HIV Flashcards
HIV transmission
Blood - transfusion - injection drug use Sexual intercourse - heterosexual - male to male Perinatal - intrapartum - breast feeding
HIV vs AIDS
HIV= virus without AIDS defining illness
AIDS= HIV + AIDS defining illness OR
= HIV + CD4 count <200
Examples of aids defining illnesses
Candidiasis Disseminated Isosporiasis Kaposi sarcoma Lymphoma Pneumocystis carinii pneumonia
HIV symptoms
Lymphadenopathy
Fever
Unexpected weight loss
Night sweats
Pneumocystis pneumonia gold standard test
Silver stain on sputum sample
Pneumocystis pneumonia new test
PCR based
Pneumocystis pneumonia CXR pattern
bilateral hilar infiltrate- butterfly pattern
Pneumocystis pneumonia symptoms
Fever
Dry cough
SOB
Fatigue
Pneumocystis pneumonia treatment
high dose trimethoprim/ sulfamethoxazole
15-20mg/kg IV q day / 6-8h dosing
Prednisone if <70% PaO2
Pneumocystis pneumonia ppx
at CD4 count <200
trim/sulfa PO- lower dose than tx
Dapsone or pentamidine
Pneumocystis pneumonia ppx alternatives to trim/sulfa
Dapsone or inhaled pentamidine
what is kaposi sarcoma
purplish brownish lesions
body wide- including mouth
most prevalent HIV in US?
HIV 1
HIV enters CD4 via what receptors ?
CCR5 and CXCR4
HIV historic test and confirmation
ELISA
- HIV ab - 4-12 w
Western blot confirmation
HIV new recommended test and confirmation
Combo or 4th gen
- HIV ab and ag - 2-6 w
HIV RNA by PCR
HIV tx typical backbone
2 NRTIs