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39 Cards in this Set
- Front
- Back
phase I of HIV infection
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asymptomatic phase
CD4 count > 500 cells/μL of blood flu-like symptoms |
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phase II of HIV infection
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CD4 count around 200 cells/μL of blood
weight loss, fatigue, diarrhea, infections, etc. |
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phase III of HIV infection
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late symptomatic
CD4 count < 200 cells/μL of blood full-blown AIDS |
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tests for a number of antibody proteins
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ELISA
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is ELISA very sensitive or specific?
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ELISA is very sensitive
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Is a western blot test very sensitive or specific?
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western blot is very specific
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test used for HIV detection with neonatal infection and with indeterminate serology
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DNA PCR
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one positive screening test is sufficient to diagnose HIV when pts. meet clinical stage III or IV of HIV infection
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WHO test
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mot useful test for assessing immune function
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CD4 cell count
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chlamydia (CT)
gonorrhea (GC) syphilis trichomoniasis are caused by |
bacteria
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most common STD in the U.S.
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HPV
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most common reportable STD
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chlamydia
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leading cause of preventable infertility in women
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chlamydia
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what symptoms do most pts. infected with chlamydia present with?
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none, most are asymptomatic
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what will a child with a chlamydial infection present with?
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conjuntivitis and pneumonia
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who should be tested for chlamydia if a partner is infected?
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partners during the 60 days preceding the diagnosis
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most important risk factor for chlamydial reinfection
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untreated partner
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treatment for chlamydia
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azithromycin
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resistance to medication is an increasing problem with which STD
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gonorrhea
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syphilis is caused by
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Treponema pallidum
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primary syphilis
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chancre (painless) on genitals (avg. 21 days after infection)
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secondary syphilis
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red or reddish brown rash on soles of feet, palms, and trunk, mucous membrane lesions, condyloma lata, patchy hair loss
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tertiary syphilis
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difficult coordinating muscle movements, paralysis, numbness, gradual blindness, and dementia; affects the posterior column "tabes dorsalis"
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treatment of syphilis
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penicillin G - Bicillin L-A
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trichomoniasis is caused by
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trichomonas vaginalis (flagellated anaerobic protozoa)
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how does trichomoniasis present in men and women
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man are usually asymptomatic, but can get urethritis
women have a malodorous yellow-gray discharge with irritation and vulvar itching |
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orolabial herpes
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HSV 1
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genital herpes
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HSV 2
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most transmission of genital herpes occurs
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during delivery
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virus enters through microscopic breaks in skin and causes painful vesicles and malaise
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genital herpes
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virus becomes latent in nerve cells along spinal cord; reactivated by trauma, fever, stress
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genital herpes
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asymptomatic shedding is a problem with which STD
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genital herpes
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treatment for both acute and chronic HSV1 and HSV 2
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antiviral (Zovirax, Valtrex, Famvir)
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what happens to most people who get infected with HPV?
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nothing; the body's immune system usually eliminates HPV infection
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infection can occur through nonpenetrative sexual contact
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Human Papilloma Virus
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anogenital warts are associated with
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HPV 6 and 11
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HPV types that are more likely to persist
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HPV 16 and 18
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most important risk factor for precancer and invasive cervical carcinoma
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persistent HPV infection
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HPV vaccine
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Gardasil (HPV types 6, 11, 16, 18)
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