{"wikiid":417905,"langid":"en","namespace":"CATEGORY","title":"Stethoscope","revisionid":1378645,"contents_raw":"== Background and Identification ==\n\nPerhaps one of the most iconic of medical devices, the stethoscope is a diagnostic tool used to listen to sounds inside the human body.\n\nA modern stethoscope usually consists of flexible tubing connecting eartips (which are inserted into the practitioner\u2019s ears) to a chest piece or \u201chead\u201d that is placed against the patient\u2019s body. The head of a stethoscope can take numerous forms, but it commonly contains a flat, circular diaphragm that helps amplify sound. Dual-head stethoscopes have a larger enclosed drum-like diaphragm on one side and a smaller hollow cup-like bell on the other. The diaphragm is optimized for listening to higher-frequency sounds, while the bell is optimized for listening to lower-frequency sounds.\n\nThere are numerous types of stethoscopes, including:\n\n* ''Acoustic stethoscopes'': These operate by conducting sound waves directly from the head to the eartips through air-filled tubes. Sound volume is generally quite low.\n* ''Electronic stethoscopes'':  These operate by converting acoustic sound waves to electrical signals, which can then be electronically processed, amplified, digitized, and recorded. The chest piece often contains a microphone or piezoelectric crystal and earpieces may be wireless.\n\n== Additional Information ==\n\n* Wikipedia: [link|https:\/\/en.wikipedia.org\/wiki\/Stethoscope|Stethoscope]\n* Telegraph article: [link|https:\/\/www.telegraph.co.uk\/news\/health\/10592617\/A-history-of-the-stethoscope.html|A History of the Stethoscope]\n* Best Stethoscope Guide: [link|https:\/\/beststethoscopeguide.com\/types-of-stethoscopes\/|10 Types of Stethoscopes: What\u2019s the difference?]\n* Top Nurse Info: [link|https:\/\/topnurse.info\/blog\/how-to-use-a-stethoscope\/|How to Use a Stethoscope]","contents_json":{"type":"doc","content":[{"type":"heading","attrs":{"level":2},"content":[{"type":"text","text":"Background and Identification"}]},{"type":"paragraph","content":[{"type":"text","text":"Perhaps one of the most iconic of medical devices, the stethoscope is a diagnostic tool used to listen to sounds inside the human body."}]},{"type":"paragraph","content":[{"type":"text","text":"A modern stethoscope usually consists of flexible tubing connecting eartips (which are inserted into the practitioner\u2019s ears) to a chest piece or \u201chead\u201d that is placed against the patient\u2019s body. The head of a stethoscope can take numerous forms, but it commonly contains a flat, circular diaphragm that helps amplify sound. Dual-head stethoscopes have a larger enclosed drum-like diaphragm on one side and a smaller hollow cup-like bell on the other. The diaphragm is optimized for listening to higher-frequency sounds, while the bell is optimized for listening to lower-frequency sounds."}]},{"type":"paragraph","content":[{"type":"text","text":"There are numerous types of stethoscopes, including:"}]},{"type":"bulletList","attrs":[],"content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"type":"text","text":"Acoustic stethoscopes","marks":[{"type":"italic"}]},{"type":"text","text":": These operate by conducting sound waves directly from the head to the eartips through air-filled tubes. Sound volume is generally quite low."