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asymptomatic
MC symptoms of STIs
chlamydia
MC bacterial cause of STI, often asymptomatic, dysuria, abnormal mucopurulent vaginal discharge
chlamydia trachomatis
gram negative coccoid or rod-shaped bacteria that causes chlamydia
chlamydia
causes PID when ascends to upper reproductive tract
NAAT
diagnostic test of choice for chlamydia and gonorrhea
doxycycline 100 mg PO BID x7 days
treatment of chlamydia
azithromycin 1g PO x1 dose
treatment of chlamydia in pregnant patient
Reiter's syndrome
occurs 2-6 weeks after GI/GU infection, triad of conjunctivitis, non-gonococcal urethritis, arthritis
lymphogranuloma venereum
chlamydia trachomatis serotypes L1, L2, L3; primary infection causes painless ulcers, secondary causes inguinal syndrome
doxycycline 100 mg PO BID x21 days
treatment for lymphogranuloma venereum
neisseria gonorrhoeae
gram negative obligate intracellular diplococci bacteria that causes gonorrhea
gonorrhea
2nd most common STI, infection may facilitate HIV transmission, major cause of urethritis & cervicitis, manifests as vaginal pruritus and/or mucopurulent discharge (greenish/yellow)
septic arthritis
inflammation of the joint caused by infection; complication of gonorrhea
gram stain
may be used to diagnose gonorrhea in symptomatic men
ceftriaxone 500 mg IM x1 dose
treatment for gonorrhea
gentamicin, azithromycin
alternatives for gonorrhea if ceftriaxone allergy
pelvic inflammatory disease
infection in the upper genital tract, ascending infection, associated with risk of ectopic pregnancy, chronic pelvic pain, infertility, affected by timing of menstrual cycle; patient presents with lower abdominal/pelvic pain, vaginal discharge, abnormal bleeding, purulent discharge, cervical motion tenderness, rebound tenderness, adnexal tenderness, mass/fullness
prior PID
greatest risk factor for PID
PID
pelvic/lower abdominal pain with at least 1 of the following symptoms: cervical motion tenderness, uterine tenderness, adnexal tenderness
ceftriaxone 500 mg IM + doxy 100 mg BID x14 days + metronidazole 500 mg BID x14 days
outpatient treatment for PID
Fitz-Hugh-Curtis syndrome
perihepatitis, PID, RUQ pain, fibrosis, and scarring from ascending infection
genital herpes
herpes simplex virus infection that appears on vulva, vagina, cervix, perineum, perianal skin; painful cluster of vesicles that lyse and progress to shallow, painful ulcers with a red border
HSV1
oral herpes, associated with cold sores, less likely to re-occur
HSV2
genital herpes
aseptic meningitis
complication of genital herpes; presents with fever, HA, meningismus, occurs in some patients 5-7 days after appearance of genital lesions
viral culture
gold standard diagnostic for genital herpes infection
PCR
gold standard diagnostic for HSV infection of the CNS
Tzanck smear
used to diagnose HSV; multinucleated giant cells
acyclovir, famciclovir, valacyclovir x7-10 days
treatment for genital herpes
human papilloma virus
most common STD in the US, transmitted via intimate skin to skin contact, 90% cleared by body's immune system within 2 years and without treatment, typically asymptomatic
HPV 6, 11
low risk HPV strains
HPV 16, 18
high risk HPV strains for cervical cancer
Gardasil9
HPV vaccine distributed in the US; covers strains 6, 11, 16, 18, 31, 33, 45, 52, 58
condyloma acuminata
genital warts caused by HPV 6 and 11, often asymptomatic, pruritus, bleeding, burning, tenderness/pain, vaginal discharge, soft and fleshy growths 1-5mm but can evolve into cauliflower-like growths
podofilox, imiquimod, sinecatechins
patient administered treatment options for condyloma acuminata
cryotherapy, TCA, surgery
provider administered treatment options for condyloma acuminata
treponema pallidum
spirochete that causes syphilis
primary syphilis
first stage of disease, small painless chancre, appears 3 weeks after infection, heals spontaneously without therapy
secondary syphilis
occurs weeks to months after chancre development, acute systemic manifestations (fever, HA, fatigue, myalgia, LAD), macular-papular skin rash on palms and soles, flat moist papules called condyloma lata (warts)
tertiary syphilis
patients with late syphilis who are symptomatic; may have CV symptoms (aortic aneurysm/insufficiency), gummas, CNS involvement (tabes dorsalis, argyll robertson pupil)
tabes dorsalis
loss of proprioception, associated with tertiary syphilis
argyll robertson pupil
pupil accommodates but does not react to light
latent syphilis
patient is infected by asymptomatic, can be early or late (before/after 1 year of infection)
neurosyphilis
infection of the CNS by t. pallidum
lumbar puncture, VRDL
diagnostic for neurosyphilis
VDRL or RPR then FTA-ABS
serology testing for syphilis diagnosis
non-treponemal
screening test for syphilis
treponemal
confirmatory test for syphilis
