Resp Flashcards
(45 cards)
IPF Ix
High res CT gold standard - ground glass then honeycombing later stage
Spirometry restrictive picture with reduced gas transfer
IPF Mx
Mostly pulmonary rehab
Pirfenidone in some pts
Supplementary O2 and lung transplant
Prognosis 3-4yrs life expectancy
COPD stages
All stages should have post-bronchodilator FEV1/FVC<0.7
Stage 1 - FEV1 >80% of predicted (with sx) Mild
2 - 50-79% Moderate
3 - 30-49% Severe
4 - <30% Very severe
Granulomatosis with polyangiitis features
Renal impairment (rapidly progressive GN)
Haemoptysis
Flat/saddle nose
What is sarcoidosis
Multisystem disorder with unknown cause
Multiple caseating granulomas
Sarcoidosis presentation
Acute - b/l hilar lymphadenopathy, swinging fever, polyarthralgia, erythema nodosum
Chronic - Dyspnoea, chronic cough, weight loss
Uveitis
Lupus pernio, b/l parotid enlargement, facial nerve palsy
Hypercalcaemia (macrophages in granulomas increase conversion of vit D to active)
What is Lofgren’s syndrome
Sarcoidosis form with:
BHL, fever, erythema nodosum, polyarthralgia
Very good prognosis
What is Heerfordt’s syndrome
Oveoparotid fever
Parotid enlargement, fever and uveitis 2ry to sarcoidosis
Indications for chest tube in pleural effusion
Turbid/purulent
pH<7.2 with suspected infection
Pleural culture +ve
Pleural fluid low glucose causes
TB
RA
Pleural fluid raised amylase
Pancreatitis
Oesophageal perf
Low C3/C4 in pleural fluid
SLE
Pleural fluid heavily blood stained
Mesothelioma
PE
TB
Recurrent pleural effusions Mx
Repeated aspiration
Indwelling catheter
Pleurodesis
Medications for sx e.g. opioids dyspnoea
Pleural fluid transudate vs exudate
Protein <25 is trans, >35 is ex
25-35, Light’s criteria (if 1 met then exudate):
Pleural fluid protein >0.5x serum
Pleural LDH >0.6x serum
Pleural LDH >2/3 upper limit of normal serum
Lung Ca 2ww indications
> 40yrs and ever smoked +1 or 2 from below:
Cough
Fatigue
SOB
Chest pain
Weight loss
Appetite loss
> 40yrs +:
Persistent/recurrent chest infection
Clubbing
Supraclavicular lymphadenopathy/persistent cervical
Thrombocytosis
Chest signs of lung Ca
OSA diagnosis
Polysomnography
OSA Mx
Weight loss
CPAP for moderate-severe
Intraoral devices e.g. mandibular advancement if not tolerating CPAP
Inhaled ICS benefit in COPD
Reduced frequency of exacerbations
COPD steroid responsiveness features
Asthma/atopy
Higher eosinophil count
400ml FEV1 variation
20% diurnal PEF variation
COPD Abx prophylaxis prerequisites
Azithromycin if >3 exacerbations in year with 1 hospital
Non-smoker
CT thorax r/o bronchiectasis
Sputum culture r/o atypicals/TB
LFTs
ECG for QT
COPD improved prognosis
Stop smoking
Lung volume reduction surgery
LTOT
LTOT indications
pH<7.3
pH7.3-8 with:
2ry polycythaemia
Peripheral oedema
Pulmonary HTN
How long per day for LTOT
> 15hrs