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55 Cards in this Set

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Case: 25-year old woman presents with a foul-smelling vaginal discharge. She has a greenish, frothy discharge and a "strawberry cervix" noted on exam.



What is the most likely organism causing this infection?

Trichomonas vaginalis

Case: 25-year old woman presents with a foul-smelling vaginal discharge. She has a greenish, frothy discharge and a "strawberry cervix" noted on exam.



What is the expected microscopic finding?

Motile, flagellated trichomonads, and many WBCs

Case: 25-year old woman presents with a foul-smelling vaginal discharge. She has a greenish, frothy discharge and a "strawberry cervix" noted on exam.



What is the recommended treatment?

Metronidazole 2g by mouth in a single dose for both the patient and her sexual partner.



Metronidazole 500mg BID for a week is an alternative regimen.

What are the common causes of vaginitis?

- Candida albicans


- Trichomonas vaginalis


- Gardnerella vaginalis

A patient with vaginitis and recent antibiotic use is most likely to have what cause?

Candida albicans (because antibiotic may alter normal vaginal flora and allow the overgrowth of a fungal organism)

A patient with vaginitis and diabetes mellitus is most likely to have what cause?

Candida albicans (predisposed to yeast infections)

A patient with vaginitis and a history of multiple sexual partners is most likely to have what cause?

A sexually transmitted infection, such as trichomonas

What are the typical signs/symptoms of candidal vaginitis?

- Thick discharge


- Significant pruritus

What are the typical signs/symptoms of bacterial vaginosis?

- Thinner discharge


- "Fishy" odor

What are the typical signs/symptoms of trichomonas vaginitis?

- Frothy discharge


- Patient's cervix is frequently very erythematous

How do you establish the cause of vaginal discharge?

Microscopic exam of discharge


- Sample is examined as a "wet mount" (mixed with small amount of saline) and as a "KOH prep" (mixed with small amount of 10% KOH)

What do you look for on "wet mount"?

- Evaluate normal epithelial cells


- Look for WBCs, RBCs, clue cells, motile trichomonads

What do you best visualize on "KOH prep"?

Hyphae or pseudohyphae of Candida

What is the definition of bacterial vaginosis (type of organism, pH)?

Condition of excessive anaerobic bacteria in the vagina, leading to an alkaline discharge

What is the definition of candida vulvovaginitis?

Vaginal and/or vulvar infection caused by Candida species, usually with heterogenous discharge and inflammation

What is the definition of Trichomonas vaginitis?

Infection of the vagina caused by the protozoa Trichomonas vaginalis, usually associated with a frothy green discharge and intense inflammatory response

How likely is a woman to have an episode of vulvovaginal candidiasis in her lifetime?

>75%

What are the presenting symptoms of vulvovaginal candidiasis?

- Thick, whitish discharge


- No odor


- Significant pruritus of external and internal genitalia

What is the appearance of patients with vulvovaginal candidiasis?

Vaginal area can be edematous with erythema present

What is the typical pH associated with vulvovaginal candidiasis?

4.0 - 5.0 (normal)

How do you diagnose vulvovaginal candidiasis?

Confirmed by wet mount or KOH prep showing budding yeast or pseudohyphae; fungal cultures are not needed to confirm the diagnosis (but they can be useful if the infection recurs or is unresponsive to treatment)

How should you treat a patient with vulvovaginal candidiasis?

- Uncomplicated can be treated effectively with short-term intravaginal preps (creams or vaginal suppositories) or single-dose oral therapies (fluconazole 150 mg)


- Complicated or recurrent infections can be treated with higher doses for 10-14 days followed by 6 months of maintenance therapy to reduce chance of recurrence

Do sexual partners need to be treated for vulvovaginal candidiasis?

Not indicated unless symptomatic (e.g., man partners with balanitis = inflammation of glans)

How long does trichomoniasis take to incubate prior to presentation?

3-21 days post-exposure

What factors can predispose to trichomoniasis?

- Multiple sexual partners


- Pregnancy


- Menopause

What is the presenting complaint for trichomoniasis?

- Copious amounts of thin, frothy, green-yellow or gray discharge


- Malodorous


- May have vaginal soreness or dyspareunia


- Symptoms may start or be exacerbated during the time of their menses

What findings might there be on vaginal exam in a woman with trichomoniasis?

- Cervix may have a "strawberry" appearance (red and inflamed with punctations)


- May also have redness of vagina and perineum

- Cervix may have a "strawberry" appearance (red and inflamed with punctations)


- May also have redness of vagina and perineum

How do you diagnose trichomoniasis?

Wet mount prep can demonstrate motile trichomonads, although cultures may be necessary because of significant number of false negatives

What is the recommended treatment for trichomoniasis?

Oral metronidazole, given in a single 2g oral dose or a 1-week regimen of 500mg BID (for both patient and partner)



Should also screen for other STIs

What causes bacterial vaginosis?

Normal vaginal bacteria are replaced with overgrowth of anaerobic bacteria and G vaginalis

What is bacterial vaginosis associated with?

Multiple sexual partners

What are the diagnostic criteria for bacterial vaginosis?

3 of 4 criteria:


- Thin, homogenous vaginal discharge


- Vaginal pH >4.5


- Positive KOH whiff test (fishy odor after adding 10% KOH to sample)


- Presence of clue cells on wet mount

How do you treat bacterial vaginosis?

