B8-053 STIs Flashcards
when should pregnant women be screened for syphilis? [3]
first prenatal visit
28 weeks
onset of labor
DOC for chlamydia
doxycyline
when is it safe to resume sexual activity following chlamydia?
one week after patient and partner complete treatment
DOC for chlamydia in a patient with tetracycline allergy
azithromycin
also pregnant patients
most common bacterial STI globally
chlamydia
(second is gonorrhea)
DOC for gonorrhea
ceftriaxone
caused by invasive serovars of Ct which invade the regional lymph nodes
lymphogranuloma venereum
painless genital ulcer followed by tender inguinal lymphadenopathy
“groove sign”
lymphogranuloma venereum
important cause of proctitis and proctocolitis in MSM
lymphogranuloma venereum
chlamydia
treatment of lymphogranuloma venereum
doxycyline (extended for 21 days)
reduces bacterial STIs by 66% in MSM when taken within 24 hrs after condomless sex
DoxyPEP
(only indicated for males assigned at birth)
most common non-viral STI worldwide
caused by protozoan
trichomonas
[what stage of syphilis]
painless non-itchy skin ulceration at site of inoculation (chancre)
primary
[what stage of syphilis]
diffuse rash, frequently involving palms/soles
secondary
[what stage of syphilis]
ocular (Argyll-Robertson pupil)
acute hepatitis
nephrotic syndrome
secondary
[what stage of syphilis]
neuro/cardiac issues
gummas
tertiary
treatment of primary, secondary, and early latent syphilis
PenG IM x1
(or can do 14 days of doxy)
treatment of late latent syphilis
PenG IM x3
(or 28 days of doxy)
treatment of syphilis in pregnant patients
PenG IM x2
(must receive PenG, cannot do oral doxy)
tetracyclines are contraindicated in pregnancy
adequate treatment of syphilis is a […] fold reduction in titer
four
(must also increase 4-fold to be considered a new infection in previously treated patients)
initial itching followed by painful skin vesicles
HSV
DOC for HSV
valacylovir
most prevalent STI worldwide
HPV
the HPV vaccine is approved for ages […] to […]
9-45
if a patient is 9-14 years of age, how many doses of HPV vaccine do they need?
2
(6-12 months apart)
if a patient is 15-45 years of age, how many doses of HPV vaccine do they need?
3
(1-2 months, then 6 months)
women aged 25-65 should be screened for cervical cancer via HPV test every […] years
5
what patient population demonstrates the highest benefit to screening for anal cancer?
(via ANCHOR study)
screening PLWH yearly starting at age 35
all patients ages 18-79 should be screened for […] at least once
then repeated based on risk factors
Hep C
all patients ages 15-65 should be screened for […] at least once
then repeated based on risk factors
HIV
(one in 4 new infections occurs in youths aged 13-24)
vaccines available for [3]
HPV
Hep A
Hep B
many cases of gonorrhea/chlamydia are […] encouraging the need for routine screening
asymptomatic
treatment for genital warts
imiquimod
factors that affect the spread of STIs
poverty
marginalization
access to care
substance abuse
stigma
secrecy
