Respiratory Flashcards
Allergic bronchopulmonary aspergillosis presentation
Young male with bronchiectasis and eosinophilia
Management of allergic bronchopulmonary aspergillosis
oral glucocorticods and itraconazole can b used as a second line agent
Eosinophilic granulomatosis with polyangitis
AKA Churg-Strauss
Define eoshinophilic granulomatosis with polyangitis
pANCA associated small vessel vasculitis
Features of eosinophilic granulomatosis with polyangitis
asthma, blood eosinophilia, paranasal sinusitis, mononeuritis multiplexr
Small cell carcinoma presentation
Clubbing
Hyponatraemia
Lambert-Eaton syndrome
OSA: investigations
Epworth sleep study
Multiple sleep latency test
Diagnostic test for OSA
Sleep studies (polysomnography)
OSA: management
Weight loss
Stop smoking
CPAP
DVLA should be informedP
Paraneoplatic syndrome: small cell
ADH
ACTH (Cushings)
Lambert Eaton
Paraneoplastic syndrome: squamous cell
PTHpr release
Clubbing
Hypertrophic pulmonary osteoarthropathy
Hyperthyroidism
Paraneoplastic syndrome: adenocarcinoma
Gynaecomastia
HPOA (note seen more in SCC)
LTOT criteria COPD
Can increase survival
pO2 <7.3 or
pO2 7.3-8.0 and secondary polycythaemia, nocturnal hypoxia, peripheral oedema, pulmonary hypertension
Sarcoidosis staging
Stage 0: no CXR changes
Stage 1: bialteral hilar lymphadenopathy
Stage 2: BHL + infiltrates
Stage 3: infiltrates
Stage 4: fibrosis
Investigations for sarcoid
ACE levels are high
CXR - bilateral hilar lymphadenopathy
Hypercalcaemie, ESR raised
Non-caseating granulomas
Lights criteria for a pleural effusion
when protein is 25-30g/L
Exudate pleural effusion criteria
> 30g/L
Transudate pleural effusion criteria
<30g/L
Exudate is likely when
Pleural fluid protein divided by serum protein >0.5
Pleural fluid LDH divided by serum LDH >0.6
Pleural fluid LDH more than two-thirds the upper limits of normal serum LDH
Low glucose on pleural effusion
RA, TB
Raised amylase
Pancreatitis, oesophageal pancreatitis
Heavy blood staining
mesothelioma, PE, TB
Pleural effusion cloudy/turbid
Need to put in a chest drain
Clear pleural fluid but pH <7.2 mx
Need to insert a chest drain
Management of recurrent pleural effusion
- Recurrent aspiration
- Pleurodesis
- Indwelling pleural catheter
- Drug management to alleviate symptoms e.g. opioids to relieve dyspnoea
What can montelukast uncover
Eosinophilic granulomatosis with polyangitis
ARDS diagnosis
CXR and ABG
Criteria for ARDS
- Acute onset (within 1 week of a known risk factor)
- Pulmonary oedema: bilateral infiltrates on chest x-ray (‘not fully explained by effusions, lobar/lung collapse or nodules)
- Non-cardiogenic (pulmonary artery wedge pressure needed if doubt)
- pO2/FiO2 < 40kPa (300 mmHg)
Management of ARDS
- ITU
- Organ support
COPD biPAP criteria
- COPD with respiratory acidosis pH 7.25-7.35 (if <7.25 may need to be on ITU and lower threshold for intubation)
BiPAP settings for COPD
Expiratory Positive Airway Pressure (EPAP): 4-5 cm H2O
Inspiratory Positive Airway Pressure (IPAP): RCP advocate 10 cm H20 whilst BTS suggest 12-15 cm H2O
back up rate: 15 breaths/min
back up inspiration:expiration ratio: 1:3
Cherry red spot on bronchoscopy
Lung carcinoid
Bronchiectasis most common organism
H influenzae
Acute asthma diagnosis: moderate
PEFR 50-75% best or predicted
Speech normal
RR < 25 / min
Pulse < 110 bpm
Acute asthma diagnosis: severe
PEFR 33 - 50% best or predicted
Can’t complete sentences
RR > 25/min
Pulse > 110 bpm
Acute asthma diagnosis: life threatening
PEFR < 33% best or predicted
Oxygen sats < 92%
‘Normal’ pC02 (4.6-6.0 kPa)
Silent chest, cyanosis or feeble respiratory effort
Bradycardia, dysrhythmia or hypotension
Exhaustion, confusion or coma
Management of acute exacerbation of asthma
- O2 if <92% sats
- High dose SABA
- PO pred (40mg)
- Nebulised ipratropium bromide
- IV MgSO4
- IV aminophylline
Criteria for discharge
Stable on their discharge medication (i.e. no nebulisers or oxygen) for 12–24 hours
Inhaler technique checked and recorded
PEF >75% of best or predicted
Chest drain insertion primary
<2cm
If asymptomatic discharge, if symptomatic for needle aspiration
Chest drain insertion primary >2cm
Aspiration if still symptomatic for chest drain
Chest drain insertion secondary >2cm
chest drain
Chest drain insertion secondary 1-2cm
aspiration if fails for chest drain
Chest drain insertion secondary <1cm
O2 and admission for 24 hours
4 key features of kartagners syndrome
- Dextrocardia or complete situs inversus
- Bronchiectasis
- Recurrent sinusitis
- Subfertility (secondary to diminished sperm motility and defective ciliary action in the fallopian tubes)
High altitude cerebral oedema management
Descent and dexamethasone
Alpha 1 antitrypsin genetics
Chromosome 14
autosomal recessive/co-dominant
Alpha 1 antitrypsin mobility
Alleles classified by their electrophoretic mobility
M: normal
S: slow
Z: very slow
Alpha 1 antitrypsin management
- bronchodilators
- IV alpha 1 antitryripsin protein
- surgery: lung volume reduction
Buprion MOA
When is it CI
MOA: norephrine and dopamine reuptake inhibitor and nicotinic receptor antagonist
Epilepsy (can lower seizure threshold)
Activities post pneumothorax
Stop smoking
Do not fly for 2 weeks (can wait 1 week post XR check up)
Scuba diving CI unless bilateral surgical pleurectomy, normal lung function and chest CT post op
Indications for steroids
Chest x-ray stage 2 or 3 disease who are symptomatic.
