Bronchiectasis, Biology

Assignment Help:

Bronchiectasis:

Bronchiectasis literally means abnormal dilation of bronchi. It is a chronic  inflammatory condition which is characterised  by permanent dilation of bronchi and bronchioles due to obstruction and/or infection. As a result of  this there is a cavitation of bronchial and peribronchial tissue. Emphysema and pneumonia usually accompany bronchiectasis. 

Etiology:

Most cases follow recurrent episodes of  respiratory infections, obstruction due to foreign body, collection  of thick mucus as in bronchial asthma, chronic bronchitis, and cystic fibrosis. It could be caused due to congenital disorders of bronchi such as bronchomalacia, communicating  type of bronchial cyst or sequestrated lung. 

Pathogenosis:

Infection damages the bronchial wall and causes segmented areas of collapse. Similarly  the inhalation  of foregin body, aspiration of food or mucus plug in bronchus may occlude the bronchial lumen and cause segmental areas of collapse. The bronchi are dilated due to negative pressure by the collapsed segment and may show cylinderical,  fusiform or saccular dilatation. If the occlusion is  relieved before the stagnant secretions are infected and the bronchial wall is damaged, the bronchiectasis  the reversible. 

Nursing Assessment 

Child will present with persistant or recurrent cough with copious mucopurulent expectoration i.e. cough is more marked in some positions because of irritation due to infected secretions draining  into fresh areas of lung. Likewise the cough is more marked when child wakes up in the morning due to change of posture. Infants and young children often have significant wheezing. There may be haemoptysis and fever, poor general health with recurrent infection, loss of appetite,  irritability and poor weight gain.  


Related Discussions:- Bronchiectasis

Nuclear run-on, Nuclear run-on is a technique used to estimate the relativ...

Nuclear run-on is a technique used to estimate the relative rate of the transcription of a given gene, as opposed to steady-state level of the mRNA transcript (which is influenced

What happens at the molecular level, An enzyme isolated from a mutant bacte...

An enzyme isolated from a mutant bacterium grown at 20 degrees celsius works in a test tube at 20 degrees celsius but not at 37 degrees celsius( 37 degrees celsius is the temperatu

Explain about suspensions, Explain about Suspensions Sol is a colloidal...

Explain about Suspensions Sol is a colloidal system, in which solid particles are dispersed in a liquid. When the particles of a solid are separated into large aggregates of pa

Electron acceptor, Electron acceptor is a molecule which forms the part of...

Electron acceptor is a molecule which forms the part of the electron transport system which transfers electrons ejected by chlorophyll during the process of photosynthesis. Part o

Describe pathophysiology of tetralogy of fallots, Describe Pathophysiology ...

Describe Pathophysiology of tetralogy of fallots ? The PS causes concentric hypertrophy of right ventricle without enlargement. The right ventricular pressure are equal to or h

Growth and development of multi cellular organisms, Growth and development ...

Growth and development of multi cellular organisms The normal growth and development in all multicellular organisms occur in a programmed manner. The new born babies have

Explain the function of myosin and albumin, What are respectively some rema...

What are respectively some remarkable functions of myosin, CD4, albumin, keratin, immunoglobulin, reverse transcriptase, hemoglobin and insulin? Myosin is a protein that when a

Brodmann areas, One way that the cortex has been parcellated is based on fi...

One way that the cortex has been parcellated is based on fine-grained anatomical differences in the composition of the cortical layers: their thickness and types of neurons that ar

Ice age, Ice age is an interval of geologic time between 2 million and 10,...

Ice age is an interval of geologic time between 2 million and 10,000 years ago during that period the northern hemisphere experienced several episodes of continental glacial advan

Veins - circulation, Normal 0 false false false EN-IN ...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd