respiratory Flashcards
how is asthma investigated?
spirometry
will show an obstructive pattern with reduced FEV1:FVC ratio (decreased FEV1 and a normal FEV)
what is the long term management of asthma?
- SABA and ICS (beclomethasone)
- SABA + ICS + LABA
- add LTRA/theophylline/LAMA
- increase ICS
how is an acute presentation of asthma managed?
OSHITME
oxygen
salbutamol (neb)
hydrocortisone IV or oral prednisolone
ipratropium (neb)
theophylline (oral)
magnesium sulphate (IV)
escalate
what is a genetic risk factor for COPD?
alpha 1 antitrypsin deficiency
what is the consequence of COPD?
chronic bronchitis and emphysema
how is COPD investigated at the point of diagnosis?
spirometry
obstructive pattern (decreased FEV1, FVC normal)
how is COPD investigated during an exacerbation?
CXRAY
sputum sample
FBC
what is the long term management of COPD?
SABA/SAMA
if poor response then- LABA+LAMA
if good response then- LABA+ICS
how is an exacerbation of COPD managed at home?
oral prednisolone
increase SABA/SAMA dose
abx
how is an exacerbation of COPD managed in hospital?
ISOAP
ipratropium
salbutamol
oxygen
amoxicillin (or doxy if pen allergic)
prednisolone
what is pulmonary fibrosis?
progressive interstitial fibrosis of unknown cause
what are the signs and symptoms of pulmonary fibrosis?
progressive dyspnoea
dry cough
weight loss
fatigue
malaise
clubbing
cyanosis
bilateral fine inspiratory crackles
what are the investigations for pulmonary fibrosis?
CXRAY
- bilateral infiltrates
- reduced lung volume
CT
- ground glass appearance
PFTs
-restrictive pattern
how is pulmonary fibrosis managed?
supportive measures
antifibrotic drugs (eg. perfenidone)
what is bronchiectasis?
irreversible and abnormal dilation of the bronchial tree
what can cause bronchiectasis?
CF (most common in developed countries)
COPD
lung infection
idiopathic (50% of cases)
what are the most common strains of bacteria that can cause bronchiectasis?
H influenzae
pseudomonas aeruginosa
how does bronchiectasis present?
chronic productive cough
fever and malaise
“flecks” of haemoptysis
clubbing
course crackles