Chlamydia Flashcards

1
Q

What is the bacteria that causes Chlamydia?

A

Chlamydia trachomatis

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2
Q

What type of bacteria is Chlamydia trachomatis?

A

Gram negative

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3
Q

How is Chlamydia transmitted?

A

Unprotected vaginal / anal / oral sex

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4
Q

What are the different serotypes of C trachomatis? (3 things)

A
  1. Serotypes A-C = ocular infection
  2. Serotypes D-K = classic genitourinary infection
  3. Serotypes L1-L3 = new infection in laway6a
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5
Q

What are the RF for Chlamydia? (5 things)

A
  1. Age under 25
  2. Partner positive for chlamydia
  3. Recent change in sexual parner
  4. Co-infection w another STI
  5. Not using barrier contraception
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6
Q

What are the CF of Chlamydia? (7 things)

A
  1. Asymptomatic (50% men / 70% women)
  2. Lower abd / pelvic pain + tenderness
  3. Dyspareunia (pain @ intercourse)
  4. Cervical excitation
  5. Bleeding (intermenstrual / postcoital)
  6. Abn vaginal discharge
  7. Dysuria
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7
Q

What are some differential Dx that present similar to Chlamydia?

A

Other STIs especially gonnorhoea

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8
Q

What is the best investigation for Chlamydia Dx? (3 things)

A

NAAT test on specimen from:

  1. Vulvo-vaginal swab (best)
  2. Endocervical swab
  3. First catch urine sample
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9
Q

Why is NAAT preferred over microscopy for Chlamydia Dx?

A

Chlamydia too small to be seen in microscopy

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10
Q

What is the Tx for Chlamydia?

A

Abx course

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11
Q

What are the 2 different FIRST line Abx courses recommended for Chlamydia Tx?

A
  1. Doxycycline 100mg BD for 7 days
  2. Azithromycin 1g single dose

(one or the other)

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12
Q

What are the alternative Abx courses for Chlamydia Tx when Doxycycline / Azithromycin are CI? (2 things)

A
  1. Erythromycin 500mg BD for 10-14 days
  2. Ofloxacin 200mg BD / 400mg OD for 7 days
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13
Q

What are pts advised while on Chlamydia Tx?

A

Avoid intercourse + oral sex until completed tx (or 7 days after azithromycin single dose)

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14
Q

Are Chlamydia pt tested to see if they’ve been cured?

A

No, not unless der pregnant / poor compliance / symptoms persist

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15
Q

What are the Complications of Chlamydia? (7 things)

A
  1. PID
  2. Chronic pelvic pain
  3. Infertility
  4. Ectopic preg
  5. Conjunctivitis
  6. Reactive arthritis
  7. Lymphagranuloma venereum (esp in laway6a)
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16
Q

What are some pregnancy related complications of Chlamydia? (5 things)

A
  1. Preterm delivery
  2. Premature rupture of membranes
  3. Low birth weight
  4. Postpartum endometritis
  5. Neonatal infection (conjunctivitis / pneumonia)