}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"type":"text","text":"Electronic stethoscopes","marks":[{"type":"italic"}]},{"type":"text","text":":  These operate by converting acoustic sound waves to electrical signals, which can then be electronically processed, amplified, digitized, and recorded. The chest piece often contains a microphone or piezoelectric crystal and earpieces may be wireless."}]}]}]},{"type":"heading","attrs":{"level":2},"content":[{"type":"text","text":"Additional Information"}]},{"type":"bulletList","attrs":[],"content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"type":"text","text":"Wikipedia: "},{"type":"text","marks":[{"type":"link","attrs":{"href":"https:\/\/en.wikipedia.org\/wiki\/Stethoscope","target":false}}],"text":"Stethoscope"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"type":"text","text":"Telegraph article: "},{"type":"text","marks":[{"type":"link","attrs":{"href":"https:\/\/www.telegraph.co.uk\/news\/health\/10592617\/A-history-of-the-stethoscope.html","target":false}}],"text":"A History of the Stethoscope"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"type":"text","text":"Best Stethoscope Guide: "},{"type":"text","marks":[{"type":"link","attrs":{"href":"https:\/\/beststethoscopeguide.com\/types-of-stethoscopes\/","target":false}}],"text":"10 Types of Stethoscopes: What\u2019s the difference?"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"type":"text","text":"Top Nurse Info: "},{"type":"text","marks":[{"type":"link","attrs":{"href":"https:\/\/topnurse.info\/blog\/how-to-use-a-stethoscope\/","target":false}}],"text":"How to Use a Stethoscope"}]}]}]}]},"contents_rendered":"<div class=\"clearer\"><\/div><div class=\"headerContainer\"><a class=\"selfLink\" href=\"#Section_Background_and_Identification\" title=\"Link to this section\" aria-hidden=\"true\" tabindex=\"-1\"><span    class=\"fa-svg-icon\"><svg width=\"16\" height=\"16\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 576 512\" overflow=\"visible\"><!--! Font Awesome Pro 7.3.1 by @fontawesome - https:\/\/fontawesome.com License - https:\/\/fontawesome.com\/license (Commercial License) Copyright 2026 Fonticons, Inc. --><path d=\"M427.5 88c-21.4 0-42.2 6.9-59.3 19.4-11.4-11.7-24.4-22.1-38.4-30.7 27-23.6 61.7-36.7 97.7-36.7 82 0 148.5 66.5 148.5 148.5 0 39.4-15.6 77.1-43.5 105l-79.1 79.1c-27.8 27.8-65.6 43.5-105 43.5-82 0-148.5-66.5-148.5-148.5 0-17.9 3.2-35.5 9.4-51.9 4.6-12.4 18.5-18.7 30.9-14.1S259 220 254.4 232.4c-4.2 11.1-6.4 23-6.4 35.2 0 55.5 45 100.5 100.5 100.5 26.6 0 52.2-10.6 71-29.4l79.1-79.1C517.4 240.6 528 215.1 528 188.5 528 133 483 88 427.5 88zm-200 56c-26.6 0-52.2 10.6-71 29.4L77.4 252.5c-18.8 18.8-29.4 44.4-29.4 71 0 55.5 45 100.5 100.5 100.5 21.4 0 42.2-6.9 59.3-19.4 11.4 11.8 24.4 22.1 38.4 30.7-27 23.6-61.7 36.7-97.7 36.7-82 0-148.5-66.5-148.5-148.5 0-39.4 15.6-77.1 43.5-105l79.1-79.1c27.8-27.8 65.6-43.5 105-43.5 82 0 148.5 66.5 148.5 148.5 0 17.9-3.2 35.5-9.4 51.9-4.6 12.4-18.5 18.7-30.9 14.1S317 292 321.6 279.6c4.2-11.1 6.4-23 6.4-35.1 0-55.5-45-100.5-100.5-100.5z\"\/><\/svg><\/span><\/a><h2 id=\"Section_Background_and_Identification\" class=\"header\">Background and Identification<\/h2><\/div>\n\n<p>Perhaps one of the most iconic of medical devices, the stethoscope is a diagnostic tool used to listen to sounds inside the human body.<\/p>\n\n<p>A modern stethoscope usually consists of flexible tubing connecting eartips (which are inserted into the practitioner\u2019s ears) to a chest piece or \u201chead\u201d that is placed against the patient\u2019s body. The head of a stethoscope can take numerous forms, but it commonly contains a flat, circular diaphragm that helps amplify sound. Dual-head stethoscopes have a larger enclosed drum-like diaphragm on one side and a smaller hollow cup-like bell on the other. The diaphragm is optimized for listening to higher-frequency sounds, while the bell is optimized for listening to lower-frequency sounds.