Flashcards
Chronic Bronchitis
Flashcards do conjunto (10)
- 1Bronchitis is...An acute or chronic inflammation of the bronchi
- 2What is the prevalence of COPD530,000 Australian approx.
- 3What are three risk factors> 35
smoker
obese - 4What are the most common causes for acute/chronic bronchitisacute: viral/bacterial infections
chronic: cigarette smoke or other inhaled pathogen - 5The pathophysiology behind bronchitis...Irritants trigger a chronic inflammatory response in the bronchi - leads to vasodilation, congestion and oedema of the bronchial mucosa. Goblet cells increase in size and mucus glands increase in number = thick tenacious mucus produced in increasing amounts
Changes to bronchial squamous cells impair the ability to clear mucus
The combination of thickened and increased mucus production and inflammation narrows the airways causing obstruction of airflow.
This causes an imbalance in ventilation & perfusion = hypoxaemia, hypercapnia & eventually pulmonary hypertension - 6Symptoms- Productive mucopurulent cough lasting > 3 months + over 2 years
- Breathlessness on exertion
- Recurrent chest infections
- May display symptoms of right-sided heart failure - 7Resp assessment & vital signs?Resp assess: wheezing and rhonchi sounds
SpO2 = may be < 95%
RR may be > 20
BP may be ^ due to pulmonary HTN
HR may be increased - 8Rhonchi soundscontinuous low pitched, rattling lung sounds that often resemble snoring
- 9What other tests may be performed & what might they indicateRFTs may indicate v lung capacity
FBE - may indicate ^ RBC and haematocrit due to chronic hypoxaemia leading to inc. RBC synthesis
ABGs may indicate hypercapnia, hypoxaemia & respiratory acidosis - 10Medications?Salbutamol - fast acting relief
Ipratropium Bromide - long lasting anticholinergic agent
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- O usuário eliminou as informações de disciplina FlashCards sobre Chronic Bronchitis, criado por Usuário eliminado em 08-06-2018.
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- Criado por Em J · 7 jun 2018
- Copiado por Em J · 8 jun 2018
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