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the diagnostic technique in medicine of listening to the various internal sounds made by the body, usually with the aid of a stethoscope
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



one of the basic methods of examining internal organs by listening to the sound phenomena produced in them. Listening to the heart was first introduced in the second century A.D. by the Greek physician Aretes. The French doctor R. Laënnec (1819) developed the modern method of auscultation by employing for this purpose a “medical tube,” or stethoscope. More frequently a phonen-doscope is used for auscultation. This instrument is a hollow capsule with a sound-transmitting diaphragm that is placed against the body of a patient; rubber tubes connect it to the doctor’s ears.

During auscultation of the lungs one listens for the respiratory noises and the different rales that are characteristic of particular diseases. From the variation of the cardiac tones and the occurrence of noises, the condition of cardiac activity and presence of heart diseases can be ascertained. Arteries may be listened to in order to determine changes in the blood pressure. The presence of peristalsis of the stomach or intestines can be established by auscultation of the abdomen, and in pregnancy the heartbeat of the fetus can be detected.

In veterinary science, auscultation is employed in the diagnosis of diseases of the cardiovascular, respiratory, and gastrointestinal systems of animals. In direct auscultation the investigator places his ear against a sheet or a towel covering the portion of an animal’s body being examined; indirect auscultation is carried out by means of a stethoscope or phonendoscope. Instrumental auscultation was first employed in veterinary science by the Hungarian scientist J. Marek in 1901. In the USSR the auscultation method was perfected by the veterinary scientists K. M. Gol’tsman, N. P. Rukhliadev, A. V. Sinev, A. R. Evgrafov, G. V. Domrachev, V. I. Zaitsev, P. S. Ionov, and I. G. Sharabrin.


Strazhesko, N. D. Izbrannye trudy, vol. 1. Kiev, 1955.
Gubergrits, A. Ia. Neposredstvennoe issledovanie bol’nogo. Izhevsk, 1956.
Klinicheskaia diagnostika vnutrennikh boleznei domashnikh zhivot-nykh. Moscow, 1958.
Sudakov, N. A. “Auskultatsiia.” In Veterinarnaia entsiklopediia, vol. 1. Moscow, 1968.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.


The act of listening to sounds from internal organs, especially the heart and lungs, to aid in diagnosing their physical state.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
GUIDELINES FOR METHODS OF INTRAPARTUM FETAL HEART RATE MONITORING Surveillance Low-Risk High-Risk Pregnancies pregnancies Acceptable methods Intermittent auscultation Yes Yes (a) Continuous electronic monitoring Yes Yes (b) (internal or external) Evaluation intervals First-Stage labor (active) 30 min 15 min (a,b) Second-stage labor 15 min 5 min (a,c) (a) Preferably before, during, and after a uterine contraction.
Cardionics offers auscultation products and services through the development of interactive, and experiential systems that integrate seamlessly into classroom, clinical, and telehealth applications.
Unilateral chest rise, auscultation and airway pressure assessment were the primary and initial assessment tools for confirmation of DLT position.
Total ten cases of generalized lung infection were treated and divided on the basis of lung auscultation into following groups-
All swallowing examinations were recorded using cervical auscultation module available in the Digital Swallowing Workstation (Kay Pentax Corporation, Lincoln Park, NJ) connected to the swallowing signal lab.
Group A includes those monitored with admission CTG and Group B includes those monitored with Intermittent Auscultation (IA).
This guide explains the auscultation of the heart and lungs in the evaluation of canine and feline cardiovascular systems, with an emphasis on heart sounds, murmurs, and the auscultatory characteristics of common arrhythmias and lung sounds.
Bilateral auscultation of chest and palpation of symmetrical chest movements
Objective studies on auscultation have made some progress with the recent developments in computer and signal processing technologies [2].
The accuracy by which auscultation of the chest, as part of the standard veterinary examination, can detect, localise, and differentiate lung pathology has been questioned following comparison of adventitious sounds auscultated over normal lung areas and lesions of OPA [6].
Auscultation alone will not differentiate the cause of the murmur and additional diagnostics will be required.
Auscultation is one of the most important direct physical assessment practices the bedside clinician can perform.