Micro

Question 1

+ssRNA virus with no envelope that uses ICAM to enter cells?

What diseases?

Answer 1

Picornaviridae
Rhinovirus
Coxsackievirus

Sinusitis, Pharynigitis, bronchitis

Question 2

+ssRNA enveloped virus taht can cause SARS?

Answer 2

Coronavirus

Question 3

-ssRNA virus with Hemagglutanin, Neuroaminidase and Protein F?

Answer 3

Parainfluenza Virus

Question 4

-ssRNA virus with Protein G and Protein F?

Answer 4

RSV

Question 5

Viral agent of 1 yr old with stridor?

Answer 5

RSV

Question 6

Most common cause of bacterial sinusitis?

Answer 6

S. pneumoniae

H. influenzae

Question 7

TX for bacterial sinusitis?

Answer 7

Amoxacillin

Question 8

Gram + rod that grows black on potassium tellurite?

Answer 8

C. Diptheriae

Question 9

Virulence factor responsible for whooping cough?

Answer 9

AB toxin that attacks Gi, increasing cAMP

Question 10

Fungal cause of sinusitis?

Answer 10

Aspergillosis Fumagutus

Question 11

Causes of bacterial bronchitis?

Answer 11

M pneumoniae

C pneumoniae

Question 12

Fried egg with cold hemagglutinin?

Answer 12

M pneumoniae

Question 13

Giesma stain to ID?

Answer 13

C pneumoniae

Question 14

Causative agent of bronchiolitis?

Answer 14

RSV

Question 15

What do Respigram and Palivizumab do?

Answer 15

Protect against RSV bronchiolitis or croup in immunocompromised infants?

Question 16

Most common pneumonia agent in neonates?

Answer 16

S. Agalaactiae (Group B Strep)

Question 17

Most common pneumonia in children?

Answer 17

Viral

M pneumoniae

Question 18

Most common pneumonia in adults under 40?

Answer 18

M pneumonia
C pneumonia
(Atypical)

Question 19

Most common pneumonia in ages >40?

Answer 19

S. pneumoniae

Question 20

Most common hospital-acquired pneumonia?

Answer 20

Gram - rods (Klebsiella)

S Aureus

Question 21

Pnuemonias in immunocompromised?

Answer 21

Klebsiella
S pneumoniae
Pneumocystis jirovecii
Nocardia asteroides (acid fast)

Question 22

Alcoholic pneumonia?

Answer 22

S pneumoniae

Klebsiella

Question 23

IV drug pneumonia?

Answer 23

S aureus

Question 24

Chronic steroid use?

Answer 24

Nocardia

Question 25

Grows on Bordet-Gengou Agar

Answer 25

Bordatella pertussis

Question 26

How does the Influenza virus survive phagocytosis?

Answer 26

Escape from the phagosome

Question 27

Patient presents with cough, chest pain, fever, headache, sore throat. Inflammed oral mucosa and a clear CXR. What disease?

Answer 27

Bronchitis

Question 28

What disease is secondary to influenza in high risk groups?

Answer 28

Pneumonia

Question 29

Where does the influenza virus colonize and replicate?

Answer 29

epithelial lining or respiratory tracy and nasal turbinates

Question 30

Most common post-infectious (influenza) pneumonia?

Answer 30

S pneumoniae | S Aureus

Question 31

Most common causes of rhinitis (2)?

Answer 31

Rhinovirus | Coronavirus

Question 32

Which gram +, catalase -, b-hemolytic organism is Bacitracin sensitive? Resistant?

Answer 32

``` Pyogenes = Sensitive Algalactiae = Resistance (galactic resistance) ```

Question 33

Why give Erythromycin in someone with Pertussis?

Answer 33

Kills bacteria in secretions, decreasing spread. | Also give it as prophylaxis for those in close contact

Question 34

What is the timing for the 3 stages of pertusis?

Answer 34

Stage 1 = 1-2 wks (Flu) Stage 2 = 3wks-2mo (Barking cough) Stage 3 = Recovery after that

Question 35

Who gets the Adenovirus vaccine?

Answer 35

Military personel

Question 36

Difference in causes of pharyngitis for Adults/kids < 3 VS ages 5-15?

Answer 36

Viral = most common cause in Kids < 3/Adults | S pyogenes, H influenzae = Ages 5-15

Question 37

Most common agents that cause pneumonia in COPD patients?

Answer 37

H influenzae = #1 | M Catarrhalis = #2

Question 38

4 most common organisms for post-influenza infection?

Answer 38

S Aureus S Pneumoniae H influenzae S pyogenes

Question 39

How do you confirm influenza infection?

Answer 39

Rapid antigen test from swab or culture and test agains hemoglobin agglutination

Question 40

3 ways to identify bordatella pertusis?

Answer 40

Bordet Gengou agar Immunoflouresence ELISA

Question 41

Which pneumonia cause are asplenic patients at a higher risk for?

Answer 41

H influenza

Question 42

Best way to visualize Legionella pneumophila?

Answer 42

Silver Stain | Cultured on charcoal with Fe and cysteine

Question 43

What population is susceptible to legionella pneumophila?

Answer 43

Elderly Smokers

Question 44

Gram + beaded filaments and weakly acid fast staining. | Causes pneumonia in immunocompromised patients?

Answer 44

Nocardia