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39 Cards in this Set

  • Front
  • Back
phase I of HIV infection
asymptomatic phase

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