Sexually Transmitted Infections Flashcards
(76 cards)
what are the 3 modes of transmission of HIV?
sexual
parenteral
vertical
what gene is used in serological tests for HIV?
p24
which HIV type has a lower transmissibility/lower progression to AIDS?
HIV-2
what is the pathophys of HIV?
infects CD4 + cells and kills them = suppresses cell-mediated immunity
a patient presents with a frequent sore throat, painful ulcers, lymphadenopathy, fever, headache, N/V/D, weight loss, and arthralgias. Dx?
acute HIV
what can acute HIV be confused with?
mononucleosis
what 3 serologies can be used to diagnose HIV?
IgM
IgG
p24 antigen
what treatment in all patients with HIV?
antiretroviral therapy (ART)
AIDS is primarily a consequence of continuous, high-level replication of _____, leading to virus and immune-mediated killing of CD4 lymphocytes.
HIV-1
stage 1 with CD4 over 1500 with flu-like symptoms: fever, rash, lymphadenopathy, and myalgias. Dx?
acute HIV
stage 2 of HIV characterized by CD4 of 200-1500, the patient becomes sicker with thrush, cervical dysplasia, herpes zoster, and peripheral neuropathy.
clinical latency
stage 3 with CD4 less than 200, the most severe phase of HIV
AIDS
which stage of HIV requires prophylaxis to be started for opportunistic infections?
stage 3 (AIDS)
what physical exam finding can be expected in the latent period of HIV or during chronic HIV without AIDS?
lymphadenopathy
what are the 3 criteria that can indicate AIDS?
CD4 cell count < 200
CD4 % < 14.5
AIDS-defining condition
what will be seen in chest radiograph to indicate pneumocystis jiroveci pneumonia?
diffuse or perihilar infiltrates
what are 3 sputum labs to diagnose pneumocystis jiroveci pneumonia?
wright-giemsa stain
direct fluorescence antibody test (DFA)
bronchoalveolar lavage
what is the treatment for pneumocystis jiroveci pneumonia?
trime-sulfa
caused by intense replication of Epstein-Barr virus that presents with a white lesion on the lateral aspect of the tongue
oral hairy leukoplakia
what are 2 treatment options for oral hairy leukoplakia?
zidovudine
acyclovir
a patient presents with odynophagia or pain on swallowing. Endoscopy shows mucosal plaque-like lesions and biopsy shows yeast and pseudohyphae. Dx? Treatment?
candidal esophagitis
fluconazole
low-grade vascular tumor associated with infection with human herpesvirus 8. presents as purple/brown papular lesions
kaposi sarcoma
what is the treatment for kaposi sarcoma?
anti-retroviral therapy
what is the rule of thumb for HIV treatment?
once treatment is started, patient should never come off it