bronchoalveolar lavage

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Related to bronchoalveolar lavage: Induced Sputum


1. irrigation or washing out of an organ or cavity, as of the stomach or intestine.
2. to wash out, or irrigate.
bronchoalveolar lavage a technique by which cells and fluid from bronchioles and lung alveoli are removed for diagnosis of disease or evaluation of treatment; a bronchoscope is wedged into a bronchus and sterile saline is pumped in and then removed along with the fluid and cells to be analyzed.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

bronchoalveolar lavage (BAL),

procedure for collecting the cellular milieu of the alveoli (for example, microorganisms, types of inflammatory cells) by use of a bronchoscope or other hollow tube through which saline is instilled into distal bronchi and then withdrawn.
Farlex Partner Medical Dictionary © Farlex 2012

bronchoalveolar lavage

A “wash” of the upper respiratory tract mucosa to obtain cells for evaluating inflammation, infection or cancer.

Utility of BAL 
• Cytologic analysis;
• Analysis of CD4:CD8 ratio; and rarely also
• To obtain cells for gene rearrangement to diagnose lymphoma.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

bronchoalveolar lavage

Cytology A 'wash' of the upper respiratory tract to obtain cells for evaluating inflammation or cancer of lungs; BAL material is used for
1. Cytologic analysis.
2. Analysis of CD4:CD8 ratio and, rarely.
3. To obtain cells for gene rearrangement, ie Southern blot hybridization, to diagnose lymphoma.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

bron·cho·al·ve·o·lar la·vage

(BAL) (brong'kō-al-vē'ŏ-lăr lă-vahzh')
A procedureperformed using fiberoptic bronchoscopy, during which a distal airway is occluded and liquid is then introduced into the airway and recovered for examination of cell types and microorganisms.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

Bronchoalveolar lavage

A way of obtaining a sample of fluid from the airways by inserting a flexible tube through the windpipe. Used to diagnose the type of lung disease.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Molecular and culture-based bronchoalveolar lavage fluid testing for the diagnosis of Cytomegalovirus pneumonitis.
Detection of GM in bronchoalveolar lavage (BAL) fluid has been advocated as a sensitive test for diagnosing of invasive aspergillosis, both in hematology and non-hematology patients, including solid-organ transplant recipients and critically ill patients.probabilities [30].
Concentrations of CC chemokines CCL2, CCL4, CCL11, CCL13, CCL17, CCL22, and CCL26 in bronchoalveolar lavage fluid
(a) Increased levels of CCL2 (MCP-1/JE) were noted in nose, lung, nasal lavage fluid (NAL), and bronchoalveolar lavage fluid (BAL) in chronic intermittent hypoxia (CIH).
The diagnosis of PH is confirmed by presence of hemosiderin-bearing macrophages in bronchoalveolar lavage fluids or at lung biopsy materials, without underlying vasculitis, nonspecific granulomatous inflammation, or deposits of immunoglobulin [5].
Total Protein Content in Bronchoalveolar Lavage Fluid.
Bronchoalveolar lavage fluid (BALF) was taken from the right upper and mid lobes and a transbronchial biopsy was taken from the right upper lobe anterior segment.
Subsequently, we unexpectedly isolated MAC from bronchoalveolar lavage but, because of the patient's improvement, MAC treatment was not initiated until repeated bronchoscopy showed a positive histology and culture.
However, since a negative result in this kind of analysis does not rule out TB, a sample of bronchoalveolar lavage was analyzed according to the Ziehl-Neelsen (BAAR) protocol, with a positive result for M.
Therefore, several strategies such as clinical evaluation, respiratory function tests, exercise tests, imaging studies, bronchoalveolar lavage (BAL), and certain serum markers are commonly utilized for the follow-up assessment of patients with CTD.