Community acquired pneumonia

​Community acquired pneumonia

Audrin Lenin

Multiple Choice

Ciliostatic factor is produced by which organism to evade host immunity

• Chlamydia pneumoniae

• Mycoplasma pneumoniae

• Streptococcus pneumoniae

• Mycobacterium tuberculosis

Multiple Choice

Which of the following reduces the tracheal mucous velocity to overcome host defences

• Haemophilus influenzae

• Influenza virus

• Mycoplasma pneumoniae

• SARS-COV2

Multiple Choice

Which organism splits the IgA secreted and evades host immunity

• Mycoplasma pneumoniae

• Chlamydia pneumoniae

• Streptococcus pneumoniae

• Haemophilus influenzae

Multiple Choice

All of these are risk factors for aspiration pneumonia - EXCEPT

• Stroke

• Alcohol intoxication

• Cystic fibrosis

• Wearing dentures while sleeping

Altered consciousness - stroke, seizure, anaesthesia, alcohol intoxication

Dysphagia and motility problems

Wearing dentures while sleeping​

Increased microaspiration​

COPD

Cystic fibrosis

Bronchiectasis, immotile cilia syndrome

Heart failure​

Lung cancer​

​

​Impaired airway clearance

​Risk factors for CAP

Smoking

Alcohol

Air pollution

Overcrowding

Homelessness​

Lifestyle and environment

DM

HIV

Post-transplantation

Post-chemotherapy

TNF-alpha inhibitor therapy​

Immunocompromised

​Risk factors for CAP

Multiple Choice

Which of the following is a cause of atypical pneumonia

• Haemophilus influenzae

• Staphylococcus aureus

• Moraxella catarrhalis

• Mycoplasma pneumoniae

Multiple Choice

Which of the following is a cause of typical pneumonia

• Legionella

• Chlamydia pneumoniae

• Streptococcus pneumoniae

• Mycoplasma pneumoniae

​Typical vs. Atypical pneumonia

​"Typical" organisms: S. pneumoniae, H. influenzae, Staphylococcus aureus, group A streptococci, Moraxella catarrhalis, anaerobes, and aerobic gram-negative bacteria

​

"Atypical" organisms: Legionella, Mycoplasma pneumoniae, Chlamydia pneumoniae, Chlamydia psittaci.

​

Multiple Choice

Which of the following causes lobar pneumonia

• Influenza H1N1

• Streptococcus pneumoniae

• Mycoplasma pneumoniae

• SARS-COV2

Multiple Choice

Which of the following causes bronchopneumonia

• Staphylococcus aureus

• Haemophilus influenzae

• Chlamydia pneumoniae

• Klebsiella pneumoniae

Bilateral

Normal vesicular breasth sounds and crepitations

​Atypical organisms​

Bronchopneumonia​

Unilateral

Bronchial breath sounds, increased vocal resonance

​Typical organism

Lobar pneumonia

​Lobar pneumonia vs Bronchopneumonia

Multiple Choice

Pneumonia caused by which organism is associated with exposure to infected parrots

• Mycoplasma pneumoniae

• Chlamydia psittaci

• Strepticoccus pneumoniae

• Pneumocystis jirovecii

Multiple Choice

Which organism will you suspect causing pneumonia in an HIV infected patient with exposure to pigeon droppings

• Mycoplama pneumoniae

• Legionella spp.

• Haemophilus influenzae

• Histoplasma capsulatum

Multiple Choice

Which organism is aerosolized by air-conditioners and causes pneumonia

• Legionella

• Listeria

• Mycoplasma pneumoniae

• Chalmydia pneumoniae

Multiple Choice

A 40 year old man is found unconscious on the road after a binge of alcohol. He develops pneumonia in the ward. Which organism will you suspect among the list

• Klebsiella pneumoniae

• Listeria

• Haemophilus influenzae

• Mycoplasma pneumoniae

Multiple Choice

A patients on ventilator in MICU for 2 weeks develops new onset fever, cough increased oxygen requirement. Which of the following organisms will you suspect?

• Streptococcus pneumoniae

• Haemophilus influenzae

• Legionella

• Acenitobacter baumannii

Multiple Choice

Severe necrotizing pneumonia with pneumatocoeles is seen with which organism?

• Streptococcus pneumoniae

• Staphylococcus aureus

• Pseudomonas aeroginosa

• Klebsiella pneumoniae

Multiple Choice

Red current jelly sputum is seen with

• Klebsiella pneumoniae

• Streptococcus pneumoniae

• Mycoplasma pneumoniae

• Staphylococcus aureus

Multiple Choice

Rusty brown sputum is seen with

• Pseudomonas aeroginosa

• Streptococcus pneumoniae

• Mycoplasma pneumoniae

• Staphylococcus aureus

Multiple Choice

Greenish coloured sputum is seen with

• E. coli

• Proteus mirabilis

• Pseudomonas aeroginosa

• Staphylococcus aureus

Multiple Choice

Which of this organism caused widespread pneumonia during the Vietnam war by being aerosolized from the soil by American helicopeters

• Pseudomonas aeroginosa

• Listeria

• Legionella

• Burkholderia pseudomalaei

Multiple Choice

Patient comes with fever, cough and breatlessnes with loss of smell. Which organism will you suspect?

• Influenza

• RSV

• Adenovirus

• SARS-COV2

​Viral causes of pneumonia

Influenza and parainfluenza

SARS-CoV-2​

Respiratory syncytial virus ​

Adenovirus ​

Human metapneumovirus​

Rhinovirus ​

Multiple Choice

White radiological sign of lobar pneumonia does the black arrow denote

• Tram-track apperance

• Tree-in-bud appearance

• Air-bronchogram

• B lines

Multiple Choice

Antibiotic of choice for Streptococcus pneumoniae community acquired pneumonia

• Penicillin

• Vancomycin

• Ciprofloxacin

• Azithromycin

Multiple Choice

Antibiotic of choice for methicillin susceptible Staphylococcus aureus pneumonia

• Penicillin

• Cloxacillin

• Levofloxacin

• Azithromycin

Multiple Choice

Antibiotic of choice for Haemophilus influenzae pneumonia

• Ciprofloxacin

• Doxycyline

• Amoxicillin

• Azithromycin

Multiple Choice

Antibiotic of choice for MRSA pneumonia

• Penicillin

• Cloxacillin

• Vancomycin

• Ceftriaxone

Multiple Choice

Antibiotic of choice for Mycoplasma pneumoniae pneumonia

• Penicillin

• Ceftriaxone

• Ciprofloxacin

• Azithromycin

Multiple Choice

Antibiotic of choice for Chlamydia pneuminae pneumonia

• Penicillin

• Ceftriaxone

• Ciprofloxacin

• Azithromycin

Multiple Choice

Antibiotic of choice for Pneumocystis jirovecii pneumonia

• Levofloxacin

• Trimethoprim-sulfamethoxazole

• Erythromycin

• Chloramphenicol

Multiple Choice

Antiviral of choice for Influenza infection

• Ribavirin

• Remdesvir

• Oseltamivir

• Tenofovir

Multiple Choice

Drug of choice for Scrub Typhus ARDS

• Penicillin

• Trimethoprim-sulfamethoxazole

• Doxycyline

• Levofloxacin