STI Flashcards

(46 cards)

1
Q

condoms most effective against…

A

chlamydia, gonorrhoea, ulcer disease, HPV (genital secretions)

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2
Q

chlamydia bacteria

A

C. tracheomatis

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3
Q

chlamydia infects…

A

mucosal epithelium eg oral, anal, cervical, vaginal

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4
Q

symptoms of chlamydia (5)

A
urethral/vaginal discharge
rectal bleeding/discharge
dysuria
women: post coital bleeding
men: urethral itch

more than 50 per cent asymptomatic, more commonly women, rectal and throat

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5
Q

treatment of chlamydia

A

doxycycline/azithromycin

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6
Q

investigation for chlamydia

A

first catch urine NAAT/ vaginal or endocervical swab NAAT

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7
Q

natural history of chlamydia (women)

A

PID –> salpingitis –> ectopic/infertility

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8
Q

natural history of chlamydia (men)

A

complications of prostatitis/ epididymitis

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9
Q

gonorrhoea bacteria

A

N. gonorrhoea

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10
Q

gonorrhoea more common in…

A

MSM

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11
Q

gonorrhoea investigation

A

first catch urine/swab NAAT

resistance culture

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12
Q

gonorrhoea treatment

A

ceftriaxone and azithromycin (dual therapy, dec resistance)

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13
Q

gonorrhoea complication

A

disseminated gonococcal infection (female>male) –> longer treatment

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14
Q

genital warts cause

A

HPV (type 6 and 11 – non oncogenic)

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15
Q

genital warts spread

A

skin to skin - hands, feet and genitals

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16
Q

genital warts incubation

A

2wks - 8 yrs

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17
Q

genital warts treatment

A

cryotherapy
topical creams
often self limiting

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18
Q

HPV neoplastic types (intraepithelial neoplasia)

A

16 and 18

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19
Q

HPV vaccination

A

cervarix, gardasil, quadrivalent

20
Q

molluscum contagiosum

A

not warts, caused by pox virus

treated like warts

21
Q

common STI occurence (5) - high risk networks

A
young
MSM
black afro carribean
inner cities
middle youth
22
Q

HIV prevalence in…

A

sub saharan Africa

23
Q

r0 (basic reproductive rate) =

A

BCD

B=probability of transmission
C= rate of partner acquisition
D= duration of infectiousness

24
Q

for STI increase R0 must be…

25
for STI maintenance R0 must be...
=1
26
for deadend network, R0 must be...
<1
27
percentage unaware of HIV status in UK
around 30%
28
highest risk HIV transmission
receptive anal intercourse, then insertive anal intercourse
29
syphilis risk groups(3)
sex workers, MSM, subsaharan africa
30
syphilis bacterium
spirachaete - Treponema pallidum
31
syphilis transmission
vaginal, anal, oral sex
32
syphilis incubation
9-90days (mean = 21)
33
syphilis complications
neurosyphilis - stroke CVS gummatous
34
syphilis presentation
chancre | secondary = polymorphic rash, systemic illness, mucous patches, condyloma lata
35
syphilis investigation
blood test and wound exudate microscopy
36
genital herpes cause
HSV 1/2
37
genital herpes spread
genital, eye, oral (coldsores), anal
38
genital herpes incubation
2days --> several weeks
39
genital herpes symptoms
tingling flu like prodrome small vesicles --> ulcers dysuria latent infection in spinal nerve root ganglia
40
genital herpes diagnosis
swab NAAT
41
genital herpes treatment
aciclovir - 5-10days analgesia salt water lignocaine hosp if severe/ urinary retention often mild and self limiting
42
Hep B risk groups (6)
MSM SE/E Asia central africa e. europe injecting drug users sex workers
43
Hep B spread
vaginal/anal/oral sex, needlestick vertical transmission
44
Hep B virus type
DNA
45
Hep B incubation
8-12 weeks
46
Hep B complicaitons
liver failure/cirrhosis/carcinoma