ID Flashcards

(88 cards)

1
Q

petechia, red macules that progress to pustules- histology shows granulomas;

can also have purulent conjunctivitis, plaques on umbilical cord , granulomas can be found anywhere

skin findings associated with early onset disease

A

listeria

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2
Q

CMV pearls

A

DNA virus

common presentation - IUGR, small head, enlarged liver, low platelets

treatment with gancyclovir reduces the severity of hearing loss

primary infection is more likely to affect fetus , worse earlier in pregnancy

jobs that work with small kids are higher risk

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3
Q

early onset sepsis pearls

more common in who
MCC bug for term/preterm

A

10x more common in low birth weight
GBS for term, Ecoli for preterm
type 3 GBS is most commonly associated with late onset sepsis

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4
Q

Toxo pearls
How?
Symptoms?
Premies
Tx

A

fecal-oral

kittens

most are asymptomatic

preterm infants may show signs earlier than term- eyes and CNS disease

1 yr treatment with pyrimethamine-sulfadiazine and folinic acid

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5
Q

HSV presentations

A
  1. vesicular rash on skin, eyes, mouth
  2. disseminated disease
  3. CNS disease
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6
Q

HSV pearls

does treatment prevent neurologic outcomes
will everyone have skin lesi

A

treatment with acyclovir does not prevent neurological sequelae of CNS disease

1/3 will not have skin lesions

c-section is preventative is mom has active lesions

infection can happen without active lesions or prior history

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7
Q

omphelitis + recurrent infections + delayed umbilical cord separation

A

Leukocyte adhesion deficiency

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8
Q

CMV precautions

A

standard

passed through secretions, milk, placental , sex

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9
Q

rubella precautions

A

droplet and contact

RNA
respiratory secretions

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10
Q

HSV precautions

A

contact

DNA

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11
Q

toxoplasmosis precautions

A

standard

transplacental or undercooked meat/cat

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12
Q

TB precautions

A

contact and airborne
can be droplet aerosolized, also can get it from mucous membrane contamination , blood or amniotic fluid

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13
Q

varicella precautions

A

airborne and contact

respiratory droplets, contact with raw
DNA

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14
Q

RSV

A

contact

RNA

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15
Q

parvo precautions

A

droplet

DNA

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16
Q

listeria precautions

A

standard

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17
Q

GBS prophy if

A
  1. previous GBS infected infant
  2. GBS bacteruria during this pregnancy
  3. GBS positive
  4. GBS unknown and premature ; prolonged rupture; maternal fever
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18
Q

signs of chorioretinitis by findings

salt and pepper

yellow white exudates

necrotizing

A

salt+ pepper
- syphilis
- rubella

yellow-white exudate
- HSV
-CMV
- candida

necrotizing
- too

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19
Q

galactosemia has increased risk of what

A

Ecoli infections

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20
Q

neonates can get a uti by

A

ascending infection or blood spread

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21
Q

organisms for meningitis

A

GBS
Ecoli - K1
listeria
klebsiella + enterboacter
flu
neisseria

in decreasing order

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22
Q

early onset sepsis organisms

A

GBS #1 40@
ecoli #2 28%
strep especies - 10%
enterococcus and staph 2-3%
listeria <1 %
one source included -non-typable Hflu

