. A "normal S2" means that the second heart sound is regular and healthy, indicating that the heart valves are functioning properly.
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