Respiratory conditions: diseases Flashcards
Definition of primary vs secondary pneumothorax
Primary = no hx of lung disease Secondary = hx of lung disease
Managing primary pneumothorax
Air rim <2 cm
Aim rim >2 cm
Air rim <2cm, no symptoms = discharge
Air rim <2cm, SOB = aspirate
Air rim >2cm = chest drain
Managing secondary pneumothorax
Air rim <1 cm
Aim rim 1-2 cm
Air rim >2cm
Air rim <1 cm = Give oxygen, admit for 24h
Air rim 1-2cm = aspirate
Air rim >2cm = chest drain
Breathless at any point = chest drain
Who should get a chest drain if they have a pneumothorax
- Primary/ secondary pneumothorax, air rim >2cm
- Secondary pneumothorax, patient >50yo
- Secondary pneumothorax, patient breathless
Contraindication to usage of bupropion for smoking cessation
Epilepsy (risk of reduced seizure control)
Pregnancy
Breastfeeding
Where is the safe triangle for chest drain insertion
- Latissimus dorsi
- Pec major
- 4th/5th intercostal space in the mid axillary line
Direct tube high and anteriorly
How much oxygen to give in venturi in a COPD CO2 retainer
24percent oxygen
Which 2 groups of COPD patients should be put on LTOT
- PaO2 <7.3 despite maximum treatment
2. Peripheral oedema/ polycythaemia
Drugs for long term management of COPD
- SABA or SAMA
- LABA + ICS
- LAMA
Drugs for long term management of asthma
- SABA
- SABA + ICS
- SABA + ICS + LTRA
- SABA + ICS + LABA (continue LTRA depending on response)
- SABA + LTRA + higher dose ICS
Management of suspected pulmonary embolism
LMWH (if normotensive)
Thrombolysis (if hypotensive)
Management of recurrent pulmonary embolism
Consider IVC filter
What investigation to do in a suspected PE with a LIKELY Wells score
Likely Wells score (>4)
Immediately CTPA
(if can’t do immediately then give anticoagulants first then CTPA)
What investigation to do in a suspected PE with an UNLIKELY Wells score
Unlikely Wells score (4 or less)
do D dimer, then if positive do CTPA
Most common site of aspiration pneumonia. Why this site?
Apical and posterior segments of the lower lobe of the right lung
Due to larger caliber and more vertical orientation of the right mainstem bronchus
What pneumonias can cause dry cough
Legionella (if travel, air con)
Chlamydia psittaci (bird lovers)
PCP (immunocompromised)
Mycoplasma
(Lungs Cant Produce Mucus)
What pneumonia causes redcurrant jelly sputum
Klebsiella
Risk factors for Klebsiella pneumonia
Elderly
Diabetes mellitus
Alcohol
Risk factors for Legionella pneumonia
Travel
Aircon
Most common bacterial causes of IECOPD
- Haemophilus influenza (most common)
- Strep pneumoniae
- Moraxella catarhallis
Treatment for IECOPD
Prednisolone 30mg for 7-14 days
Abx only if clinical signs of pneumonia
Cavitating pneumonia in upper lobes -most likely organism
Klebsiella
Most common cause of HAP in patients on ventilator in ITU
Pseudomonas aeruginosa
CXR pattern in klebsiella pneumonia
Cavitating pneumonia in upper lobes
CXR pattern in mycoplasma
Patchy consolidation of 1 lower lobe
+ flu like symptoms
CXR pattern in legionella pneumophilia
Bibasal consolidation
What pneumonia causes redcurrant jelly sputum
Klebsiella
What PEFR levels indicate moderate, severe and life threatening asthma
PEFR:
50-75percent of best/predicted: moderate
33-50 of best/predicted: severe
<33 of best/predicted: life threatening
Causes of lower zone pulmonary fibrosis
- idiopathic pulmonary fibrosis
- most connective tissue disorders (except ankylosing spondylitis) e.g. SLE
- drug-induced: amiodarone, bleomycin, methotrexate
- asbestosis
Causes of upper zone pulmonary fibrosis
Upper zone fibrosis: CHARTS
C - Coal worker's pneumoconiosis H - Histiocytosis/ hypersensitivity pneumonitis A - Ankylosing spondylitis R - Radiation T - Tuberculosis S - Silicosis/sarcoidosis
Drug induced causes of pulmonary fibrosis
Amiodarone
Methotrexate
Neomycin
Most common cause of spontaneous secondary pneumothorax
COPD
Most common chemical cause of occupational asthma
Isocyanates eg spray painting, foam moulding with adhesives
What drugs cause pulmonary eosinophilia
Nitrofurantoin
Sulphonamides
Which of these causes fibrosis in the upper or lower zones
- Silicosis
- Coal worker’s pneumoconiosis
- Asbestosis
UPPER ZONE
- Silicosis
- Coal worker’s pneumoconiosis
LOWER ZONE
-Asbestosis