<\/p>\n\n<p>There are numerous types of stethoscopes, including:<\/p>\n\n<ul><li><em>Acoustic stethoscopes<\/em>: These operate by conducting sound waves directly from the head to the eartips through air-filled tubes. Sound volume is generally quite low.<\/li><li><em>Electronic stethoscopes<\/em>:  These operate by converting acoustic sound waves to electrical signals, which can then be electronically processed, amplified, digitized, and recorded. The chest piece often contains a microphone or piezoelectric crystal and earpieces may be wireless.<\/li><\/ul>\n\n<div class=\"clearer\"><\/div><div class=\"headerContainer\"><a class=\"selfLink\" href=\"#Section_Additional_Information\" title=\"Link to this section\" aria-hidden=\"true\" tabindex=\"-1\"><span    class=\"fa-svg-icon\"><svg width=\"16\" height=\"16\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 576 512\" overflow=\"visible\"><!--! Font Awesome Pro 7.3.1 by @fontawesome - https:\/\/fontawesome.com License - https:\/\/fontawesome.com\/license (Commercial License) Copyright 2026 Fonticons, Inc. --><path d=\"M427.5 88c-21.4 0-42.2 6.9-59.3 19.4-11.4-11.7-24.4-22.1-38.4-30.7 27-23.6 61.7-36.7 97.7-36.7 82 0 148.5 66.5 148.5 148.5 0 39.4-15.6 77.1-43.5 105l-79.1 79.1c-27.8 27.8-65.6 43.5-105 43.5-82 0-148.5-66.5-148.5-148.5 0-17.9 3.2-35.5 9.4-51.9 4.6-12.4 18.5-18.7 30.9-14.1S259 220 254.4 232.4c-4.2 11.1-6.4 23-6.4 35.2 0 55.5 45 100.5 100.5 100.5 26.6 0 52.2-10.6 71-29.4l79.1-79.1C517.4 240.6 528 215.1 528 188.5 528 133 483 88 427.5 88zm-200 56c-26.6 0-52.2 10.6-71 29.4L77.4 252.5c-18.8 18.8-29.4 44.4-29.4 71 0 55.5 45 100.5 100.5 100.5 21.4 0 42.2-6.9 59.3-19.4 11.4 11.8 24.4 22.1 38.4 30.7-27 23.6-61.7 36.7-97.7 36.7-82 0-148.5-66.5-148.5-148.5 0-39.4 15.6-77.1 43.5-105l79.1-79.1c27.8-27.8 65.6-43.5 105-43.5 82 0 148.5 66.5 148.5 148.5 0 17.9-3.2 35.5-9.4 51.9-4.6 12.4-18.5 18.7-30.9 14.1S317 292 321.6 279.6c4.2-11.1 6.4-23 6.4-35.1 0-55.5-45-100.5-100.5-100.5z\"\/><\/svg><\/span><\/a><h2 id=\"Section_Additional_Information\" class=\"header\">Additional Information<\/h2><\/div>\n\n<ul><li>Wikipedia: <a href=\"https:\/\/en.wikipedia.org\/wiki\/Stethoscope\">Stethoscope<\/a><\/li><li>Telegraph article: <a href=\"https:\/\/www.telegraph.co.uk\/news\/health\/10592617\/A-history-of-the-stethoscope.html\" rel=\"nofollow noopener noreferrer\">A History of the Stethoscope<\/a><\/li><li>Best Stethoscope Guide: <a href=\"https:\/\/beststethoscopeguide.com\/types-of-stethoscopes\/\" rel=\"nofollow noopener noreferrer\">10 Types of Stethoscopes: What\u2019s the difference?<\/a><\/li><li>Top Nurse Info: <a href=\"https:\/\/topnurse.info\/blog\/how-to-use-a-stethoscope\/\" rel=\"nofollow noopener noreferrer\">How to Use a Stethoscope<\/a><\/li><\/ul>","linked_wikis":[],"can_edit":true,"available_langids":["en","de","es","fr","it","jp","ko","nl","pt","ru","tr","zh"],"ancestors":[{"dataType":"wiki","wikiid":417929,"langid":"en","title":"Audiometry","display_title":"Audiometry","namespace":"CATEGORY","summary":"Repair information pertaining to devices involved in the practice of Audiometry, the science of measuring hearing acuity.","url":"https:\/\/www.ifixit.com\/Device\/Audiometry","text":"Repair information pertaining to devices involved in the practice of Audiometry, the science of measuring hearing 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