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Rales can also be described as moist, dry, fine, and coarse. [9] Rhonchi are coarse rattling respiratory sounds, usually caused by secretions in bronchial airways. The sounds resemble snoring. "Rhonchi" is the plural form of the singular word "rhonchus". [8] Stridor: Wheeze-like sound heard when a person breathes.
A wheeze is a clinical symptom of a continuous, coarse, whistling sound produced in the respiratory airways during breathing. [1] For wheezes to occur, part of the respiratory tree must be narrowed or obstructed (for example narrowing of the lower respiratory tract in an asthmatic attack), or airflow velocity within the respiratory tree must be heightened.
The terminology of rales and rhonchi in English remained variable until 1977, when a standardization was established by the American Thoracic Society and American College of Chest Physicians. [6] As a result, the term râles was abandoned, and crackles became its recommended substitute.
A wheeze is the result of narrowed airways. Common causes include asthma and emphysema. [20] Rhonchi (an increasingly obsolete term) characterised by low pitched, musical bubbly sounds heard on inspiration and expiration. Rhonchi are the result of viscous fluid in the airways. [21] Crackles or rales. Intermittent, non-musical and brief sounds ...
Stridor (from Latin 'creaking/grating noise') is an extra-thoracic high-pitched breath sound resulting from turbulent air flow in the larynx or lower in the bronchial tree. It is different from a stertor, which is a noise originating in the pharynx. Stridor is a physical sign which is caused by a narrowed or obstructed airway.
Stertor (from Latin stertere 'to snore') is a term first used in 1804 [2] to describe a noisy breathing sound, such as snoring. [3] [4] It is caused by partial obstruction of the upper airways, at the level of the nasopharynx or oropharynx.
Respiratory symptoms and signs that may be present include shortness of breath, wheezes, or stridor. [4] The wheezing is typically caused by spasms of the bronchial muscles [19] while stridor is related to upper airway obstruction secondary to swelling. [18] Hoarseness, pain with swallowing, or a cough may also occur. [15]
An adult cat having a coughing fit. Feline asthma occurs with the inflammation of the small passageways of a cat's lungs. During the attack the lungs will thicken and constrict, making it difficult for the cat to breathe. Mucus may be released by the lungs into the airway, resulting in fits of coughing and wheezing. Some cats experience a less ...