Syphillis Flashcards
the cause of syphilis, is an anaerobic bacterium that cannot be cultured in vitro.
Treponema pallidum
What is primary syphillis
Treponema invade the tissue locally creating a chancre. Some bacteria drain into the lymphatics into the nodes. The chancre site as well as at the node sites humoral and cellular responses are activated
What secondary syphillis
Systemic spread of bacteria…immune system able to suppress…spontaneous resolution of skin lesions even with nontx
Medical history and serologic studies show that syphilis is present, but the individual has no clinical manifestations. Transmission is possible.
Latent syphillis( secondary)
most severe stage, involving significant morbidity and mortality.
Tertiary syphillis
incubation period of syphilis ranges
12 days to 12 weeks averaging 3 weeks
What are the stages of syphillis
Primary stage 12d-12 weeks average 3 weeks. Chancre at the sight of entry that spontaneously heals in 2-8 weeks
Secondary 6 weeks after the chancre. Systemic non specific symptoms: malaise, fever, variable systemic symptoms, including low-grade fever, malaise, sore throat, hoarseness, anorexia, generalized adenopathy, headache, joint pain, and skin or mucous membrane lesions or rashes. Cutaneous (skin) rashes. Development of condyloma lata
Latent or tertiary.
serologic testing for syphillis
Nontreponemal antigen tests, which demonstrate the presence of reagin (a group of antibodies present in syphilis) in serum, provide indirect evidence of infection. Examples of nontreponemal analysis are the Venereal Disease Research Laboratory (VDRL) antigen and the rapid plasma reagin (RPR)
Treponemal tests are serologic-specific tests that are used to assess antibody response to T. pallidum and include the fluorescent treponemal antibody absorption (FTA-ABS) test and the passive particle agglutination (TP-PA) assay
Preferred treatment for all stages of syphilis
Injection of Penicillin G. If the individual has manifested signs of the disease for less than 1 year, a single intramuscular dose is appropriate. If signs have been present for more than 1 year, the treatment is three weekly injections.
Nonpregnant women who are allergic to penicillin may receive #####
oral doxycycline, 100 mg twice daily for 14 days.