STI's Flashcards
Chlamydia
A: Due to chlamydia trachomatis. Most common STI in UK.
S: Women: asymptomatic or cystitis, lower abdomen pain.
Men: asymptomatic or dysuiria, discharge.
D: Urine sample.
T: Doxacycline, azithromycin, erythromycin.
C: Peri-hepatitis (Fitz-Hugh-Curtis syndrome)
Gonorrhea
A: Caused by neisseria gonorrhea bacteria. Incubates for 2-30 days, symptoms after 4-6 days.
S: Women: Asymptomatic or discharge, lower abdomen pain and pain on intercourse.
Men: Discharge
D: Microscopy and culture of discharge (or urine?), polymerase chain reaction.
T: Cephalosporins (e.g ceftriaxone)
C: Septic arthritis
Syphilis
A: Due to treponema pallidium spirochaete. Can be spread in pregnancy.
S: 1. Primary: Chancre (painless ulcerated papule)
Lymphadenopathy
- Secondary (4-10 weeks): systemic lesions
Fever, malaise, headache, sore throat lymphadeonpathy. - Tertiary (3-15 years): Can be gummatous (Granuloma of liver, bone, skin and testes), cardiovascular (aortitis) or neurological ( CNS infection, Argyll-Robertson pupil, tabes dorsalis)
D: Bloods: VDRL, rapid plasma regain tests and TPHA.
Microscopy.
T: Penicillin
Vaginosis (bacterial)
A: Overload of bacteria in the vagina. (Gardnerella vaginosis)
Douching, having a female partner.
S: A smelly (fishy) discharge, usually white/grey in colour. Sometimes itching or inflammation.
D: Whiff test (potassium hyrdoxide added - should smell extremely fishy), ph >4.5, urine microscopy shows clue cells.
T: Metronidazole (400-500mcg x2/day), Clindamycin 2% cream, for 7 days.
Trichomoniasis
A: This is a parasitic protozoan infection, the result of infection with the flagellated anaerobic trichomonas vaginalis.
S: Men are usually asymptomatic, women may get a fishy-smelling discharge, which is usually green/yellow and frothy. Some have a “strawberry cervix”.
D: Culture and microscopy to show the protazoa ant its flagella.
T: Metronidazole (one dose - 2g)
