Infections Flashcards
What is the most prevalent genital infection in men?
genital worts
Which infection is increasing in prevalence and is almost only found in men?
symphilis
What is urethritis? What does it present with?
Inflammation of the urethra without an infection of the urethra. Presents with discharge, dysuria and increased urge to urinate.
What is vulvo-vaginitis?
vaginal inflammation leading to itching, discharge, soreness, burning or rawness, odour
Give some non infectious causes of vulvo- vaginitis?
eczema, psoriasis, carcinoma
What causes chlamydia? What is its gram stain
Chlamydia trachomatis - gram negative
What is the most common STI in the UK?
chlamydia
How may chlamydia present?
- usually asymptomatic and is picked up on screening - in males: urethritis, testicular pain +/- swelling
- in females: vaginal discharge, lower abdo pain (esp after sex), fever, post and intercoital bleeding and painful intercourse
- reactive arthirits
- May manifest as conjunctivitis or pharyngitis
How is chlamydia diagnosed in M and in F?
F: vulvovaginal swabs
M: first catch urine sample
How is chlamydia treated?
doxycyline
What is the gram stain for neisseria gonorrhoeae?
Gram negative diplococcus
What membranes may gonorrhoea affect?
cervix, vagina, urethra, ureter, fallopian tubes, ovaries, testis, rectum, throat, eyes
What is the incubation period of gonorrohea?
2-5 days (up to 10)
How do most men with gonorrohea present?
If urethral: 80% get discharge, some dysuria and 1 in 10 asymptomatic
If rectal: asymptomatic of 1 in 10 get bleeding, pain or discharge
Pharyngeal infections usually asymptomatic
How do women with gonorrhoea present?
if endocervical infection: 50% have discharge, 25% lower abdo pain, some intermenstrual bleeding
If urethra: most asymptomatic, some dysuria
Rectal and pharyngeal usually asymptomatic
How is gonorrhoea diagnosed in M and F?
F: vulvovaginal and endocervical swab and +ve gram stain
M: Swab tip of penis if discharge, urine sample if not
How is gonorrhoea treated?
IM ceftriaxone plus oral azithromycin
Where do herpes simplex virus 1 and 2 most commonly infect?
HSV1: oral region and cold sores on labia
HSV2: anogenital infections (penis, anus, vagina)
However, both can infect both regions
How may hepres present?
- oral or genital blisters
- painful ulcers
- dysuria
- discharge
- fever and malaise
- asymptomatic
How is herpes diagnosed?
Viral cultures of vesicular fluid or of ulcer base (PCR may also be used)
How is herpes treated?
Acyclovir, saline bathing, pain releif (lidocaine creams)
Which herpes simplex virus is recurrent
HSV2
What causes genital worts?
Human papillomavirus
Which HPV strains are most common and which are cancer causing?
HPV 16 and 18 are are neoplastic
HPV 6 and 11 most common and non neoplastic