Cough, Pneumonia, Lung Cancer Flashcards
Is a COPD exacerbation a type of pneumonia?
No
What scoring system is used for community acquired pneumonia?
CURB-65 C confusion U urea >7 RR >30 BP sBP <90 or dBP <60 65 over 65yr
What is the management of pneumonia with a CURB-65 of 0-1?
Manage at home unless high risk
Antibiotics
1st line PO amoxicillin 1mg TDS for 5d
2nd line PO doxycycline for 5d
What is the management of pneumonia with a CURB-65 of 2?
Usually treat at home
Consider hospital referral, use clinical judgment
What is the management of pneumonia with a CURB-65 of 3?
Severe CAP = admit
1st line IV co-amoxiclav + PO doxycycline
2nd line IV levofloxacin
Step down to PO doxycycline
(If transferring from primary care give single dose oral amoxicillin before transfer)
(Review need for IVs daily)
What is the management of pneumonia with a CURB-65 of 4?
Severe CAP = admit to ICU/HDU
1st IV co-amoxiclav + IV clarithromycin
2nd line IV levofloxacin
(If transferring from primary care, give single dose oral amoxicillin before transfer)
(Review need for IVs daily)
Why isn’t alcohol recommended with amoxicillin?
Causes N+V
What follow up investigation is done after discharging patients with inpatient pneumonia?
Repeat CXR 6wk after
What is the test for legionella?
Urinary legionella antigen tests
What investigations are done for all inpatient pneumonias?
Bloods Blood culture CXR Sputum culture Throat swab culture Legionella urine Ag Virology PCR
What is the commonest infective agent in CAP?
Strep pneumoniae
What infectious agent in CAP is cultured on chocolate agar?
Haemophilus influenzae
What infectious agent in CAP is associated with air conditioning units?
Legionella
What infectious agent in CAP is associated with sheep / goats?
Coxiella burneti (Also associated with endocarditis)
What infectious agent in CAP is associated with alcoholics and in upper lobes?
Klebsellia
Strep pneumoniae is also associated with alcoholics
What infectious agent in CAP is associated with herpes labialis?
Strep pneumonia
What infectious agent in CAP is associated with birds?
Chlamydophilia psittaci
What infectious agent in CAP is associated with HIV?
PCP pneumocystis
Is increased white cell count associated with increased severity of pneumonia
No
By definition for HAP how long must the patient have been in hospital for?
At least 5 days
What is an empyema?
Pus in the pleural space
How would an empyema present following CAP?
Poor response to antibiotics
Persisting effusion on CXR
What is the management of a empyema? When do you drain it?
Pleural tap
Check pH of aspirate, if <7.2 = infected = drain
What is Pemberton’s test?
For SVCO, raise arms, positive if facial flushing face goes red
What is the management of SVCO caused by a tumour?
High flow oxygen + dexamethasone
“Permanent dilatation and thickening of airways, chronic airway inflammation” describes what disease?
Bronchiectasis
Is smoking a RF for bronchiectasis?
No
CF, immunodeficiency and asthma are RFs
Pneumonia with what infectious agent should raise suspicion of bronchiectasis?
Pseudomonas
What is the CXR appearance of bronchiectasis?
No specific changes
What is the gold standard investigation for bronchiectasis?
HRCT - signet ring sign (bronchial lumen diameter greater than pulmonary artery)
Does bronchiectasis cause fine or coarse crackles? In inspiration or expiration? In lower or upper zones?
Coarse inspiratory crackles in lower zones
What is a pleural effusion?
Fluid in pleural space between lung and chest wall
What is a haemothorax?
Blood in pleural space
Bilateral pleural effusions and cardiomegaly on CXR is a sign of what?
Heart failure
What are the signs and symptoms of a pleural effusion?
May be asymptomatic Stony dull percussion Reduced chest expansion Breathlessness Pleuritic chest pain
What are the 2 types of pleural effusion?
Transudate and exudate
Transudate or exudate - which is due to high venous pressures?
Transudate
Transudate or exudate - which has high / low cell count?
Transudate low cell count
Exudate cell rich
Transudate or exudate - which has high / low protein count?
Transudate low protein count <30
Exudate protein rich >30
Transudate or exudate - which has high LDH?
Exudate
Benign ovarian tumour with ascites + transudate pleural effusion is what syndrome?
