Crackles: Difference between revisions
From Food & Medicine Encyclopedia
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{{Infobox medical condition | |||
| name = Crackles | |||
| image = [[File:Crackles_pneumoniaO.ogg]] | |||
| caption = Audio recording of crackles in a patient with pneumonia | |||
| field = [[Pulmonology]] | |||
| synonyms = Rales | |||
| symptoms = Discontinuous, non-musical lung sounds | |||
| causes = [[Pneumonia]], [[pulmonary edema]], [[fibrosis]], [[bronchiectasis]] | |||
| risks = [[Smoking]], [[chronic obstructive pulmonary disease]] (COPD), [[heart failure]] | |||
| diagnosis = [[Auscultation]] with a [[stethoscope]] | |||
| differential = [[Wheezing]], [[stridor]], [[rhonchi]] | |||
| treatment = Addressing underlying cause (e.g., antibiotics for pneumonia, diuretics for heart failure) | |||
| frequency = Common in patients with respiratory conditions | |||
}} | |||
'''Crackles''' are the clicking, rattling, or crackling noises that may be made by one or both lungs of a human with respiratory disease during inhalation. They are often heard with a stethoscope during a physical examination. | '''Crackles''' are the clicking, rattling, or crackling noises that may be made by one or both lungs of a human with respiratory disease during inhalation. They are often heard with a stethoscope during a physical examination. | ||
== Causes == | == Causes == | ||
Crackles are caused by the "popping open" of small airways and alveoli collapsed by fluid, exudate, or lack of aeration during expiration. Some conditions that can cause crackles include [[pneumonia]], [[heart failure]], [[bronchitis]], and [[tuberculosis]]. | Crackles are caused by the "popping open" of small airways and alveoli collapsed by fluid, exudate, or lack of aeration during expiration. Some conditions that can cause crackles include [[pneumonia]], [[heart failure]], [[bronchitis]], and [[tuberculosis]]. | ||
== Types == | == Types == | ||
There are two types of crackles: fine and coarse. | There are two types of crackles: fine and coarse. | ||
* '''Fine crackles''' are soft, high-pitched, and very brief. This sound can be simulated by rolling a strand of hair between one's fingers near the ear. Their presence usually indicates an interstitial process, such as [[pulmonary fibrosis]] or [[congestive heart failure]]. | * '''Fine crackles''' are soft, high-pitched, and very brief. This sound can be simulated by rolling a strand of hair between one's fingers near the ear. Their presence usually indicates an interstitial process, such as [[pulmonary fibrosis]] or [[congestive heart failure]]. | ||
* '''Coarse crackles''' are louder, lower in pitch, and last longer than fine crackles. Their presence may indicate any of several diseases, including [[pneumonia]], [[chronic bronchitis]], or [[cystic fibrosis]]. | * '''Coarse crackles''' are louder, lower in pitch, and last longer than fine crackles. Their presence may indicate any of several diseases, including [[pneumonia]], [[chronic bronchitis]], or [[cystic fibrosis]]. | ||
== Diagnosis == | == Diagnosis == | ||
Crackles are often detected during medical examinations through auscultation with a stethoscope. Further diagnostic tests may be required to determine the underlying cause of the crackles, such as a [[chest X-ray]] or a [[pulmonary function test]]. | Crackles are often detected during medical examinations through auscultation with a stethoscope. Further diagnostic tests may be required to determine the underlying cause of the crackles, such as a [[chest X-ray]] or a [[pulmonary function test]]. | ||
== Treatment == | == Treatment == | ||
Treatment for crackles involves treating the underlying cause of the crackles. For example, if the crackles are caused by pneumonia, antibiotics may be prescribed. If the crackles are caused by heart failure, diuretics and other heart medications may be used. | Treatment for crackles involves treating the underlying cause of the crackles. For example, if the crackles are caused by pneumonia, antibiotics may be prescribed. If the crackles are caused by heart failure, diuretics and other heart medications may be used. | ||
== See also == | == See also == | ||
* [[Rales]] | * [[Rales]] | ||
* [[Wheezing]] | * [[Wheezing]] | ||
* [[Stridor]] | * [[Stridor]] | ||
== References == | == References == | ||
<references /> | <references /> | ||
{{stub}} | {{stub}} | ||
[[Category:Medical terminology]] | [[Category:Medical terminology]] | ||
[[Category:Respiratory system]] | [[Category:Respiratory system]] | ||
[[Category:Symptoms and signs: Respiratory system]] | [[Category:Symptoms and signs: Respiratory system]] | ||
Latest revision as of 13:46, 5 April 2025
Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
Founder, WikiMD Wellnesspedia &
W8MD's weight loss doctor NYC
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| Crackles | |
|---|---|
| File:Crackles pneumoniaO.ogg | |
| Synonyms | Rales |
| Pronounce | N/A |
| Specialty | N/A |
| Symptoms | Discontinuous, non-musical lung sounds |
| Complications | N/A |
| Onset | N/A |
| Duration | N/A |
| Types | N/A |
| Causes | Pneumonia, pulmonary edema, fibrosis, bronchiectasis |
| Risks | Smoking, chronic obstructive pulmonary disease (COPD), heart failure |
| Diagnosis | Auscultation with a stethoscope |
| Differential diagnosis | Wheezing, stridor, rhonchi |
| Prevention | N/A |
| Treatment | Addressing underlying cause (e.g., antibiotics for pneumonia, diuretics for heart failure) |
| Medication | N/A |
| Prognosis | N/A |
| Frequency | Common in patients with respiratory conditions |
| Deaths | N/A |
Crackles are the clicking, rattling, or crackling noises that may be made by one or both lungs of a human with respiratory disease during inhalation. They are often heard with a stethoscope during a physical examination.
Causes[edit]
Crackles are caused by the "popping open" of small airways and alveoli collapsed by fluid, exudate, or lack of aeration during expiration. Some conditions that can cause crackles include pneumonia, heart failure, bronchitis, and tuberculosis.
Types[edit]
There are two types of crackles: fine and coarse.
- Fine crackles are soft, high-pitched, and very brief. This sound can be simulated by rolling a strand of hair between one's fingers near the ear. Their presence usually indicates an interstitial process, such as pulmonary fibrosis or congestive heart failure.
- Coarse crackles are louder, lower in pitch, and last longer than fine crackles. Their presence may indicate any of several diseases, including pneumonia, chronic bronchitis, or cystic fibrosis.
Diagnosis[edit]
Crackles are often detected during medical examinations through auscultation with a stethoscope. Further diagnostic tests may be required to determine the underlying cause of the crackles, such as a chest X-ray or a pulmonary function test.
Treatment[edit]
Treatment for crackles involves treating the underlying cause of the crackles. For example, if the crackles are caused by pneumonia, antibiotics may be prescribed. If the crackles are caused by heart failure, diuretics and other heart medications may be used.
See also[edit]
References[edit]
<references />
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