Schoenwald - STIs Flashcards
5 p’s of the STI medical interview
partners
practices
protection from std’s
past hx std’s
pregnancy intention
3 pre exposure vaccines
hep B
hep A
HPV
who should get the hep B preexposure vaccine
all sexually active patients
who should get the hep A vaccine
MSM
who should get the HPV vaccine
9-26 yo male and female
male condoms are most effective in preventing
mucosal surface contact infxns
what are mucosal surface contact infxns (4)
GC
CT
trichomonas
HIV
what are skin-skin contact infxns
HSV
HPV
syphilis
chancroid
con of non latex condoms
higher breakage/slippage rate
lambskin: larger pores → infxn
are female condoms an effective barrier to viruses
yes
are spermicides effective in preventing STIs
no
what is N-9
vaginal spermicide
t/f: N-9 can be used as a microbicide or lubricant during anal sex
f!
annual STI screenings for at risk MSM (7)
HIV
syphilis
GC
CT
HPV
HBsAG
Hep C Ab
preferred screening test for GC/CT
NAAT
HPV test for MSM
anal pap smear
screening tests for WSW (5)
HPV
HIV
GC
CT
trichomonas and BV
what is PrEP
pre exposure prophylaxis for HIV
what is opt out HIV testing
notify pt that HIV test will be performed unless they decline
all __ women should be tested for HIV
pregnant
what is expedited partner therapy
treating partner of STI pt
what 3 STIs does expedited partner therapy make you think of
syphilis
GC
CT
t/f: in CO, expedited partner therapy is sanctioned
T!
also recommended by CDC and CDPHE
what are STIs of concern
trick question!
they all are
just needed to toss a softball in here :)
STIs involving ulcers
syphilis
genital herpes
also (uncommon):
lymphogranuloma venereum
chancroid
granuloma inguinale
mc cause of ulcers in young women in the US
HSV
syphilis
5 sources of non infectious ulcers
carcinoma
trauma
psoriasis
fixed drug eruption
yeast
STI ulcers are often classified into
painful vs painless
painful STI ulcers (2)
chancroid
genital herpes simplex
2 STI strains of HSV
HSV 1 and 2
painless STI ulcers (3)
syphilis
lymphogranuloma venereum
granuloma inguinale
6 STIs w. drip/discharge
gonorrhea
chlamydia
nongonococcal urethritis/mucopurulent cervicitis
trichomonas vaginitis/urethritis
vulvovaginal candidiasis
HPV 16 and 18
also cervical ca
what do you think when you see: multiple painful vesicles on erythematous base lasting 7-10 days
HSV
mc infectious etiology of genital ulcerations
hsv 1 and 2
mc cause of genital herpes/recurrent herpes
hsv 2
prodrome of HSV involves
tingling/burning 18-36 hr prior to lesions
primary (first presentation) of HSV lesions are associated w.
fever
bilateral LAD
recurrent HSV does not involve
fever
LAD
in terms of detecting HSV, the majority of infxns are __
undiagnosed
in women, HSV symptoms often occur
during menstrual cycle
what is wrong w. serologic HSV testing
high rate of false positives
__ is the gs dx testing for HSV
but it lacks __
Tzank smear
sensitivity
preferred testing for HSV
culture and PCR
positive findings of Tzanc smear
presence of multinucleated giant cells
tx for first clinical episode of HSV
acyclovir 400 mg tid
OR
famciclovir 250 mg tid
OR
valacyclovir 1000 mg bid
7-10 days for all agents
pharm for HSV is most effective w.in __ hr of lesions
72
tx for episodic HSV
acyclovir
famciclovir
valacyclovir
don’t need to know dosing for this one
tx for daily suppression of HSV
acyclovir 400 mg bid
famciclovir 250 mg bid
valacyclovir 500-1,000 mg qd
t/f: suppression tx for HSV reduces frequency of recurrence by 70-80%
t!