Meigs syndrome
What is the diagnostic criteria for exudate pleural effusion?
Protein ratio >0.5 or fluid: LDH ratio >0.6
Metastatic cancer causes what type of pleural effusion?
Exudate
Heart failure causes what type of pleural effusion?
Transudate
Fluid overload causes what type of pleural effusion?
Transudate
Pneumonia causes what type of pleural effusion?
Exudate
What is the CXR appearance of a pleural effusion?
Blunting of the costophrenic angles
If large - white out
Does the trachea deviate towards or away from a pleural effusion?
Away
What is the management of a pleural effusion?
Pleural aspiration thoracentesis
What test are done on the pleural aspirate of a pleural effusion?
Cytology, protein, LDH, gram stain culture sensitivity
If pleural aspiration thoracentesis doesn’t relieve symptoms in the Mx of a pleural effusion, what is the next step?
Chest drain
can’t drain more than 1.5L in a single procedure
Pleurodesis involves injecting a sclerosing agent - is it used in the Mx of what type of pleural effusion?
Malignant pleural effusion
90% of TB is latent or active?
TB affects the lung bases or apex?
90% latent
Apex
Caseating granulomas are due to what infection?
TB
Night sweats, weight loss, malaise, cough, haemoptysis, SOB and upper zone crackles are all features of what?
TB
What investigation is done for latent TB?
Mantoux skin test
What investigation is done for active TB?
CXR + sputum culture (ZN stain acid fast bacilli)
What is the management of active TB?
2 months RIPE + 4 months RI
What is the management of latent TB?
6 months isoniazid or 3 months isoniazid + rifampicin
Which TB drug causes optic neuritis?
Ethambutol
Which TB drug causes orange urine/tears?
Rifampicin
Which TB drug causes gout?
Pyrazinamide
Which TB drug causes neuropathy?
Isoniazid
Miosis, ptosis, anhydrosis describes what syndrome
Horner’s syndrome
(due to cervical sympathetic plexus disruption)
(associated with pancoast tumours)
What type of lung cancer is commonest in non-smokers?
Adenocarcinoma
What type of lung cancer is commonest?
Adenocarcinoma
A patient with known lung cancer presenting with acute breathlessness, headache, swollen neck with distended veins and racial reddening - what is the Dx
SVC obstruction
What type of lung cancer is associated with pancoast tumours?
Small cell
What is the management of metastatic malignant raised ICP?
IV dexamethasone
What type of scan do you do if you suspect metastatic bone disease?
Bone scan
Are bone mets from lung cancer lytic or sclerotic?
Lytic
You suspect someone has lung cancer, what investigation do you order next?
CXR
What type of lung cancer is associated with gynaecomastia?
Adenocarcinoma
What type of lung cancer is associated with LEMS Eaton Lambert?
Small cell
What type of lung cancer is associated with hypertrophic osteoarthropathy
Squamous
What type of lung cancer is associated with paraneoplastic Cushing syndrome?
Small cell through ectopic ACTH secretion
What type of lung cancer is associated with paraneoplastic hypercalcemia and through what mechanism?
Squamous
Ectopic PTH secretion
Bones stones groans moans
What type of lung cancer is associated with: SIADH secretion
Small cell
What type of lung cancer is associated with paraneoplastic hyponatremia and through what mechanism?
Ectopic ADH secretion
Small cell
Clubbing and onion skin XR are signs of what paraneoplastic syndrome in lung cancer?
Hypertrophic osteoarthropathy
Proximal weakness that improves with muscle use, diplopia, ptosis, haemoptysis, weight loss, chronic cough and breathlessness - what is the diagnosis?
Eaton Lambert LEMS paraneoplastic small cell lung cancer
When investigating lung cancer, after a positive CXR, what investigation is done next
CT + biopsy
Biopsy bronchoscopy EBUS central lesions, CT guided biopsy if peripheral
Does small cell lung cancer have a poor or good prognosis?
Small cell poor prognosis
What type of lung cancer is second commonest?
Squamous
What type of lung cancer is more chemo responsive?
Small cell
What type of lung cancer is suitable for surgery?
Stage 1 or 2 non-small cell lung cancer
Does a normal CXR exclude lung cancer?
No
What treatment is used in conjunction with surgery for lung cancer?
Radiotherapy
What is the function of a radiotherapy simulator?
To plan the area for treatment