what are diminished lung sounds?
528364
Absent or decreased sounds can mean: Air or fluid in or around the lungs (such as pneumonia, heart failure, and pleural effusion) Increased thickness of the chest wall. Over-inflation of a part of the lungs (emphysema can cause this) Reduced airflow to part of the lungs.
1058690
Bronchovesicular Sounds Inspiration to expiration periods are equal. These are normal sounds in the mid-chest area or in the posterior chest between the scapula. They reflect a mixture of the pitch of the bronchial breath sounds heard near the trachea and the alveoli with the vesicular sound.
1136877
This is also called the resting volume. Loss of lung elasticity due to emphysema in COPD reduces the lung recoil pressure. Consequently, FRC or resting volume occurs at a higher volume, which defines static hyperinflation (short-dashed lines).
1136053
['Tidal volume (VT). ... ', 'Minute volume (MV). ... ', 'Vital capacity (VC). ... ', 'Functional residual capacity (FRC). ... ', 'Residual volume. ... ', 'Total lung capacity.']
1423549
Bibasilar crackles are a bubbling or crackling sound originating from the base of the lungs. They may occur when the lungs inflate or deflate. They're usually brief, and may be described as sounding wet or dry. Excess fluid in the airways causes these sounds.
1100092
Atelectasis is the collapse or closure of a lung resulting in reduced or absent gas exchange. It is usually unilateral, affecting part or all of one lung. It is a condition where the alveoli are deflated down to little or no volume, as distinct from pulmonary consolidation, in which they are filled with liquid.
258829
Pleural rubs are discontinuous or continuous, creaking or grating sounds. The sound has been described as similar to walking on fresh snow or a leather-on-leather type of sound. Coughing will not alter the sound. They are produced because two inflamed surfaces are sliding by one another, such as in pleurisy.
197923
Consolidation refers to increased density of the lung tissue, due to it being filled with fluid and/or blood or mucus. Ask the patient to say the words: “ninety-nine” while you listen through the stethoscope. Normally the sound of “ninety-nine” will sound very faint and muffled.
247757
Crackles (Rales) Crackles are also known as alveolar rales and are the sounds heard in a lung field that has fluid in the small airways. The sound crackles create are fine, short, high-pitched, intermittently crackling sounds. ... It is commonly heard in the bases of the lung lobes during inspiration.
63327
['Snoring.', 'Pauses in breathing.', 'Restless sleep.', 'Snorting, coughing or choking.', 'Mouth breathing.', 'Bed wetting.', 'Sleep terrors.']
928159
Breathing and heart rates may slow. In fact, there may be times when the person's breathing becomes abnormal, known as Cheyne-Stokes breathing. Some people hear a death rattle, noisy breathing that makes a gurgling or rattling sound. The chest stops moving, no air comes out of the nose, and there is no pulse.
1115530
Muffled heart sounds result when fluid or tissue acts as a barrier between the heart and the stethoscope. For example, obesity can muffle heart sounds because the fat acts as an insulating layer, dampening sound so that it is difficult to appreciate on auscultation.
934071
Rales: Small clicking, bubbling, or rattling sounds in the lungs. They are heard when a person breathes in (inhales). They are believed to occur when air opens closed air spaces. Rales can be further described as moist, dry, fine, and coarse.
243595
Crackles (Rales) The cause of crackles can be from air passing through fluid, pus or mucus. It is commonly heard in the bases of the lung lobes during inspiration.
130538
Degrees of Hearing Impairment Normal hearing is in the range of 0 to 20 decibels. People with normal hearing are able to make out sounds as faint as human breathing, which measures about 10 decibels. Mild hearing loss ranges from 21 to 40 decibels. Moderate hearing loss ranges from 41 to 55 decibels.
673486
Adventitious breath sounds are abnormal sounds that are heard over a patient's lungs and airways. These sounds include abnormal sounds such as fine and coarse crackles (crackles are also called rales), wheezes (sometimes called rhonchi), pleural rubs and stridor.
1239092
Definition. The second heart sound (S2) is a short burst of auditory vibrations of varying intensity, frequency, quality, and duration. It has two audible components, the aortic closure sound (A2) and the pulmonic closure sound (P2), which are normally split on inspiration and virtually single on expiration.