HIV Everything Flashcards

1
Q

How many structural genes

A

3
env
gag
pol

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2
Q

env

A

gp120 and gp41

Cleaved from gp160

Forms enveloped glycoproteins

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3
Q

gp120/gp41

A

gp120: Docking glycoprotein (CD4+ tell attachment)
gp41: Transmembrane glycoprotein (Fusion and entry)

Acquired via budding

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4
Q

gag

A

p24: Capsid protein (Conical capsid)

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5
Q

pol

A

Reverse transcriptase, aspartate protease, integrase

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6
Q

gp120

A

binds CD4 and co receptor (CCR5 early, or CXCR4 late)

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7
Q

Homologus CCR5 mutation

A

Immunity

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8
Q

Heterozygous CCR5 Mutation

A

Slower course

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9
Q

DX:

A

Presumptive with ELISA, Sensitive. but not specific.

R/O HIV

Confirm w/ Western Blot (specific)

Look for antibodies to viral proteins. (falsely neg in first 1-2 months) or positive in babies (IgG across placenta)

PCR confirms in window

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10
Q

PCR Viral Load

A

Determine prognosis, monitor effects of drug, Dx.

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11
Q

AIDS Dx:

A
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12
Q

Acute Infection:

A

Wide dissemination, Flu like, Fall in count.

Virus seeding lymphoid organs

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13
Q

Clinical Latency

A

Feel fine, noticable titer of virus, and stable WBC, albeit lower.

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14
Q

Final Crisis

A

AIDS

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15
Q

Prophylaxis:

A
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16
Q

Low grade fever, cough, HSM, tongue ulcer

A
17
Q

Fluffly white cottage cheese lesions

A
18
Q

Hairy Leukoplakia

A

Lateral tongue. EBV,doesn’t scrape

19
Q

Superficial vascular proliferation w/ neutrophils

A

Bartonella henselae

Doxycycline and macrolides

20
Q

Chronic, Water Diarrhea

A
21
Q

Brain Abscess

A
22
Q

Dementia

A

Many causes: Directly associated w/ HIV

23
Q

Encephalopathy

A

Reactivation of JC: PML

Demyelination

24
Q

Meningitis

A

India Ink+ Cryptococcus

25
Q

Retintis, possibly with esophagitis

A
26
Q

NH lymphoma (large cell)

A

Oropharynx, Waldeyer ring

EBV

27
Q

Primary CNS lymphoma

A

Focal or multile, differentiate from toxo

EBV

28
Q

Squamous cell carcinoma

A

HPV, anus or cervix 16 + 18

29
Q

Superficial neoplastic proliferation of vasculature

A

Lymphocytic infiltration HHV-8

Kaposi sarcoma

30
Q

INterstitial Pneuonia w/ Owl eye

A

CMV

31
Q

Invasisve aspergillosis

A

Plerutic pain, hemoptysis, infiltrates

Aspergillus fumigatus

32
Q

PCP

A
33
Q

Penuonia

A

> 200 S. pneuoniae

34
Q

TB like

A