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23
Q

late onset sepsis organisms

A

coagulase neg staph #1
staph
pseudomonoas
gbs
ecoli
listeria

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24
Q

chocolate colored like amniotic fluid, rash with granulomas on histology

gram postive rod

late onset meningitis may have increase CSF monos

A

listeria

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25
syphilis can be transmitted
by transplacental or contact with active lesion at delivery
26
syphilis signs Nose Liver Eyes Bone Placenta
copius nasal secretions hyperbili chorioretinitis bilateral destruction of proximal medial metaphysis/ periostitis large placenta in addition to he usually things
27
infections with increased risk of still birth
listeria, syphilis and parvo
28
infection that increases with gestational age
toxo
29
infection that can happen anytime during pregnancy but is worse when acquired later
syphilis
30
infection is more likely at the beginning and end of pregnancy, but more severe if acquired early
rubella
31
infection worse if acquired early
CMV
32
Caoag neg staph infection is real if
2 + cultures from different sites Goes in 15 hrs Exam+ Catheter present >50 CFU
33
Most common cause of conjunctivitis in less than 1 month
Chlamydia
34
Lab finding for neonatal chlyamydia infection
Eosinophilia
35
brain abscesses
citrobacter and enteronbacter
36
ecoli with K1 antigen
increased risk of meningitis
37
galactosemia association
increased UTI with Ecoli
38
initial gram neg treatment
amp/gent double coverage
39
double coverage required for all of treatment gram neg
enterobacter, citrobacter, serrate, pseudomonas
40
associated with chorioamonitis , a positive culture in a baby doesn't mean true infection, can cause pneumonia /sepsis/meningitis
ureaplasma urelyticum treat with erythromycin, if CNS and kid is sypm then tetracycline
41
HSV pearls 1. primary vs secondary lesion at birth 2. of the babies who are infected is it usually a primary or secondary 3. % whos moms were asymptomatic
1. 25-60% of babies with primary lesion will get infected, compared to less than 5% of secondary 2. secondary bc its more common 3. 75%
42
DNA viruses
CMV, HSV, EBC, Varicella, HHV6, Hep B
43
SEM disease
HSV earlier onset most common form of infection skin lesions - papularvesicular, conjunctivitis/chorioretinitis treat to prevent CNS disease risk of neurological sequelae if it reoccurs more than 3 times
44
HSV encephalitis and systemic infection
encephalitis is slightly more common systemic infection has worse outcomes may be liver/adrenal dysfunction, coagullopathy and shock 60% have skin involvement systemic with higher mortality
45
CSF with elevated protein, and pleocytosis- mononuclear cells
HSV
46
detected when HepB is replicating
HepBeAg
47
acute hep infection
HepBsAg
48
chronic infection hep B
positive HepBsAg, Anti Hep-Bc
49
Hep B status unknown
Hep B vaccine in 12 hrs, HBIG in 7 days
50
hep B postive
give vaccine and HBIG in 12 hours
51
anemia and CHF may lead to hypos , myocarditis, thrombocytopenia, neutropenia, liver disease
parvo
52
VZIG- does what for side effect
lengthens incubation time of varicella
53
varicella infection between 8-20 wks
high risk of congenital varicella syndrome
54
varicella infection during second half of pregnancy but more than 21 days prior to delivery
low risk of congenital syndrome
55
varicella between 5 days before deliver and 2 days after
greatest risk of acute infection
56
indications for VZIG
preterm infant less than 28 wks or 1k preterm infant older than 28, more than 1k who's mom never had chickenpox infant who's mom is infected 5 days before delivery to 2 days after infant who is exposed after 2 days of life who's mom never had chickenpox can get it but is not an AAP rec
57
most common GBS serotype
3
58
maternal GBS screening has shown to
only decrease EOS
59
osteomyelitis pearls
1. neonates are a higher risk compared to older kids 2. neonates have more rapid bone formation 3. neonates are more likely to have septic arthritis 4. bony destruction is less common 5. MCC site = metaphysis 6. can lead to ephysistis
60
placenta for CMV
villous damage with thrombosis, colitis with inclusion body cells and hemosiderin
61
placenta for syphilis
hydrops and round cell infiltration caused by maternal immunocytes
62
CMV hearing loss
bilateral progressive correlates with presence of periventricular calcifications sensorineural
63
toxo - worst timing for symptoms vs greatest time for infection
higher risk of infection with later gestation the earlier in pregnancy - worse symptoms
64
toxo workup
1. Ig G + M + A antibodies if positive then send PCRs for urine, CSF and serum
65
confirmation of toxo
Positive IgG after 1 yr IgM after 5 days IgA after 10 days positive PCR
66
maternal treatment for toxo
spiramycin or after 18 wks or during third trimester - pyrimethamine + sulfadiazine
67
supplement with pyrimethamine and sulfadiazine
Folic acid to prevent neutropenia
68
greatest risk of transplacental transmission in 3rd trimester
rubella (1st and 3rd) toxo coxsackie
69
leukoreduction of blood products reduces transmission of
CMV
70
things transmitted in breastmilk
HIV hepB CMV rubella HSV
71
encapsulated organisms
Yes Some Killer Bacteria Have Pretty Nice Capsules yersinia, strep pneumo/salmonella, klebsiella, bacillis anthracis, H flu, pseudomonas, neisseria meningitides , crypoto
72
gram positive that is resistant to all cephalosporins
enterococci
73
beta-lactamase producing bacteria
serrate, pseudomonas, acinetobacter, citrobacter, enterobacter SPACE
74
white spots on umbilical cord and a septic appearing baby
congenital cutaneous candidiasis
75
mcc early viral pneumonia
HSV
76
congenital pneumonia
diagnoses in the first 3 days from aspiration of infected fluid, transplacentally / hematogenous , ascending
77
chlamdyia trachomtis causes what type of pneumonia
late onset - 2-4 weeks of life
78
most common problem for asymptomatic untreated toxo
chorioretinitis
79
fungal infection locations
CNS, eyes, urine and kidneys
80
rash of congenital syph
vesiculobullous mucocutaneous lesions on palm an soles
81
distinguish CMV and rubella
rubella = cataracts
82
HepB infection is higher likelihood if
HBeAg positive and viral load high
83
can infants BF with mothers positive for Hep B
yes with exposure prophylaxis
84
Risk of transplacental transmission of Syphilis
If first figure your seconddegree Syphilis, it’s 60 to 100%!
85
Holder pasteurization and activates, which viruses
HIV and cmv
86
Airborne precautions for
Tb Messes Varicella
87
Contact precautions for
Hsv Enterovirus Rsv Gi bugs
88
Cephalosporins
1 cephalexin 2 cefoxitin 3 cefotaxime, ceftazidime , ceftriaxone 4 cefepime 5 cefteroline