Junkins - Infectious Disease Flashcards

1
Q

Complement deficiencies in infants that are Greater in alternative pathway than in the classic pathway

A

Complement deficiency

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2
Q

Early onset Neonatal Sepsis (EONS) is how old?

A

< 6 days old

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3
Q

Late Onset Neonatal Sepsis (LONS) is how old?

A

6 days to 3 mos old

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4
Q

Bacteria that cause neonatal sepsis

A
    1. E. COLI
      1. Group B Strep
      2. Listeria

-also S. aureus and coagulase-negative staph

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5
Q

Bacitracin resistant and causes neonatal sepsis

A

Group B Strep (GBS)

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6
Q

Tx is Penicillin G
or empiric treatment with Ampicillin and Gentamicin

(or 3rd generation cephalosporin)

A

Group B Strep

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7
Q

Only gram-positive organism to produce endotoxin

A

Listeria monocytogenes

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8
Q

Tx:

First line regimen is Ampicillin

Synergize with Gentamicin for CNS infection

Causes endocarditis in neonates

A

Listeria

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9
Q

Tx is Vancomycin

A

Coagulase-negative Staphylococcus

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10
Q

Purple grapes (clusters) and coagulase negative on slide

A

Coagulase-negative staph

*see slide 34

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11
Q

Diagnosis is by the isolation of spores from the stool and confirmed by identification of the toxin in stool samples

A

Clostridium botulinum

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12
Q

Produces a preformed, heat-labile toxin that inhibits Ach release at the neuromuscular junction

A

Clostridium botulinum

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13
Q

Antitoxin therapy includes human-derived botulism immune globulin and is used for infants less than one year old (who ingested honey)

A

C. botulinum treatment

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14
Q

High Yield:

Both are gram-positive cocci

A

Strep and Staph

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15
Q

High Yield:

Gram positive cocci in CHAINS

A

Strep

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16
Q

High Yield:

Gram positive cocci in CLUSTERS

A

Staph

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17
Q

High Yield:

Test that helps differentiate strep from staph

A

Catalase test

18
Q

High Yield:

Test to differentiate members of the genus Staphylococcus

A

Coagulase test

19
Q

High Yield:

  • CATALASE NEGATIVE
  • Gram positive cocci
20
Q

German measles

21
Q
  • Beta hemolytic
  • Bacitracin sensitive
  • PYR positive
A

Group A Strep

22
Q

“Measles” measles

23
Q

M12 (M-protein) strains associated with acute glomerulonephritis (via immune complexes

A

Group A strep

24
Q

Labs: Anti-Streptolysin O (ASO) titers

A

Group A strep

25
Causes impetigo
Group A strep and S. aureus
26
Inhibits G alpha proteins; ultimately results in accumulation of cAMP
A subunit of B. Pertussis exotoxin | over-activates
27
- Gram-positive diplococci - Encapsulated - IgA protease - Lancet-shaped
Streptococcus pneumoniae
28
13 serotypes cause invasive pneumonia
Strep. Pneumoniae *13 valent vaccine
29
One of the most common causes of infant and toddler diarrhea in US
Rotavirus
30
Most common bacterial cause of pneumonia in children less than and more than 5 yrs old
S. Pneumoniae
31
Commonly causes inflammatory diarrhea in people less than one year old
Campylobacter jejuni
32
The magnitude of the neonate's ability to generate immunoglobulin is initially (increased/decreased)
Decreased
33
IgM levels are low are high at birth?
low
34
Most common cause of infant pneumonia
S. Pneumoniae
35
Complement deficiencies in infants are greater in the alternative or classic pathway?
Alternative
36
Neonates are deficient in these components of the complement cascade that lead to killing of organisms, especially gram-negative bacteria.
Terminal cytotoxic components
37
Compared to adults, neonates have a lower and less effective storage pool of these white blood cells
Neutrophils
38
Organisms causing late onset neonatal sepsis
Coagulase-negative Staphylococcus Staphylococcus aureus
39
Mnemonic to identify gram positive cocci
On the office's "staph" retreat, there was NO StRESs * First Aid Step 1, 2015
40
What age group is very susceptible to sepsis?
Neonates
41
CAMP factor + test
Group B Strep