URTI, Otitis, & Sinusitis Flashcards

1
Q

What bug has the following?:

  • Gram neg diplococci., catatalase pos., oxidase pos.

Is an aerobe

A

MORAXELLA CATARRHALIS

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2
Q

Name this bug!

A

MORAXELLA CATARRHALIS

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3
Q

List the four drug treatements of Moraxella Catarrhalis:

A
  1. Cephalosporins
  2. Amoxicillin-Clavulanate
  3. TMP-SMX
  4. Fluroquinolones
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4
Q

The following drugs treats which bug?

  1. Cephalosporins
  2. Amoxicillin-Clavulanate
  3. TMP-SMX
  4. Fluroquinolones
A

MORAXELLA CATARRHALIS

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5
Q

What is the function of BIOFILM in Moraxella Catarrhalis?

A

Helps in resisting antibiotics

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6
Q

Which bug is a potent producer of beta lactamase?

A

MORAXELLA CATARRHALIS

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7
Q

Which bug causes middle ear infections (otitis media) in children?

A

MORAXELLA CATARRHALIS

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8
Q

What is the significance of a positive hockey puck sign in Moraxella Catarrhalis?

A

Represents how easily the colonies slide across the agar.

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9
Q

What is the standard media to grow Haemophilus influenzae?

A

Chocolate Agar

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10
Q

What bug is a gram negative coccobacilli?

A

H. influenzae

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11
Q

How is H. influenzae transmitted?

A

Aerosol

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12
Q

When is the best age to vaccinate children against* H. Flu*?

A

2-18 mo.

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13
Q

What are the fastidious growth requirements of* H. influenzae*?

A

Factors X (10) & V (5)

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14
Q

Nicotinamide (NAD) is which factor?

A

Factor V (5)

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15
Q

Hematin is which factor?

A

Factor X (10)

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16
Q

Satellism is associated whith which bug?

A

H. influenzae

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17
Q

H. influenzae grows better near which bug?

A

Staph. Aureus

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18
Q

Is the vaccine for H. influenzae conjugated or unconjugated?

A

CONJUGATED

Hib vaccine

Hib vaccine: Polysaccharide combined- conjugated to protein (diptheria toxoid/outer membrane)

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19
Q

The vaccine for H. influenzae produces antibodies against which of the following bacterial components?

A.) IgA protease

B.) M protein

C.) Polysorbitol phosphate

D.) Protein A

E.) Vi capsule

A

Polysorbitol Phosphate

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20
Q

H. influenzae has what type of capsule?

A

Type b capsule

21
Q

Non typeable H. influenzae (NTHi) is implicated in which 4 diseases?

A
  • sinusitis
  • otitis media
  • smokers w/ COPD
  • pneumonia in children
22
Q

Which bug can cause the following disease patterns: epiglotitis, meningitis, and sepsis?

A

H. influenzae

23
Q

Which virulence factor causes evasion in H. influenzae?

A

IgA protease

24
Q

What are the 3 most common bugs for acute otitis media?

A
  1. H. influenzae
  2. Strep pneumoniae
  3. Moraxella catarrhalis
25
Does a child having a ***vertical*** or ***horizontal*** eustachian tube, result in poor drainage?
**HORIZONTAL**
26
How does a child display when they cannot vocalize that they are experiencing ear pain (otalgia)?
1. Fussy 2. Tugs at their ear
27
The highest incidence of *acute otitis media* is between which age range?
6-24 months
28
What are the 3 risk factors of acquiring an *acute otitis media* inf.?
**1. Day Care Attendance 2. Immunodeficiency 3. Second Hand Smoke**
29
What are 2 protective factors against acute otitis media?
1. Breasfeeding 2. Baby's position while breast feeding
30
What condition has the following complications: - Ruptured tympanic membrane - Purulent effusion - Mastoiditis
Acute Otitis Media
31
MASTOIDITIS in actute otitis media causes what appearance of the ear? A.) Down & Out B.) Up & Out C.) Down & In D.) Up & In
**Up & Out**
32
# Do you give or withold antibiotics in the following scenario?
**Give Antibiotics** ## Footnote Give: *Amoxicillin, Amoxicillin-Clavulanate, 3rd Generation Cephalosporin*
33
# Do you give or withold antibiotics in the following scenario?
**WITHOLD** ## Footnote Instead: *Give Acetaminophen or Ibuprofen for supportive pain control*
34
What drug is considered to be first line of therapy of Acute Otitis Media?
**AMOXICILLIN**
35
What are the two routes of transmission for *Adenovirus*?
1. Respiratory Droplets 2. Fecal Oral
36
What is the structure of *Adenovirus*?
Double stranded DNA virus (naked/ non - enveloped)
37
Which virus has the following as their at risk population: - little children - military recruit - public swimming pools
**ADENOVIRUS**
38
What (3) complications transpire from *Adenovirus* ? | THINK "-itis"
1. Hemorrhagic Cystitis 2. Tonsilitis 3. Viral Conjuctivitis
39
Which at risk population can get vaccinated for *Adenovirus*? A.) Frequnting Public Swimming Pools B.) Military Recruits C.) Little Children
**Military Recruits** | LIVE ATTENUATED VACCINE
40
Which virus is a naked, *positive sense RNA virus*?
**Coxsackie A Virus**
41
What family is *Coxsackie A virus* a part of?
**Picornaviridae Family**
42
Coxsackie A virus infection is common during which season? A.) Winter B.) Fall C.) Summer D.) Spring
**SUMMER**
43
Hand foot and mouth disease is associated with which Coxsackie?
**Coxsackie A**
44
This disease is characterized by a *red vesicular rash* seen on palms and soles. What is it?
**HFM (Coxsackie A)**
45
This disease is characterized by *pharyngeal ulcerations & sore throat*. The vesicles heal without crusting. What disease is it?
**Coxsackie A**
46
How does the virus enter the host for ***HFM*** disease?
Via **Ingestion**
47
What attachment mechanism is utilized in ***HFM*** ?
Capsid protein binds to ICAM-1 (CD54) or CD55
48
Where does the virus replicate in ***HFM*** ?
Enterocytes & Peyer's Patches
49
Assign the location of the lesions in ***HFM*** disease and ***Herpangina*** to either the front of the mouth or the back of the mouth.
**HFM**: *front* of the mouth **Herpangina**: *back* of the mouth