Obstetrics and Gynaecology 2 Flashcards
(417 cards)
What is the bacteria that causes Chlamydia?
Chlamydia trachomatis
What type of bacteria is Chlamydia trachomatis?
Gram negative
How is Chlamydia transmitted?
Unprotected vaginal / anal / oral sex
What are the different serotypes of C trachomatis? (3 things)
- Serotypes A-C = ocular infection2. Serotypes D-K = classic genitourinary infection3. Serotypes L1-L3 = new infection in laway6a
What are the RF for Chlamydia? (5 things)
- Age under 252. Partner positive for chlamydia3. Recent change in sexual parner4. Co-infection w another STI5. Not using barrier contraception
What are the CF of Chlamydia? (7 things)
- Asymptomatic (50% men / 70% women)2. Lower abd / pelvic pain + tenderness3. Dyspareunia (pain @ intercourse)4. Cervical excitation5. Bleeding (intermenstrual / postcoital)6. Abn vaginal discharge7. Dysuria
What are some differential Dx that present similar to Chlamydia?
Other STIs especially gonnorhoea
What is the best investigation for Chlamydia Dx? (3 things)
NAAT test on specimen from:1. Vulvo-vaginal swab (best)2. Endocervical swab3. First catch urine sample
Why is NAAT preferred over microscopy for Chlamydia Dx?
Chlamydia too small to be seen in microscopy
What is the Tx for Chlamydia?
Abx course
What are the 2 different FIRST line Abx courses recommended for Chlamydia Tx?
- Doxycycline 100mg BD for 7 days2. Azithromycin 1g single dose(one or the other)
What are the alternative Abx courses for Chlamydia Tx when Doxycycline / Azithromycin are CI? (2 things)
- Erythromycin 500mg BD for 10-14 days2. Ofloxacin 200mg BD / 400mg OD for 7 days
What are pts advised while on Chlamydia Tx?
Avoid intercourse + oral sex until completed tx (or 7 days after azithromycin single dose)
Are Chlamydia pt tested to see if they’ve been cured?
No, not unless der pregnant / poor compliance / symptoms persist
What are the Complications of Chlamydia? (7 things)
- PID2. Chronic pelvic pain3. Infertility4. Ectopic preg5. Conjunctivitis6. Reactive arthritis7. Lymphagranuloma venereum (esp in laway6a)
What are some pregnancy related complications of Chlamydia? (5 things)
- Preterm delivery2. Premature rupture of membranes3. Low birth weight4. Postpartum endometritis5. Neonatal infection (conjunctivitis / pneumonia)
What is the bacteria responsible for Gonorrhoea?
Neisseria gonorrhoeae
What type of bacteria is Neisseria gonorrhoea?
Gram negative
How does Gonorrhoea spread?
Unprotected vaginal / oral / anal intercourse
Who does Gonorrhoea most commonly affect?
MSM under 25
What are the RF for Gonorrhoea? (5 things)
- Age under 252. MSM3. Urban areas4. Hx of STIs5. Multiple partners
What are the CF of Gonorrhoea? (5 things)
- Asymptomatic (90% men / 50% women)2. Lower abd / pelvic pain + tenderness3. Dyspareunia4. Discharge (purulent: green / yellow) (odourless)5. Dysuria
What are some Differential Dx that present similarly to Gonorrhoea?
Chlamydia
What is important to do when investigating someone w sus Gonorrhoea?
Full STI screen (bc STIs can co-exist)