Main resp. diseases Flashcards

1
Q

Lung cancer is the third most common cancer in the UK behind which other cancers

A

breast and cancer

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2
Q

non small cell lung cancer is around 20%

A

no 80%

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3
Q

which three nsclc are there

A

adenocarcinoma
squamous cell carcinoma
large-cell carcinoma

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4
Q

why is SCLC responsible for multiple paraneoplastic syndromes

A

contain neurosecretory granules that can release neuro-endocrine hormones

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5
Q

4 symptoms of lung cancer

A

Shortness of breath
Cough
Haemoptysis
Weight loss

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6
Q

Signs of lung cancer

A

finger clubbing
recurrent pneumonia
wight loss
lymphadenopathy (supraclavicular nodes first to be found on examination)

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7
Q

5 investigations for lung cancer

A

CXR
CT
PET-CT
Bronchoscopy
Histological diagnosis

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8
Q

What’s first line investigation for lung cancer

A

CXR

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9
Q

What are you looking for in a CXR for lung cancer? (4)

A

Hilar enlargement
Peripheral opacity
Pleural effusion
Collapse

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10
Q

What’s the CT for lung cancer?

A

contrast enhanced for lymph node involvement and metastasis

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11
Q

Lung cancer, why PET-CT

A

Has radioactive tracer- attaches to glucose molecules, to see how metabolically active tissues are

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12
Q

Why bronchoscopy with EBUS (endobronchial ultrasound) in lung cancer

A

Detailed assessment of tumor and ultrasound guided biopsy

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13
Q

Histological diagnosis- why in lung cancer

A

Of biopsy, from bronchoscopy or percutaneous. Is it small cell or non-small cell?

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14
Q

Treatment options for small cell lung cancer

A

Radiotherapy and chemotherapy

prognosis rubbish

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15
Q

Treatment options for nsclc? (3)

A

First line = surgery such as lobectomy, segmentectomy, wedge resection

If early enough, radiotherapy

Chemo as adjuvant, or palliative for qol

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16
Q

Otherwise asymptomatic patients in lung cancer could have evidence if:

A

paraneoplastic syndromes
extra-pulmonary manifestations

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17
Q

4 examples of extra-pulmonary manifestations of lung cancer

A

1) recurrent laryngeal nerve palsy (due to tumor)
2) phrenic nerve palsy- nerve compression, diaphragm weakness and SOB
3) superior vena cava obstruction = tumor on it, facial swelling, SOB, distended veins in neck
4) horners syndrome from pancoast tumour on sympathetic ganglion

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18
Q

Someone has lung cancer. They raise their hands, and there is facial congestion and cyanosis. Why?

A

emergency. Pressing on svc

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19
Q

what is mesathelioma

A

affects meothelial cells of the pleura

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20
Q

mesothelioma is strongly linked to what

A

asbestos inhalation

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21
Q

latent period in mesothelioma can be how long

A

even up to 45 years

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22
Q

why chemo in mesothelioma

A

to improve survival, but it is essentially palliative

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23
Q

What is pneumonia

A

infection of the lung tissue

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24
Q

what does pneumonia cause

A

inflammation, sputum filling the airways and alveoli

25
Pneumonia can be seen as what on the CXR
consolidation
26
Would haemoptysis ever present in pneumonia?
Yes
27
6 ways pneumonia presents
SoB Cough productive of sputum Fever Haemoptysis Pleuritic chest pain Delirium
28
Complication of pneumonia 5 incl death
sepsis pleural effusion empyema lung abscess death
29
whats delirium
acute confusion associated with infection
30
Pleuritic chest pain is worse on expiration or inspiration
insp
31
when might you see hypotension (shock) in pneumonia
sepsis
32
signs of that may indicate sepsis secondary to pneumonia (3 groups of 2):
tachypnoea tachycardia hypoxia hypotension (shock) fever confusion
33
3 examination chest signs of pneumonia:
1) bronchial breath sounds 2) focal coarse crackles 3) dullness to percussion
34
You might find bronchial breath sounds with pneumonia. What is this caused by?
harsh breath sounds, equally loud on inspiration and expiration. Caused by consolidation of the lung tissue around the airway
35
Focal coarse crackles can be heard in pneumonia. what causes this?
These are air passing through sputum in the airways similar to using a straw to blow in to a drink.
36
Why hear dullness to percussion in pnunomia?
due to lung collapse and/or consolidation
37
what's the CURB-65 used for
predicting mortality
38
Curb-65 stands for
C- confusion (new) U- urea > 7 R- respiratory rate B- blood pressure < 90/60 65- older than 65
39
curb score of 2 or more =
consider hospital treatment
40
curb score of 3 or more
consider intensive care assessment
41
2 common causes of pneumonia
streptococcus pneumoniae haemophilus influenzae
42
would pneumonia ever be associated with cystic fibrosis and if so, what
staphylococcus aureus
43
what don't atypical pneumonias respond to
penicillins
44
definition of atypical pneumonia
cannot be detected using a gram stain, or be normally cultured
45
three ways atypical pneumonia's can be treated
macrolides fluroquinolones tetracyclines
46
Typical exam patient has recently had a cheap hotel holiday and presents with hyponatraemia (low sodium, vomiting, fatigue, headache, confusion) = what lung disease
pneumonia
47
5 causes of atypical pneumonia: remember this mnemonic: legions of psittaci MCQs
M= mycoplasma pneumoniae C= chlamydydophila pneumoniae Qs= Q fever
48
when might fungal pneumonia occur
in patients that are immunocompromised
49
PCP pneumonia occurs in what patients
immunocompromised patients
50
People with low CD4 counts are prescribed what to protect against PCP
prophylactic oral co-trimoxazole
51
minimum investigations of pneumonia in community
CXR FBC for raised white cells U&Es for urea CRP (raised in inflammation and infection)
52
Patients with moderate or severe cases of pneumonia should also have:
sputum cultures blood cultures legionella and pneumococcal urinary antigens
53
inflammatory markers of pneumonia?
white blood cells CRP
54
Patients that are immunocompromised may not show an inflammatory response and therefore
may not have raised inflammatory markers
55
Antibiotics for pneumonia looks like?
Mild CAP: 5 day course of oral antibiotics (amoxicillin or macrolide) Moderate to severe CAP: 7-10 day course of dual antibiotics (amoxicillin and macrolide)
56
pleural effusion
abnormal collection of fluid between pleura
57
empyema
purulent fluid collection in the pleural space so basically an infected pleural effusion
58
lung abscess vs empyema
lung abscess involves the lung parenchyma, whereas an empyema involves the pleural space