Finals Made Easy Flashcards
(89 cards)
Middle aged lady with confusion, cough, brown coloured sputum, reduced air entry in RLL, what could it be?
Pneumonia(most likely lobar)
Pleural effusion
Need to check with an X-ray
Dullness in pleural effusion is described as…
Stony dull
Pleural effusion is…
Fluid on the OUTSIDE of the lung
Which organisms show cavitating lesions on X-ray?
Klebsiella
TB
Stash Aureus
Difference between bronchopneumonia and lobar pneumonia on X-ray
Bronchopneumonia = patchy on both sides Lobar = clear lobe effected, air bronchograms
Bronchiectasis on X-ray findings
See end on, widened airways
Most likely cause of infection in bronchiectasis
Haemophilus influenza
Can also be pseudomonas aureginosa
Causes of bronchiectasis
Idiopathic CF A1at deficiency Post infectious (TB, aspiration) PCD
Presentation of bronchiectasis
Clubbing
Chest sepsis
Chronic, productive cough (>2mo)
Best investigation for bronchiectasis
High resolution CT
Investigations for bronchiectasis
High resolution CT
Sputum MC&S
Spirometry
Specific tests for niche causes such as a1at, IG levels (autoimmune), sweat test, HIV antibodies
How long do you give antibiotics for in long standing lung disease? I.e. on background disease/lots of previous infections
14 days
How do you know if they are a chronic CO2 retainer?
ABG shows chronic compensation
What is PIFR?
Peak of the inspirations curve, roughly what they are attempting to breathe in a minute
What is a typical PIFR
20L/min
How does a Venturi mask give specific amount of oxygen?
The Venturi mask mixes it with air at a very precise proportion
Normal FiO2 of air
21% O2
How do you estimate PaO2 based on what they are breathing in?
Take 10 off the % oxygen they are breathing
21% - 10-13kPa
What do you expect CO2 to be in an asthma attack?
Low
CO2 is normal in asthma attack, is this bad?
Yes, should be breathing that CO2 off. Shows they are getting tired
First line management of PE not confirmed on CTPA
Rivoroxaban
Sign of major PE
Haemodynamic compromise
Causes of prehepatic jaundice
Haemolytic
Sickle cell disease
Haemolytic anaemia
Malaria
Hepatic causes of jaundice
Damage to hepatocytes (drugs, disease, failure)