Respiratory Flashcards
Bupropion should not be used with?
Epilepsy as it reduces seizure threshold
Smoking cessation options
NRT, Varenicline and Bupropion. All to be offered with no priority
Varenicline
Nicotine receptor partial agonist
Nausea is the most common adverse effect
Caution in H/o depression and self harm
Contraindicated in Pregnancy and breast feeding
Psittacosis
Chlamydia psittaci
Fever and bird contact
Response to tetracyclines and macrolides (1st and 2nd line respectively)
Non-Small cell lung cancer surgery contraindications
SVC obstruction
FEV <1.5
Malignant pleural effusion
Vocal cord paralysis
Predisposing factors for OSA
Obesity
Macroglossia - hypothyroidism, amyloidosis, acromegaly
Upper zone fibrosis
Remember CHARTS
- Coal workers’ pneumoconiosis
- Histiocytosis
- AS
- Radiation induced
- TB
- Silicosis
Extrinsic allergic alveolitis
Sarcoidosis
Lower zone fibrosis
- Asbestosis
- Idiopathic pulmonary fibrosis
- SLE
- Drug induced - Amiodarone, Bleomycin, Methotrexate
Allergic Bronchopulmonary Aspergillosis (ABPA)
- Bloods
- Raised IgE
- Raised eosinophils - B/L pulmonary infiltrates
- Treatment
Oral steroids
Primary Pneumothorax
< 2 cms - Discharge
> 2 cms - aspirate, if fails - chest drain
Secondary Pneumothorax
< 1 cm - Give oxygen and monitor
1-2 cms - aspirate, if fails - - > chest drain
> 2 cms/> 50 years old - chest drain
Most common cause of occupational asthma
Isocyanates
Indications for steroids in Sarcoidosis
Parenchymal lung disease
Uveitis
Hypercalcemia
Neurological or cardiac involvement
Prevention of Acute mountain sickness
Acetazolamide
Churg Strauss (EGPA) criteria
Any 4 among:
Asthma
Eosinophilia
Neuropathy
Sinus abnormalities
Flitting Pulmonary infiltrates
Extravascular eosinophils histologically
pANCA
Bronchiectasis causes
Post infective - TB, Measles, pertussis,
Cystic fibrosis
Bronchial obstruction - lung CA, FB
Immune deficiency like IgA
ABPA
Kartagener
Yellow nail syndrome
Paraneoplastic features of lung CA
SCC - PTHrp, clubbing, HPOA
Small cell - ADH, ACTH, Lambert - Eaton
Most common bacteria in IE COPD
Haemophilus influenzae
Which chronic infection is a contraindication for lung transplant in a Cystic fibrosis patient?
Infection with Burkholderia cepacia
Alpha 1 AT deficiency
AAT is a protease inhibitor
Autosomal recessive/co-dominant
Heterozygous - PiMZ low risk but can pass to children
Homozygous PiZZ - usually disease
Treatment
No smoking
Bronchodilators and physio
Lung volume reduction surgery
COPD management
First line is SABA
Poor control despite SABA :-
- No asthmatic features or negative steroid responsiveness - LABA + LAMA
- Asthmatic features - LABA + ICS. If poor response, LABA + LAMA + ICS
Criteria for steroid responsiveness in COPD
- previous diagnosis of asthma
- Higher eosinophil count
- substantial variation in FEV1 over time (atleast 400 ml)
- substantial diurnal variation in PEFR (atleast 20%)
Raised TLCO
Asthma
Pulm Hemorrhage
Polycythemia
Left to right shunts
Low TLCO
Fibrosis
Pneumonia
PE
Pulm edema
Emphysema
Anemia
Investigation for suspected adult asthma
FeNO +Spirometry with reversibility
Pulm HTN is Pulm arterial pressure greater than?
25 mm Hg at rest or 30 mm Hg after exercise
Most common type of cavitating lung CA
SCC
Extrinsic allergic alveolitis (hypersensitivity pneumonitis)
Mainly type III hypersensitivity damage
Farmers lung: Saccharopolyspora rectivirgula
Malt workers lung: Aspergillus clavatus
Upper zone fibrosis
Oral steroids
Oxygen dissociation curve
Left - Lower oxygen delivery, Lower acidity, Low temp, Low 2-3 DPG, HbF
Right - Raised oxygen delivery, Raised acidity, Raised temp and raised 2-3 DPG
Pulmonary Eosinophilia causes
ABPA
Churg Strauss
Loeffler’s syndrome
Extrinsic allergic alveolitis DOES NOT CAUSE Eosinophilia
Klebsiella risk factors
DM, Alcoholics
Cystic fibrosis
Normal function of Cystic fibrosis Transmembrane regulator - Chloride channel
Chromosome 7
Classic finding in Silicosis
Egg shell calcification and cavitation
HLA associations
HLA DR1: Bronchiectasis
HLA DR2: SLE
HLA DR3: Autoimmune hepatitis, T1DM, SLE
HLA DR4: RA, T1DM
HLA B27: AS, Acute anterior uveitis