tx for first episode of HSV in pregnant pt
acyclovir
there is a high rate of transmission of HSV to neonate if HSV is transmitted to MOC
near delivery
t/f: pregnant pt can deliver vaginally if asymptomatic
t!
painless papule that ulcerates
chancre → syphilis
incidence of syphilis is high and increasing in what 3 pt populations
HIV
MSM
IVDU
what pathogen causes syphilis
treponema pallidum
active syphilis infxn is classified into (3)
primary
secondary
tertiary
primary presentation of syphilis
chancre/ulcer
describe early chancre
macule/papule → erodes
describe late chancre
clean based
painless
indurated
smooth, firm borders
t/f: syphilis chancre is generally asymptomatic
F! it is HIGHLY infectious
syphilis chancre usually resolves in
1-5 weeks
secondary presentation of syphilis (6)
whole body skin rash (including palms/soles)
LAD
mucous patches
condylomata lata
constitutional sx
neuro sx
flesh colored/hypopigmented macerated papules or plaques
condylomata lata
genitals/anus
which sx of secondary syphilis is highly contagious
condylomata lata
secondary syphilis usually resolves w.in
2-10 weeks
3 neuro sx associated w. secondary syphilis
AMS
stroke
meningitis
tertiary presentation of syphilis
gummatous lesions
cardiovascular syphilis
soft, tumor like growth of tissues
gumma
staging of syphilis
early latent
late latent
define early latent syphilis
reactive testing w.in 1 year of infxn
no sx
define late latent syphilis
reactive testing > 1 year after onset of infxn
OR
timing can not be determined
no sx
gs dx test for syphilis
darkfield examination of exudate/tissue
2 types of serologic tests for syphilis
nontreponemal
treponemal
nontreponemal serologic tests for syphilis
RPR (rapid plasma reagin)
VDRL (veneral dz research lab test)
2 treponemal serologic tests for syphilis
fluorescent trepenemal ab (FTA-AB)
T-pallidum passive particle agglutination (TP-PA)
reactivity of non treponemal tests __,
treponemal tests __
fades over time
stay positive
for serologic testing for syphilis you need to do both __
and __ tests
treponemal
nontreponemal
dx test for neurosyphilis
CSF
3 complications of neurosyphilis
eye dz
uveitis
optic neuritis
maternal rf for syphilis
multiple partners
drug use
transactional sex
late entry to prenatal care
no prenatal care
meth/heroin
incarceration
unstable housing/homeless
tx for primary, secondary, and early latent syphilis
benzathine pen g 2.4 million doses IM x 1 dose
6-12 mo f.u for repeat RPR tx
tx for primary, secondary, and early latent syphilis for pt w. PCN allergy
doxycycline 100 mg bid x 14 days
OR
ceftriaxone
tx for late latent syphilis
benzathine pen g 2.4 million units IM 1 dose weekly x 3 weeks
tx for tertiary syphilis
pen g 2.4 million units IM q week x 3 weeks (bicillin LA)
acute febrile rxn w. HA and myalgia that occurs w.in 24 hr of initiation of tx for neurosyphilis
jarisch-herxheimer rxn
jarisch-herxheimer rxn is associated w. __ syphilis
neurosyphilis
jarisch-herxheimer rxn is usually controlled w. __
but can be life threatening
antipyretics
do you typically treat sex partner of syphilis positive pt
yes!
syphilis screening for pregnant pt
1st prenatal visit
AND
at 28 weeks before delivery if high risk
congenital syphilis is associated w. (4)
fetal demise
cleft palates
mental retardation
nerve damage → vision/hearing
t/f: congenital syphilis is rarely seen
f! → 291% increase from 2015-2019
what test should you order for newly diagnosed syphilis pt and vice versa
HIV
what do you think when you see: painful ulcer + tender inguinal adenopathy
chancroid
chancre is __
and a chancroid is __
painless
painful
really, we couldn’t think of a different name for one of these??
what pathogen causes chancroid
haemophilus ducreyi
chancroids are difficult to test and must be cultured w.in __
1 hour
culture for chancroid have __% sensitivity
80