Sexually Transmitted Infections Flashcards
1
Q
What are the risk factors for STIs?
A
- young age
- failure to use barrier contraceptives
- non-regular sexual relationships
- men who have sex with men
- IV drug use
- african origin
- social deprivation
- sex workers
- poor access to advice and treatment of STIs
2
Q
What are the determinants of risky sexual behaviour?
A
- individual factors: low self-esteem, lack of skills, lack of knowledge of the risks of unsafe sex
- external influences: peer pressure, attitudes and prejudices of society
- service provision: accessibility of sexual health services and/or lack of resources like condoms
3
Q
Describe NAATs
A
- nucleic acid and amplification testing (swab in vagina and rotated for 30s) - detects DNA - for chlamydia and n.gonnorhoea - PCR for herpes - 2 week window
4
Q
Describe microscopy, culture and sensitivity testing
A
- for n. gonorrhoea, candida, BV and trichomonas vaginalis
- charcoal swab
5
Q
Describe blood testing
A
- for syphilis, HIV and hepatitis
6
Q
Describe the features of chlamydia
A
- has different serotypes for different types of infection
- D-K = genital infection
- symptoms include vaginal/urethral/anal discharge, post-coital bleeding, epididymal tenderness etc
- can be asymptomatic
7
Q
What are the complications of chlamydia?
A
- pelvic inflammatory disease (associated with infertility, ectopic and pain)
- sexually acquired reactive arthritis
- epididymo-orchitis
- peri-hepatitis
8
Q
What is the management for chlamydia?`
A
- doxycycline 100mg twice a day for a week
- avoid sexual contact for duration of treatment
- partner notification
9
Q
What is LGV?
A
- lymphogranuloma venerum
- caused by one of the 3 invasive serovars of chlamydia (L1/2/3)
- presents as solitary genital lesion, proctitis, lymphadenopathy
- treated with doxycycline
10
Q
Describe the different manifestations of gonorrhoea and the symptoms
A
- penile urethral infection (muculopurulent discharge)
- female urethral infection (increased/decreased frequency or urinartion or dysuria)
- endocervical infection (increased/altered vaginal discharge, maybe lower abdo pain)
- rectal (mostly asymptomatic but can cause anal discharge/discomfort/pain)
- pharyngeal (mostly asymptomatic but can cause sore throat)
11
Q
What is the management for gonorrhoea?
A
- ceftriaxone
- ciprofloxacin
- partner notification and treatment
12
Q
Describe thrush
A
- acute dermatitis of vulva/vagina caused by yeast invasian (candida albicans)
- causes itch, vulval pain, superficial dyspareunia
- curd like white vaginal discharge
13
Q
What is the treatment for thrush?
A
- topical clotrimazole
14
Q
Describe the stages of syphilis
A
- primary: hard genital or oral ulcer at site of infection
- secondary: red maculopapular rash everywhere and moist papules in UG region and mouth
- tertiary: degeneration of NS, aneurysms and granulomatous lesions (gummas) in liver, skin and bones
15
Q
What is the treatment of symphilis?
A
- early (primary, secondary or early latent): benzathine pencilin (single dose)
- late latent, CV and gummatous syphilis: benzathine penicilin ( weekly for 3 weeks)
- neurosyphilis: procaine penicillin once a day for 2 weeks and benzylpenicillin daily every 4hrs for 2 weeks
