STIs Flashcards
organism for gonorroea
Neisseria gonorroea
incubation period gonnorrhoea
2-14 days
features gonorrhoea men
10% asymptomatic. anterior urethritis- dysuria and urethral discharge
complications gonorrhoea men
ascending infection
features gonorrhoea women
50% asymptomatic. discharge, pelvic pain, dysuria, intermenstrual bleeding
complications gonorrhoea women
bartholins abscess, perihepatitis, infertility, conjunctival infection in newborn
treatment gonorrhoea
single dose ceftriaxone
what organism causes chlamydia
chlamydia trachomatis
features chlamydia men
anterior urethritis- dysuria and discharge. ascending infection- epididymitis, rectal-proctitis
how many men are asymptomatic in chlamydia
50%
where is the common site chlamydia and gonorrhoea in women
endocervix
how many women are asymptomatic chlamydia
80%
features chlamydia women
discharge, post coital or intermenstrual bleeding, lower abdominal pain. salpingitis ascengin infection.
what can chlamydia do to newborn
mucopurulent conjunctivitis and pneumonia
diagnostic chlamydia
NAAT - nucleic acid amplification test
what are the samples to be tested in chlamydia
men- first voided urine. women- endocervical and urethral swabs
treatment chlamydia
azithromycin single dose or doxy 7 days
how long may NAAT stay positive for after treatment
5 weeks
what organism causes syphillis
treponema pallidum
types of syphilis
congenital, acquired
what is primary syphilis
10-90 days papule develops. ulcerates- firm chancre. painless lymphadenopathy. healing at 2-3 weeks
what is secondary syphilis
4-10 weeks after primary lesion. fever, sore throat, malaise, arthralgia
features secondary syphilis
any organ can be affected- hepatitis, nephritis, arthritis, meningitis; lymphadenopathy, skin rash, superficial ulceration, neuro signs
what happens to untreated syphilis in pregnant woman
70% foetuses infected. 30% stillbirth
what is early latency syphilis
symptoms abate over 3-12 weeks. may recur in 2 years
what is late latency syphilis
no clinical signs for 2 years
what is tertiary syphilis
late benign syphilis. gumma (sometimes ulcerating lesions) can occur anywhere in the skin
treatment syphilis
benzathine penicillin. benzylpenicillin, doxy, erythromycin
what ab should be used to treat syphilis in pregnancy
erythromycin
tests in syphilis
cardiolipin antibody, treponeme-specific antibody. microscopy
features BV
greyish white adherent discharge, fishy odour, amine test >4.7, clue cells on microscopy
treatment BV
metronidazole 5-7 days, topical clindamycin intravaginally 7 days
organism in candida
candida albicans
what can candida do to men
balanitis- inflame head of penis
predisposing risk factors for candida
pregnancy, diabetes, broad spec antibios, corticosteroids
features candida women
pruritus vulvae, vaginal discharge, erythema swelling of vulva broken skin sometimes
features candida men
burning penile irritation after sex
diagnosis candida
microscopic exam of smear from vagina wall. culture of swabs
treatment candida
pessary or cream containing imidazole. clotrimazole. oral fluconazole. itraconazole.
treatment recurrent candida
fluconazole