benzathine penicillin G 2.4 million units IM x1 dose
treatment for primary, secondary, early latent syphilis
benzathine penicillin G 2.4 million units IM weekly x3 doses
treatment for late latent, tertiary, or unknown syphilis
IV penicillin q4 hours x10-14 days
treatment for neurosyphilis
Jarisch Herxheimer reaction
acute, self-limited, febrile reaction that occurs within the first 24 hours after patient receives therapy; most common after treatment for primary syphilis
15-65
recommended age for HIV screening
HIV-1
type of HIV most common in the US
HIV
RNA retrovirus that targets helper T cells (CD4) and monocytes; initial infection presents as a mono-like illness
antigen immunoassay, western blot
diagnostic of HIV
AIDS
CD4 <200 or defining illness
hepatitis C
most common chronic bloodborne infection in the US
donovanosis
klebsiella granulomatis, rare in the US, affects men twice as much as women, often between 20-40 years; papule or nodule that evolves into large painless ulcer (clean, friable bases with distinct, raised, rolled margins, beefy red)
donovan bodies
seen on dark-staining with donovanosis
azithromycin 1 g weekly until ulcer heals
treatment of donovanosis
chancroid
Haemophilus ducreyi; multiple, painful genital ulcers and tender suppurative inguinal adenopathy
PCR
used to confirm chancroid diagnosis
oral azithromycin or IM ceftriaxone
treatment of chancroid
molluscum contagiosum
DNA poxvirus; small, painless, pearly papules dome with umbilicated center, appear on genital region/inner thigh/buttocks, resolve spontaneously within 6-12 months
pediculosis pubis
crab louse, phthirus pubis, itching in pubic areas
permethrin cream
treatment for pediculosis pubis and scabies
scabies
human itch mite, Sarcoptes scabiei, itching in pubic area, generally worse at night
internal os
upper part of cervix that opens into the endometrium
external os
lower part of the cervix that opens into the vagina
ectocervix
vaginal surface of cervix, seen during speculum exam
columnar epithelium
surrounds external os; plushy, red, resembles lining of uterus
squamous epithelium
continuous with vaginal lining, shiny pink outer layer
squamocolumnar junction
area where two types of cervical epithelia meet
transition zone
area between original SCJ (on ectocervix) and active SCJ; represents newest and least mature cells in cervix; 90% of neoplasms arise from this site; targeted in pap smear
cervical intraepithelial neoplasia
premalignant changes in cervical epithelium, usually at the transformation zone; postcoital bleeding/spotting; can take 3-7 years to develop into cancer
cervical carcinoma
90% caused by HPV, 3rd MC gynecologic cancer, preventable, average age 40-50; asymptomatic early, watery vaginal discharge, odorous, intermittent spotting, postcoital bleeding, abnormal vaginal bleeding, pelvic pain/pressure
SCC
MC type of cervical cancer
adenocarcinoma
AGUS pap smear suggests this type of cervical cancer
colposcopy
diagnostic procedure of choice for cervical cancer
pap smear
screening test for cervical dysplasia/CIN
pap alone every 3 years
cervical cancer screening recommendation age 21-29
pap alone every 3 years, hrHPV testing every 5 years, or hrHPV and cytology cotesting every 5 years
cervical cancer screening recommendation age 30-65
bethesda classification system
classifies the various possible results of cervical cytology, used to determine management guidelines
ASCUS
changes in cervical cells, least concerning of abnormal pap results
LSIL
cervical cells show mildly abnormal changes
HSIL
cervical cells show more serious changes, more likely to be linked to precancer/cancer
ASCH
atypical squamous cells on pap, cannot exclude HSIL
AGC
atypical glandular cells on pap
reflex HPV or repeat pap in 1 year
<25 with no PMH and ASCUS pap next steps
repeat pap in 1 year
<25 with no PMH and ASCUS + HPV next steps
repeat pap in 1 year
<25 with no PMH and LSIL next steps
colposcopy
<25 with no PMH ASC-H or HSIL next steps
colposcopy
>25 with ASCUS, LSIL, HSIL, ASC-H plus HPV next step
colposcopy with directed biopsy
technique of choice for evaluation of abnormal pap; magnified view of abnormal transformation zone and extension into endocervical canal; entire SCJ must be visualized, use acetic acid to highlight dysplastic cells
endocervical curettage
small curette used to collect cells from endocervical canal; used to detect disease farther inside cervical canal where colposcope cannot reach
Monsel's solution
coagulant that helps control bleeding; thick and looks like mustard; applied to cervix and turns into a coffee ground substance
CIN 1
colposcopy result that shows mild changes in the cells that usually go away on their own without treatment
CIN 2
colposcopy result that shows moderate changes
CIN 3
colposcopy results used for severe (high-grade) changes