Respiratory Tract Infection Flashcards
Name 4 conditions that affect the lower respiratory tract i.e. below the vocal cords?
- Acute bronchitis
- Acute exacerbation of chronic bronchitis
- Pneumonia
- Influenza
What condition is an acute viral infection of the nasal passages, often accompanied by sore throat, sometimes a mild fever, spread by droplets and fomites and complications can include sinusitis or acute bronchitis?
Common cold - coryza
What condition is preceded by a common cold and involves purulent nasal discharge?
Acute sinusitis
Name 3 special respiratory tract conditions?
Acute tonsillitis and quinsy
Diphtheria
Acute epiglottitis in children
Which special condition is life threatening due to toxin production, characteristic pseudo-membrane and is not seen in the UK due to vaccination?
Diphtheria
What is acute bronchitis preceded by?
The common cold
What is the term for “the cold which goes to the chest”?
Acute bronchitis
Give 5 clinical features of the common cold?
- Productive cough
- Fever - minority of cases
- Normal chest examination
- Normal CXR
- May have transient wheeze
Are antibiotics used to treat acute bronchitis?
No
What are these clinical features a sign of: usually preceded by upper respiratory tract infection, worsening of sputum production which is now purulent, more wheezy and breathless?
Acute exacerbation of chronic bronchitis
What is a sign of right heart failure?
Ankle oedema
In acute exacerbation of chronic bronchitis - what 5 features may you find on examination?
- Breathless
- Wheeze
- Coarse crackles
- May be cyanosed
- In advanced disease - ankle oedema
What are the three management methods of an acute exacerbation of chronic bronchitis in primary care?
Antibiotic e.g. deoxycycline or amoxicillin
Bronchodilator inhalers
Short course of steroids in some cases
How would you manage a patient with acute exacerbation of chronic bronchitis in hospital?
Measure arterial blood gases
CXR to look for other diseases
Give oxygen if has respiratory failure
What are cough, pleurisy, haemoptysis, dyspnoea, preceding URTI, abdominal pain and diarrhoea all a symptoms of?
Pneumonia
What are these clinical signs of - fever, rigors, herpes iabialis, tachypnoea, crackles, rub, cyanosis and hypotension?
Pneumonia
What are two investigaitons you would do for pneumonia?
Blood culture
Serology
What are 5 other tests you would do other than blood culture and serology for pneumonia?
Arterial gases FBC Urea Liver function CXR
What is the scoring system used for pneumonia?
CURB65
Explain the CURB65 score?
C - New onset of confusion
U - Urea > 7
R - Respiratory rate >30/min
B - Blood pressure (systolic
What are 4 other severity markers for pneumonia?
Temperature 40
Cyanosis PaO2 30
Multi-lobar involvement
Name the top pathogen in pneumonia?
Strep pneumoniae (pneumococcus)
Name 7 other pathogens in pneumonia, other than Strep pneumoniae (pneumococcus)
H. Influenzae Mycoplasma pneumoniae Influenza Chicken pox - in adult smokers Legionella Coxiella burnetti Chlamydia psittaci
What are the 5 management steps for community aquired pneumonia?
- Antibiotics
- Oxygen maintain SaO2 94-98%
- Fluids
- Bed rest
- No smoking