viral infections Flashcards

(42 cards)

1
Q

which Herpes simplex is predominantly oral and which is predominantly genital?

A

HSV 1 oral

HSV 2 genital

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2
Q

how is HSV transmitted?

A

direct contact

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3
Q

what ganglion will the HSV 1 go to be latent?

A

trigeminal ganglion

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4
Q

True or false?

HSV is neurotropic (meaning nerve loving)

A

true.

in oral leisions HSV 1 goes to trigeminal ganglion to be latent

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5
Q

what is another name for primary herpes?

A

Herpetic Gingivostomatitis

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6
Q

most people acquire their first incidence of primary herpes by what age?

A

at 5 years old

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7
Q

shallow ulcerations with SERPENTINE borders

A

herpetic Ginivostomatis (primary herpes)

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8
Q

Primary herpes can occur on any mucosal surface?

true or false

A

true

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9
Q

red erythematous border with a yellowish surface in the middle is another characteristic along with the serpentine border for what

A

primary herpes (herpetic gingivostomatitis

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10
Q

when can you see intact vesicles in patients with herpes?

A

first 24-48hrs. vesicles rupture after this

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11
Q

what is the lay term for herpes labialis?

A

fever blister

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12
Q

are the blisters in herpetic gingivostomatitis painful?

A

yes

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13
Q

what is the differential diagnosis for primary herpes?

A

trench mouth (ANUG) which has punched out papillae where as primary herpes doesn’t and instead have ulceratoins with serpentine borders

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14
Q

whats the best way to test primary herpes?

A

exfoliative cytology

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15
Q

infected cells show mutinucleation and balooning degeneration of nuclei which is called viral cytopathic effect
and these cells are called Tzanck cells
what virus show this in biopsy?

A

primary herpes

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16
Q

what is the med for primary herpes?

A

acyclovir or valacylovir

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17
Q

when does the antiviral treatment work best for primary herpes?

A

if you catch the leision within the first 2-3 cays

18
Q

what is the symptomatic care for primary herpes?

A

popsicles can be soothing for pediatric patients.

topical anesthetics so patient can eat and drink - important to avoid dehydration

19
Q

what are the two forms of recurrent herpes?

A

recurrent herpes labialis

recurrent intraoral herpes

20
Q

whats another name for hepres labialis?

A

cold sore fever blister

21
Q

what the following clinical symptoms manifestation of?
prodromal itching, tingling, burning, erythema
triggered by UV light exposure or trauma

A

recurrent herpes labialis

22
Q

history of having cold sores right at the commissure,

A

recurrent herpes labialis

23
Q

what is the differential diagnosis with recurrrent herpes labialis?

A

impetigo.

while recurrent herpes labialis lesions recur many times, impetigo only occurs once.

24
Q

is it same medication for primary herpes and recurrent herpes labialis?

A

yes. valacyclovir has the best results

25
which herpes is confined to onlym ucosa bound to periosteum (hard palate and attached gingiva)?
recurrent intraoral herpes
26
cervical lymphoadenopathy
primary herpes (herpetic gingivostomatitis)
27
how do you differentiate immunosuppressed patient from immunocompetent patients when they are affected with hepres?
manifestation of herpes in inmmunosuprressed patients is white raised scalloped borders around the leisions.
28
treatment for immunosuppressed herpes is ?
IV acyclovir
29
herpetic whitlow?
herpes infection contacted with hands
30
is varicella zoster virus a the human herpes virus?
Yes, it is in the family of HHV (human herpes virus) so it has a lot of similarities to HSV. there are about 8 Human herpes viruses
31
how is variclla (chicken pox) zoster virus spread?
direct contact or air borne droplets
32
intensily pruritic vesicles with dew droplets on rose petals type of leisions are clinical manifestatins of what?
varicella (chickenpox)
33
clear vesicle sitting on an erythematous base leisions of what?
varicella
34
a disease that lays dormant in spinal dorsal ganglion
varicella zoster
35
is it same treatment for primary herpes, recurrent herpes and varicella zoster?
yes. acyclovir if detected with in 1 day.
36
what is the difference between varicella zoster (chicken pox) and herpes zoster (shingles) in terms of clinical manifestations?
shingles are VERY PAINFUL. shingles lesions stop at MIDLINE. shingles lesions follow one dermatome that is innervated by single nerve
37
when should you refer shingles to an opthomalogic emergency?
when the tip of the nose has leisions. because tip of the nose is innervated by nasociliary branch of CN V and that means CN V is also involved and that means opthalmic branch of CN V is also involved and will effect the eyes.
38
is it same treatment as chicken pox?
yes but 5x dosage of chicken pox ( or HSV which is same med for chicken pos and HSV -- acyclovir)
39
true or false? HSV = multiple recurrances herpes zoster = one recurrence is typical.
true. | so if they have multiple outbreaks of herpes zoster. start considering immune problems
40
cossackievirus A or B or echovirus | localized to posterior soft palate/ tonsillar pillar region
Herpangina
41
what is CD4 number that is important?
200 cells /uL. if the count is less than that. HIV + patient's blood constitues AIDS
42
what lymph nodes are affected in persistent lymphadenopathy?
cervical lymph nodes are frequently affected including posteror cervical nodes.