Sexually-transmitted Infections

Question 1

What is the most common STI?

Answer 1

Chlamydia

Question 2

How is chlamydia transmitted?

Answer 2

Vaginal
Anal
Oral

Question 3

In what age group is the highest incidence of chlamydia?

Answer 3

20-24 year olds

Question 4

How does chlamydia typically present in a female?

Answer 4

Bleeding
Lower abdo pain
Dyspareunia
Mucopurulent cervicitis

Question 5

How does chlamydia typically present in a male?

Answer 5

Urethral discharge
Dysuria
Urethritis

Question 6

What is the treatment for chlamydia?

Answer 6

Azithromycin

Doxycycline used increasingly due to resistance

Question 7

What kind of organism is N. gonnorrhoea?

Answer 7

Gram negative intracellular diplococcus

Question 8

How does gonnorrhoea typically present in males?

Answer 8

Urethral discharge
Dysuria
Pharyngeal/rectal infections mostly asymptomatic

Question 9

How does gonorrhoea typically present in a female?

Answer 9

Dysuria
Pelvic pain
Vaginal discharge
Asymptomatic in up to 50%

Question 10

Is gonorrhoea sensitive to culture?

Answer 10

Yes

Can also do microscopy or NAAT

Question 11

What is the treatment for gonorrhoea?

Answer 11

Ceftriaxone IM

Azithromycin (prevent chlamydia)

Question 12

If ceftriaxone is contraindicated, what is the 2nd line treatment for gonorrhoea?

Answer 12

Cefixime

Question 13

How long does genital herpes usually last?

Answer 13

14-21 days following incubation of 3-6 days

Question 14

How does genital herpes typically present?

Answer 14

Blistering/ulceration
Pain
Extreme dysuria
Discharge
Lymphadenopathy
Fever

Question 15

Is it more common to get genital herpes via HSV1 or HSV2?

Answer 15

HSV2

Question 16

How is genital herpes treated?

Answer 16

Aciclovir
Topical lidocaine if painful
Saline bathing

Question 17

Viral shedding for HSV1 is higher than HSV2. True/False?

Answer 17

False

HSV2 viral shedding higher than HSV1

Question 18

What is the most common viral STI in the UK?

Answer 18

HPV (causing genital warts)

Question 19

What is the incubation period of HPV?

Answer 19

3 weeks to 9 months

Question 20

Which strain of HPV is the most common cause of warts?

Answer 20

6 and 11

Question 21

How are genital warts caused by HPV treated?

Answer 21

Podophyllotoxin (Warticon)
Imiquimod
Cryotherapy
Electrocautery

Question 22

Which organism causes syphillis?

Answer 22

Treponema pallidum

Question 23

What are the main modes of transmission of syphilis?

Answer 23

Sexual contact
Trans-placental
Blood transfusion

Question 24

What are the 5 stages of syphilis?

Answer 24

Primary
Secondary
Early latent
Late latent
Tertiary

Question 25

What are the features of primary syphilis?

Answer 25

Chancre
Lesions at site of innocculation
Non-tender lymphadenopathy

Question 26

What are the features of secondary syphilis?

Answer 26

Maculopapular rash
Palms and soles affected
Generalised lymphadenopathy
Alopecia
Condylomata lata

Question 27

What are the 2 groups of tests that are down to diagnose syphilis?

Answer 27

Microscopy + PCR to detect organism

Serological testing

Question 28

What are the non-specific serological tests for syphilis?

Answer 28

VDRL

RPR

Question 29

What are the specific serological tests for syphilis?

Answer 29

TPPA
ELISA
FT antibody absorption
INNO-LIA

Question 30

How is syphilis treated?

Answer 30

Penicillin injections