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30 Cards in this Set
- Front
- Back
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When does the RPR Test become reactive
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within 1-4 weeks of infection
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When does the RPR test become non-reactive
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within 1 yr of treatment
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in situations of passive transfer of antibody to baby when does the RPR become non reactive
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3 months
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What is VDRL
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Venereal Disease Research Laboratory
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What is VDRL used for
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it is a test to detect syphilis in the CSF
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How do you determine if the VDRL is positive
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antibodies to plasmin reagin is the serum or CSF will bind to antigen in the test solution and cause flocculation
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What must be done if the patient is positive for VDRL
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FTA-ABS
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What test is need to screen a patient for chlamydia
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EIA-enzyme immunoassay
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What type of body fluid can be tested when trying to identify chlamydia
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urine and urethral swab
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how do you know when a patient is positive for Chlamydia
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the reagents will change color
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What must be done if a patient has a positive chlamydia EIA
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a fluorescent antibody staining
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what is the most commonly performed test for diagnoisis of acute HSV infection
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HSV Viral culture
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where is the sample retrieve when testing for HSV
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at the base of the lesion
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if the patient is positive for HSV what must be done
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gG1 antigen for HSV-1 and gG2 for HSV2
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What is the immunodeficiency virus
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retrovirus that infects CD4 cells and is transmitted in semen and other body fluids
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when do antibodies to HIV appear
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2-4 wks after exposure
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how are antibodies to HIV detected
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EIA
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If you patient has a positive EIA test for HIV what must be done
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Western blot test
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How are HIV antigen separated in the Western blot test
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electrophorectically
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What if the patient has a negative western blot test
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then the patient is not infected or too soon since infect to detect antibodies
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What if a patient has a positive western blot test
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then the patient has HIV it confirms the diagnosis
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what if the test for HIV in the western blot test comes back with indeterminate results
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repeat test within several weeks
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what causes diphtheria
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corynebacterium diphtheria
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what is corynebacterium diphtheria
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it is a gram positive organism that produces a toxin and causes diphtheria
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What does the toxin from diphtheria do
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it inhibits cellular protein synthesis resulting in cell death and tissue necrosis
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What does the toxin from diphtheria form
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it forms a membrane which adheres to tonsils, pharynx and nose
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What's the schick test
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The test to determines susceptibility to diphtheria infection
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In the schick test, if the individual is not immune to the toxin how long will it take the area to become red
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within 4 to 7 days
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If the individual is immune to diphtheria what will do you expect to happen in the schick test
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no inflammation, test not routinely don in the US cause most children are immunized
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What causes typhoid fever
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salmonella typhi
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