If not symptomatic:
hypercalcaemia
eye, heart or neuro involvement
COPD O2 sats
If pCO2 normal then 94-98%
Cystic fibrosis
- genes
Autosomal recessive
Defect in the cystic fibrosis transmembrane conductance regulator gene (CFTR), which codes a cAMP-regulated chloride channel
Delta F508 on the long arm of chromosome 7
Organisms that commonly colonise in CF
Staphylococcus aureus
Pseudomonas aeruginosa
Burkholderia cepacia
Aspergillus
Cannonball mets
Commonly renal cancer
Others: cholangiocarcinoma, prostate cancer
When do you get calcified lung mets?
Chondrosarcoma or osteosarcoma
Occupational asthma management
Serum peak flow at work and at home
Chlamydia psttachi abx
Doxycycline
Stages of COPD
FEV1/FVC <0.7
1: Mild (symptoms need to be present) - FVC >80%
2: Moderate - FVC 50-79%
3. Severe 30-49%
4. Very severe <30%
Most common cause of IECOPD
H. influenzae
Common cause of aspiration pneumonia
Klebsiella
Catamenial pneumothorax
Seen in menstruating women
To do with hormones
Lofgrens syndrome
Acute form sarcoidosis characterised by bilateral hilar lymphadenopathy, erythema nodosum, fever and polyarthralgia.
Loffler’s syndrome
A cause of pulmonary eosinophilia thought to be caused by parasites such as Ascaris lumbricoides
Elevated hemidiaphragm investigation
Fluroscopy (inaccurate for bilateral elevated hemidiaphragm)
Narcolepsy symptoms
Typical onset in teenage years
Hypersomnolence
Cataplexy (sudden loss of muscle tone often triggered by emotion)
Sleep paralysis
Vivid hallucinations on going to sleep or waking up
Narcolepsy management
Modafanil (can use sodium oxybate at night)
Cataplexy symptoms
sudden and transient loss of muscular tone caused by strong emotion (e.g. laughter, being frightened)
Cataplexy management
SNRI
Cause of pneumonia in Spain/air con
Legionella
urinary antigen
mx: erythromycin
Minimum amount of time on LTOT?
15 hours a day
Bronchiectasis management
Airway clearance
Latent pulmonary TB management
RI for 3 months (isoniazid with pyroxidine)
I for 6 months (with pyroxidine)
Active TB management
RIPE (with pyroxidine) for 2 months, 4 months of RI (+pyridoxine)
SE: rifampicin
potent liver enzyme inducer
hepatitis, orange secretions
flu-like symptoms
SE: isoniazid
peripheral neuropathy: prevent with pyridoxine (Vitamin B6)
hepatitis, agranulocytosis
liver enzyme inhibitor
SE: pyrazinamide
hyperuricaemia causing gout
arthralgia, myalgia
hepatitis
SE: ethambutol
optic neuritis: check visual acuity before and during treatment
PJP management
Co-trimoxazole
Antibody Scl-70?
Diffuse cutaenous systemic sclerosis
Anti-centromere?
Limited cutaneous systemic sclerosis
- associated with pulmonary artery hypertension
Mycobacterium malmoense diagnosis
Requires 2 samples from 2 different areas to be clinically significant
Sniff test for unilateral paralysis of the diaphragm
One goes up and one goes down, seen on fluoroscopy
Aspergilloma symptoms
Usually asymptomatic may have mild haemoptysis
Invasive aspergillosis
Fever, lots of sputum, pleuritic chest pain
Allergic pulmonary aspergillosis
Productive cough, wheeze, SOB
Chronic pulmonary aspergillosis
chronic productive cough and SOB
When to see raised transfer factor
When there is increased contents of the alveoli into the bloodCau
Causes of raised transfer factor
Pulmonary haemorrhage
Polycythaemia
Early left heart failure
Exercise
What to monitor for mortality in COPD
FEV1
Pleural effusion transudative criteria
Increase in hydrostatic pressure or decrease in oncotic pressire
- HF
- cirrhosis
- PE
low levels of protein
Pleural effustion exudative criteria
inflammation of capillaries, makes them leaky = big proteins like LDH present
- trauma
- lupus
- infection
- malignant
Lights criteria
Exudative if:
fluid protein : serum protein >0.5
fluid LDH: serum LDH >0.6
fluid LDH >/= 2/3 serum LDH
When to drain a pleural effusion
If pH<7.2 as likely an empyema
Meigs syndrome
Ovarian fibroma + ascites + pleural effusion
Pleural effusion investigation
§
- US guided aspiration
- If appears to be malignant for CT thorax
Most important vitamin to replace in CF
ADEK
Eosinophilic pneumonia treatment
Systemic steroids
Rheumatoid arthritis rare resp complication
Bronchiolitis obliterans
Which way does the trachea move in a pneumothorax
Away from the pneumothorax
Criteria for LTOT in COPD
paO2 < 7.3
Or pao2<8 AND
- pulmonary hypertension (RHF)
- secondary polycythaemia
- periphaeral oedema
- nocturnal hypoxia