Table Respiratory pathogens

Question 1

All

Answer 1

The table below lists the more common respiratory pathogens:

-Bronchiolitis: Respiratory syncytial virus
-Croup: Parainfluenza virus
-Common cold: Rhinovirus
-Flu: Influenza virus

Pneumonias:

Streptococcus pneumoniae: most common cause of community-acquired pneumonia

Haemophilus influenzae:
-Community-acquired pneumonia
-Most common cause of bronchiectasis exacerbations
-Acute epiglottitis

Staphylococcus aureus Pneumonia, particularly following influenza

Atypical pneumonias: Legionella & Mycoplasma
Mycoplasma pneumoniae: Atypical pneumonia
-Flu-like symptoms classically precede a dry cough.
-Complications include haemolytic anaemia and erythema multiforme

Legionella pneumophilia: Atypical pneumonia
-spread by air-conditioning systems, causes dry cough.
-Lymphopenia, deranged liver function tests and hyponatraemia may be seen

Pneumocystis jiroveci:
-Common cause of pneumonia in HIV patients.
-Typically patients have few chest signs and develop exertional dyspnea

Mycobacterium tuberculosis: Causes tuberculosis.
-Cough, night sweats and weight loss may be seen

Question 2

-Bronchiolitis:

Answer 2

Respiratory syncytial virus
Supportive

Question 3

-Croup:

Answer 3

Parainfluenza virus
Oral dexa

Question 4

-Common cold:

Answer 4

Rhinovirus

Question 5

-Flu:

Answer 5

Influenza virus

Question 6

Most common cause of community-acquired pneumonia

Answer 6

Streptococcus pneumoniae

Question 7

-Community-acquired pneumonia
-Most common cause of bronchiectasis exacerbations
-Acute epiglottitis

Answer 7

Haemophilus influenzae:

Question 8

Pneumonia, particularly following influenza

Answer 8

Staphylococcus aureus

Question 9

Atypical pneumonias:

Answer 9

Legionella & Mycoplasma

Question 10

-Atypical pneumonia
-Flu-like symptoms classically precede a dry cough.
-Complications include haemolytic anaemia and erythema multiforme

Answer 10

Mycoplasma pneumoniae

Question 11

-Atypical pneumonia
-spread by air-conditioning systems, causes dry cough.
-Lymphopenia, deranged liver function tests and hyponatraemia may be seen

Answer 11

Legionella pneumophilia

Question 12

-Common cause of pneumonia in HIV patients.
-Typically patients have few chest signs and develop exertional dyspnea

Answer 12

Pneumocystis jiroveci:

Question 13

-Causes tuberculosis.
-Cough, night sweats and weight loss may be seen

Answer 13

Mycobacterium tuberculosis