Oral or topical vaginal prep of metronidazole or clindamycin; no advantage to either regimen but women do report more satisfaction with vaginal prep



No need to test / treat sexual partners

Should you check for bacterial vaginosis in pregnant women? Why or why not?

Treatment of BV in asymptomatic pregnant women may reduce the incidence of preterm delivery

What is mucopurulent cervicitis?

Infection by Chlamydia or Gonorrhea that causes purulent or mucopurulent discharge from the endocervix, may be associated with vaginal discharge and/or cervical bleeding

How often is chlamydial infection asymptomatic?

70% in women

How often is gonorrheal infection asymptomatic?

50% in women

What is the gold standard for diagnosing chlamydia / gonorrhea?

Culture of the cervical discharge

How should you treat suspected chlamydia / gonorrhea infections?

Empiric treatment should be considered in areas of high prevalence of infection or if follow-up is unlikely

What are the treatment recommendations for gonorrhea?

Ceftriaxone 125 mg IM


- Quinolone antibiotics (e.g., ciprofloxacin) are NO longer recommended due to resistance

What are the treatment recommendations for chlamydia?

Doxycycline 100 mg orally BID for 7 days OR


Azithromycin in single 1g oral dose when compliance is a concern



Recommended to treat sexual partners

What is pelvic inflammatory disease (PID)?

Inflammation of the upper genital tract, including pelvic peritonitis, endometritis, salpingitis, and tuboovarian abscess caused by infection with gonorrhea, chlamydia, or vagina/bowel flora

How do you diagnose pelvic inflammatory disease (PID)?

- Lower abdominal tenderness +


- Adnexal tenderness +


- Cervical motion tenderness


Without other explanation of illness is enough to diagnose PID

What other criteria enhance the specificity of the diagnosis of pelvic inflammatory disease (PID)?

- Fever >101 degrees F


- Abnormal cervical or vaginal discharge


- Elevated sed rate


- Elevated C-reactive protein


- Cervical infection with gonorrhea or Chlamydia

What is the way to definitively diagnose pelvic inflammatory disease (PID) which is not often used?

- Laparoscopic findings consistent with PID


- Endometrial biopsy showing endometritis


- U/S exam findings showing thickened fluid-filled tubes with or without free pelvic fluid or tuboovarian complex

How do you differentiate pelvic inflammatory disease (PID) from ectopic pregnancy?

Pregnancy test - should be performed in all patients suspected of having PID

How should you determine the treatment plan for a patient with pelvic inflammatory disease (PID)?

Consider pregnancy status, severity of illness, and compliance

What factors require in-patient treatment with IV antibiotics for pelvic inflammatory disease (PID)?

- Pregnancy


- HIV


- Severe disease

What are the oral regimens for pelvic inflammatory disease (PID)?

Regimen A:


- Ceftriaxone 250 mg IM single dose OR Cefoxitin 2 g IM with Probenecid 1g PO given concurrently


- PLUS Doxycycline 100 mg PO BID for 14 days


- With or without Metronidazole 500 mg PO BID for 14 days



Regimen B:


- Cefotaxime 1g IM single dose OR Ceftizoxime 1g IM single dose


- PLUS Doxycycline 100 mg PO BID for 14 days


- With or without Metronidazole 500 mg PO BID for 14 days

What are the parenteral regimens for pelvic inflammatory disease (PID)?

Regimen A:


- Cefotetan 2 g IV q12h OR Cefoxitin 2 g IV q6h


- PLUS Doxycycline 100 mg PO or IV q12h



Regimen B:


- Clindamycin 900 mg IV q8h


- PLUS Gentamicin 2 mg/kg loading dose followed by 1.5 mg/kg IV q2h



Regimen C:


- Ampicillin / Sulbactam 3 g IV q6h


- PLUS Doxycycline 100 mg PO or IV q8h

What are the potential complications of PID?

- Potential for recurrence


- Development of tuboovarian abscess


- Chronic abdominal pain


- Infertility


- Increased risk of ectopic pregnancy

A 24-year old nulliparous woman is noted to have a bothersome vaginal discharge. On exam, she is found to have a homogenous discharge with a fishy odor.



Which is the most likely finding on examination of the discharge?


a) motile protozoa on wet mount


b) pH >4.5


c) strawberry cervix


d) budding hyphae on KOH exam

pH >4.5



Discharge of homogenous and fishy odor is most likely bacterial vaginosis associated with an alkaline pH. Partner treatment is not necessary for bacterial vaginosis. Oral metronidazole is one treatment.

A 38-year old woman complains of vaginal discharge and irritation. She notes having had a UTI 10 days previously, with resolution of her symptoms.



What is the best therapy for her condition?

Oral fluconazole



This patient most likely has candida vulvovaginitis, since her discharge appeared after her cystitis, likely treated with antibiotics. A treatment for this includes fluconazole or topical azalea agents such as miconazole

A 24-year old woman is noted to have lower abdominal tenderness, cervical motion tenderness, and a vaginal discharge. She has a low grade fever of 100.5.



What is the best therapy for her condition?

Ceftriaxone IM + Doxycycline orally

What STIs should you check for in a patient with another STI?

- HIV


- Hepatitis B, C


- Syphilis