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Flashcards in STIs Deck (35):
1

What are the 2 common pathogens causing cervicitis?

1. chlamydia
2. gonorrhea

2

what are the 5 causes of vaginitis?

-yeast (candida)
-bacterial vaginosis
-trichomonas
-allergy/atrophy
-foreign body

3

What is the Ddx for mucopurulant discharge from vagina?

-chlamydia, gonorrhea, bacterial vaginosis, trichomonas, foreign body (tampon)

4

What are the sx of cervicitis?

-mucopurulant d/c
-asymptomatic**
-dysuria
-altered menstrual bleeding

5

What is the most common bacterial STI in Canada?

Chlamydia Trachomatis

6

What is the main complication of untreated Chlamydia?

-Pelvic inflammatory Disease (PID): infertility, ectopic pregnancy, chronic pelvic pain

7

What is the rx for chlamydia?

azithromycin or doxycycline

-rx partner
-reportable
-no intercourse 1 wk

8

What is the causal pathogen of gonorrhea?

Neisseria gonorrhea

9

What happens w disseminated gonorrhea?

fever, rash, tenosynovitis, polyarthralgias, purulent monoarthritis

10

How to rx Gonorrhea?

-Ceftriaxone IM and Azithromycin PO (bc chlamydia and gonorrhea often package deal)

-rx partner
-reportable
-no intercourse 1 wk

11

Bacterial vaginosis is caused by what pathogen?

Gardnerella vaginalis

12

What are the sx of bacterial vaginosis?

-asymptomatic, thin/gray/white d/d w fishy odour
*not STI

-non reportable

13

What is the rx for bacterial vaginosis?

Flagyl

14

What pathogen causes vaginitis trichomonas?

Trichomonal vaginalis (protozoa)

15

what are the sx of vaginitis trichomonas?

-Asx, or gray/green, frothy d/c w fishy odour
-vaginal/cervical erythema

16

How to rx vaginitis trichomonas?

-Flagyl
-rx partner
-non reportable

17

What are the reportable STIs (to Public Health)?

-Chlamydia
-Gonorrhea
-Trichomonas
-Syphilis
-Hepatitis B

CGTSHB

18

What are the signs/sx of urethritis?

mucopurulent d/c
urinary frequency, dysuria
meatal redness
Asx

19

What are the major pathogens causing urethritis?

1. Gonorrhea (GN intracellular diplococci) 40%

2. Non-gonoccoal urethritis (NGU):
-Chlamydia (15-55%)
-Ureaplasma Urealyticum (20%)

3. Other:
-mycoplasma genitalium
-trichomonas vaginalis
-HPV
-adenovirus (rare)
-Candida Albican (rare)

20

What is the rx for urethritis?

-azithromycin or doxycyline + ceftriaxone IM (if GC)

-abstinence for 7 days
-rx partner (list 60 days)

21

what is the main complication of untreated urethritis in men?

chronic prostatitis

22

What are the sx for epididymitis?

-gradual onset
-unilateral testicular pain/swelling/tenderness
-maybe fever, maybe d/c

-ddx: trauma, torsion, tumour

35 yo: 3/4 coliforms or pseudomonas

23

What is the rx for epididymitis?

if 35: ofloxacin

24

What is the ddx for genital ulcers?

1. Infectious (most common):
-genital herpes HSV 1,2
-syphilis
-chancroid
-Lymphogranuloma venereum (LGV)
-granuloma inguinale

2. Non-infectious
-Behcet syndrome
-fixed drug eruption
-psoriasis
-sexual trauma

25

Describe the sx of genital herpes:

-painful
-multiple vesicles
-ulcerate then crust
-heal within 14-21 d
-constitutional: fever, myalgias, lymphadonopathy

26

Describe HSV:

-dsDNA virus
-retrograde transport to sensory ganglia (latent infx, lifelong)
-incubation (2-21 d)

90% HSV-2 infx= gential
90% HSV-1= oral

27

What is used to rx HSV infection?

-no cure
-rx: anti-virals (lower load): acyclovir, famcyclovir, valacyclovir
-valtrex (to dec transmission to partner by 48%)

28

What is the pathogen causing syphilis?

Treponema Pallidum

29

What are the sx of syphilis?

-painless, non-tender lymphadenopathy

30

How is syphilis rx?

Penicillin IM

31

What pathogen causes chancroid?

Haemophilus Ducreyi

32

What forms of HPV progress to cancer?

HPV 16, 18

33

What are the most common strains of HPV?

HPV 6, 11 (low cancer risk)

34

What rx is used for HPV?

LNO2, Imiquimod, Podophyllin , TCA

35

Describe moluscum contagiosum:

-divot in centre of lesion
-viral dsDNA pox virus
-common in kids
-liquid nitrogen rx