Bacterial and Viral Pneumonia YO

What is the MCC of community acquired bacterial pneumonia

Streptococcus pneumoniae

What is the culture of Streptococcus penumoniae

Gram-positive diplococci that forms pairs or chains

Describe streptococcus pneumoniae sputum

Rust colored or blood tinged

What is Moraxella catarrhalis associated with?

Elderly/immunosuppressed, COPD/Lung disease

What is the culture for Moraxella catarrhalis?

Gram negative diplococci in pairs

How does Haemophilus influenzae sputum look

Yellow-green

Haemophilus influenzae culture:

Gram negative cocci in pairs or chains

What are the 3 atypical bacterial

Mycoplasma pneumoniae

Chlamydia pneumoniae

Legionella pneumophilia

Mycoplasma pneumoniae associated conditions

Bullous myringitis, erythema multiforme or nodosum, urticaria

Are the atypical bacteria HAP, VAP or CAP

CAP

Chlamydia penumoniae

Highest in elderly, milder symptoms with laryngitis

What is the typical source for Legionella pneumophila

Water sources: Lakes, streams, flooding, HVAC, hot tubs

What is the typical presentation of legionella pneumophila?

Severely ill with high fever of 102 and up.

• Bradycardia in presence of fever

• Chest pain

• Neurologic changes

• Rhabdomyolysis (↑CK)

• GI symptoms: N/V/D (watery)

is Staphylococcus aureus associated with HAP VAP or CAP

HAP and VAP

What is Staphylococcus aureus associated with?

Skin infections: MSSA/MRSA or IVDA

Staphylococcus aureus culture

Gram positive cocci in clusters

What is Pseudomonas aeruginosa HAP VAP or CAP

HAP and VAP

What is the typical presentation of Pseudomonas aeruginosa

Green sputum, high rates of sepsis d/t vascular invasion

Culture of Pseudomonas aeruginosa

Gram negative rods (smells like grapes or fruit)

Is Klebsiella Penumoniae HAP VAP or CAP

HAP and VAP

What does Klebsiella Penumoniae commonly affect

Alcohol abuse, diabetics

Klebsiella Penumoniae sputum

Currant jelly sputum

Klebsiella Penumoniae culture

Gram negative rods in pairs or chains

Three zoonotic pathogens

Chlamydia psittaci

Coxiella burnetti

Francisella tularensis

What is Chlamydia psittaci associated with

Bird exposures (parakeets, pigeons poultry)

How to diagnose Chlamydia psittaci

PCR or serology

Treatment of Chlamydia psittaci

Doxycycline x 10-14 days

Francisella tularensis associated with

Rabbits hares or deer ticks/flies

Coxiella burnetti associated with

Sheep goat and cattle exposure via inhaling aerosols

Treatment of Coxiella burnetti

Doxycycline x 14 days

Treatment of Francisella tularensis

Gentamicin x 10 days or doxycycline x 14-21 days