resp Flashcards
name 5 signs of a tension pneumothorax
SOB
tachy
hypotensive
tracheal deviation away from the pneumothorax
reduced air entry
increased resonance to percussion on affected side
management of a tension pneumothorax
dont wait for chest x ray before treating if suspected
insert large bore cannula into 2nd intercostal space, midclavicular line to create connection between air and lung
definitive management is chest drain insertion
other: supportive, high flow oxygen
management of spontaneous pneumothorax
if less than 2 cm or asymptomatic = conservative as it will spontaneously reduce and follow up in 2-4 weeks
if over 2cm on x ray or SOB do aspiration, if aspiration fails twice then insert chest drain
if bilateral or patient unstable insert chest drain straight away
management of COPD
- SABA or SAMA
- if no asthmatic features introduce LABA + LAMA
- if asthmatic features go for ICS - if no asthma = LABA + ICS
what is the most common organism causing a cap
strep pneumoniae
what is the most common organism causing a HAP
staph aureus / mycoplasma / h.influenzae
definition of a HAP
pneumonia within 48 hours of hospital admission
most common organism causing pneumonia in HIV
penumocystitis jivercoi
most common cause of atypical pneumonia
mycoplasma
how does an atypical pneumonia present
fever
how does an atypical pneumonia present
fever, flu like symptoms eg arthralgia, myalgia, dry cough
how does mycoplasma pneumonia present
flu like symptoms arthralgia, myalgia, dry cough, headache
how does klebsiella pneumonia present
red currant sputum
which organism is most likely to cause pneumonia in patients with bronchiectasis
h.influenzae
patient with small cell lung cancer presents with weakness in arms and legs that is worse in his legs, that gets better with movement
lambert eaton syndrome
which type of occupational lung exposure causes upper zone fibrosis
coal dust
name 4 causes of erythema nodosum
idiopathic TB chlamydia strep infection sarcoidosis crohns UC
name 6 causes of bronchiectasis
congenital: youngs syndrome, primary cilliary dyskinesia
post infection: pneumonia
post-obstructive: foreign body, hilar lymphadenopathy
other disease: UC, rheumatoid arthritis
name 4 complications of bronchiectasis
recurrent infection haemoptysis pneumothorax resp failure cor pulmonale
name the 2 diagnostic tests for a PE
- CTPA
2. V/Q scanning
chest x ray findings in pulmonary fibrosis
- honey comb lung
- reduced lung volumes
- reticulonodular shadowing
sites for lung mets
bone brain liver adrenals
what survey is used in obstructive sleep apnea
epworth sleepiness scale
name 5 causes of pulmonary fibrosis
idiopathic
Autoimmune: rheumatoid arthritis, sjorens, systemic sclerosis
drugs: amiodarone, nitrofurantoin, methotrexate
neurofibromatosis
name 3 risk factors for OSA
enlarged tonsils enlarged adenoids nasal polyps obesity alcohol
name a complication of OSA
right heart failure secondary to chronic pulmonary hypertension
name 2 signs of right heart failure on chest x ray
enlarged pulmonary arteries
enlarged right ventricle
name 3 causes of a bilateral hilar lymphadenipathy
TB bronchial carcinoma lymphoma sarcoidosis EEA
what is seen on histological biopsy of sarcoidosis
non caseating granulomas
name a symptom of sarcoid for different body systems
skin: erythema nodosum
lungs: fibrosis, hilar lymphadenopathy
eyes: uveitis
msk: arthralgia, bone pain
CNS; neuropathy, cranial nerve palsies
cardio: cardiomyopathy
other: HYPERCALCAEMIA
liver: hepatosplenomegaly
what advice should be given to patients starting long term steroids
there is a risk of adrenal crisis as your body becomes dependent on the steroid tablets so you should never just suddenly stop taking them, you should taper them down and also double the dose when you are ill.
