What is the hertz heard in stethoscope?

The hertz (Hz) heard in a stethoscope refers to the frequency of sound waves produced by the heart and lungs, typically measured in cycles per second. Normal heart sounds range from 20 to 200 Hz, while lung sounds can vary widely, with some frequencies below 100 Hz and others above 1,000 Hz. Stethoscopes amplify these frequencies, allowing healthcare providers to listen for abnormalities such as murmurs or irregular breath sounds. Understanding these frequencies helps in diagnosing various medical conditions.