what tests should you do in the aspirate of a patient with a unilateral pleural effusion
- culture, microscopy and sensitivity
- look at protein, LDH, ph and gluose
- cytology
- ziehl neelsen staining for acid fast bacilli
how do you manage recurrant pleural effusions
pleurodiesis - involved putting an irritant such as talc into the pleural space to cause inflammation of the pleura meaning it adheres/sticks/fuses with the chest wall to prevent recurring effusion
what is an abscess
a collection of infected fluid contained within a cavity
name 2 complications of klebsiella pneumonia
more likely to get lung abscess
empyema
pleural adhesions
which group of patients are more at risk of klebsiella pneumonia
elderly
immunocompromised
alcoholics
diabetes
what is a complication of mycoplasma pneumonia and why does it occur
autoimmune haemolytic anaemia because of cold agglutins
what is a complication of mycoplasma pneumonia and why does it occur
autoimmune haemolytic anaemia because of cold agglutins
steven johnsons and erythema multiforme
GBS
meningoencephalitis
what cd4 count does pneumocystitis jiroveci usually occur at
< 200
what type of organism is pneumocystitis jiroveci
a fungus
describe curb 65
confusion - AMT -1 Urea >7 - U+E - 1 RR > 30 BP < 90 systolic age over 65 -75, 76+ (1, 2)
1 = manage at home, 2 = consider hospital but could be outpatient 3 = deffo hospital
what antibiotics do you use for legionella pneumonia
ciprofloxacin or azithromycin
what antibiotic do you use for hap
co amox
if pen allerg use clari + doxy
what antibiotics do you use for cap
amox
if pen allerg use clari
what antibiotics are good for mycoplasma pneumonia
doxy
what antibiotic is used to treat pneumocystitis jiroveci
co-tramoxazole
specific test for legionella pneumonia
legionella urinary antigen test
which organism that causes a pneumonia causes an SIADH so HYPONATRAEMIA
legionella
typically resents with pneumonia with derranged LFT’s and a low sodium = legionella
antibiotic for legionella pneumonia
clarithromycin or erythromycin
antibiotic for mycoplasma pneumonia
doxy / clarithromycin
name 3 causes of a lung abscess
aspiraion pneumonia
pneumonia eg klebsiella increases risk
lung cancer
symptoms of a lung abscess
fever productive cough foul smelling sputum sob night sweats weight loss
investigations for a lun abscess
- diagnosis on CXR / CT thorax
- CRP to monitor infection
- sputum culture for organism
- bronchoscopy with aspiration for culture, drainage
management of a lung abscess
- abcde
- o2
- chest physio
- iv abx for 3 weeks followed by orals for 3 months
- if really bad and patient fit for surgery can do CT guided percutaneous drainage of abscess or pulmonary resection of affected area
define fev1
the volume of air forcibly exhaled in the first second after deep inspiration
define fvc
the total volume of air maximally exhaled after a deep inspiration in one breath
describe a restrictive spirometery chart
starts off well and following the trajectory of the normal line and then sharply plateaus as a straight line
describe an obstructive spirometery chart
starts off really crap (cos obstructive fev1 is reduced and the start is the 1st second) then sort of plateus more softly and continues upwards
how much is the MAP increased by in pulmonary hypertension
15mmhg
name 4 signs of pulmonary hypertension on examination
- raised jvp
- parasternal heave
- pansystolic murmur from tricuspid regurg
- end diastolic murmur from pulmonary regurg
name 5 causes of pulmonary hypertension
copd pulmonary fibrosis bronchiectasis cystic fibrosis vasculitis PE portal HTN OSA kyphosis mnd myasthenia gravis
how do you diangose pulmonary hypertension
right heart catheterisation to measure the MAP >25mmhg
how do you manage pulmonary hypertension
- treat underlying cause
- reduce pulmonary vascular resistance using LTOT / nifedipine, slidenifil, or prostacycline analogues
- definitive management is heart and lung transplant
how does a PE present
pleuritic CP haemoptysis acute sob acute collapse tachycardia tachypnoea low bp
what does the chest sound like in a patient with a pe
clear
what score is used for PE/DVT
wells score
what is in wells score for pe
pe most likely diagnosis HR > 100 clinical signs of DVt immobilisation for 3 days or surgery in past 4 weeks previous pe/dvt haemoptysis malignancy in past 6 months
what are the 8 rule out criteria for PE
must not have any of... age over 50 oestrogen use previous pe / dvt haemoptysis recent surgery sats <95% oa HR > 100 unilateral leg swelling
signs of a PE on ecg
large S wave in lead 1
inverted T wave in lead 3
large Q wave in lead 3
RAD + RBBB