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SEXUALLY TRANSMITTED INFECTIONS

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SEXUALLY TRANSMITTED INFECTIONS (STI)
Chlamydia - Chlamydia trachomatis
Sexually transmitted infection with an often-asymptomatic clinical course with serious sequelae.
Sexually
active
Risk factors:
New sexual partner
Multiple sexual partners or partners of person with multiple partners
Lower socioeconomic groups
Age < 21 years
Assessment Findings:
FEMALES
Often asymptomatic
MALES
Friable
Vaginal
Dysuria Urethritis Dysuria Proctitis Epididymitis Prostatitis
cervix
discharge
Nonpharmacologic Management
Education PID is a common sequelae of untreated chlamydia
Abstinence until treatment completed.
Evaluate and
Report to local
infections.
treat sexual
health department.
partners.
Pharmacologic Management:
Doxycycline
Azithromycin Levofloxacin (One
Erythromycin if
-Pregnancy:
(BID for 7
(one dose)
daily for 7 days)
allergies
Treat with azithromycin, erythromycin base or amoxicillin.
days)
Gonorrhea - Neisseria gonorrhea
Produces a purulent inflammation of mucous membranes. Transmitted by sexual contact or from infected mother to infant during childbirth.
Risk Factors
New sexual
partners
Mucopurulent cervicitis
Multiple sexual partners or partners of person with multiple
partners
Assessment Findings:
FEMALES
Often asymptomatic
Vaginal discharge
Dysuria
Men having sex with other
men
Abdominal/Pelvic pain
Sexual exposure to an infected individual without barrier
protection
MALES
Dysuria
Testicular
pain
Purulent urethral
discharge
Asymptomatic
Nonpharmacologic Management:
Avoid sexual intercourse
Treatment of
Sexual abuse should be considered for any
Report all cases to local
Screen for other
until treatment completed
sexual contacts
child with confirmed gonorrhea after neonatal
health department
STIs
period
Pharmacologic Management:
ceftriaxone (Rocephin) IM
cefixime (Suprax) doxycycline
Plus--- azithromycin
 Pregnancy:
(Vibramycin)
(Zithromax)
Ceftriaxone is the treatment of choice
Syphilis - Treponema Pallidum
Sexually transmitted disease characterized by sequential stages and involving multiple systems. Syphilis has the following stages:
Primary
Secondary
Latent (infection present at least 12 months) Tertiary
Risk Factors:
Men who have sex with men
Multiple sexual partners
Injecting drug use
HIV infection Presence of another sexually transmitted
disease
Assessment Findings: Primary Syphilis
Chancre at site of inoculation begins as papule then ulcerates with a hard edge and clean, yellow base; indurated and painless; usually located on genitalia.

May be solitary or multiple
Assessment Findings: Secondary Syphilis
Rash that is bilaterally symmetrical, nonpruritic, frequently on soles
and palms, and usually persists for 2-6 weeks then spontaneously
resolves.

Persists for 1-5 weeks and heals spontaneously
Mucous patches in
mouth, throat,
cervix.
Flu-like
symptoms
Mild
hepatosplenomegaly
Generalized
lymphadenopathy
Assessment Findings: Latent Syphilis
Usually, asymptomatic
 Infectious lesions can recur
Assessment Findings: Tertiary Syphilis
Benign lesions (gummas) of the
Cardiovascular syphilis, usually in the form of Neurosyphilis, causing central nervous system problems
skin, mucous membranes, and
aortic valvular disease and aortic aneurysms
(e.g., meningitis, hearing loss, generalized paresis
bones
[weakness])
Diagnostic Studies:
•
Treponemal tests
Darkfield microscopy or direct
•
Nontreponemal tests:
•
Fluorescent treponemal antibody absorbed (FTA-ABS)
fluorescent antibody test of
Rapid plasma regains (RPR)
•
Microhemagglutinatin assay for antibody to T. pallidum (MHA-TP)
exudate or tissue.

Venereal Disease Research Laboratory (VDRL)
Prevention: EDUCATION
Safe sex practices are those that reduce the risk for non-intact skin or mucous membranes coming in contact with infected body fluids
and blood.
Nonpharmacologic Management:
Abstinence, mutual monogamy, and decreasing the number of
sexual partners.
Avoid sexual intercourse until treatment complete
Treatment for all sexual partners
Evaluate for other STIs
Pharmacologic Management:
Benzathine penicillin G (Bicillin) given IM as a
Patients in the late latent stage
single 2.4-million-unit dose is the evidence-based
receive the same dose every
treatment for primary, secondary, and early latent
week for 3 weeks.
syphilis.
Genital Herpes (Viral)
Recurrent, incurable
Transmitted by direct contact
Herpes simplex virus type
cutaneous or mucous
with active lesions or by virus1 or 2 (usually HSV-2)
membrane infection.

After treatment  evaluation
including blood tests at 6, 12,
and 24 months.



Repeat treatment patient
does not respond to the
initial antibiotic.
An asymptomatic patient can be
infectious while shedding virus
containing fluid
Assessment Findings:
 Primary infection:
Painful papules followed by
 Headache
vesicles on an erythematous base  Malaise
that ulcerate, crust, and resolve.
 Hyperesthesia
Report all cases to local health
department
Usual incubation
period is 2-12 days.
 Recurrent infections:
Prodrome of pain, burning, Burning
Lesions as above
and/or paresthesia over
genital pain.
that resolve within
area of eruption.
7-10 days.
Myalgia
Dysuria
Fever
Diagnostic Studies:
Viral Culture or polymerase chain reaction assays of the lesions.
Serologic assays
 PCR is more sensitive
 Usually, positive 4-6 weeks after onset of symptoms
Prevention:
 Use of condoms
 Cesarean section indicated in women with lesions to prevent infection in newborn.
Nonpharmacologic Management:
 Education/Counseling
Cool
Good
Remind patients to
Use of
Avoidance of triggers to
 Natural course of disease
compresses hygiene abstain from sexual
condoms
recurrent infection when
 Asymptomatic viral shedding
activity while GH
during all
possible.
 Potential for recurrent episodes
lesions are present.
sexual
 Genital trauma, emotional
 Sexual transmission
exposures
stress, concurrent infection
 Implications for pregnancy
Pharmacologic Management:
 Anitviral drugs are used to treat GH
 acyclovir (Zovirax, Avirax)
 famciclovir (Famvir)
 valacyclovir (Valtrex)
Human Papilloma Virus (HPV) - Condylomata Acuminata (Genital Warts)
HUMAN
PAPILLOMA VIRUS
(HPV)
No Vaginal Birth
Viral infection transmitted sexually through an epidermal
Generally benign and produce no symptoms
HPV Types 6 & 11 most
defect that produces warts on genital area.
except the cosmetic appearance.
commonly cause genital warts.
Assessment Findings:
Soft, flesh-colored warts
Warts are usually painless Surface smooth to very rough
Perianal warts usually rough and cauliflower-like

Nonpharmacologic Management:
Use of Condoms



Abstinence until therapy completed
Pharmacologic Management:
Podophyllin resin
 Trichloroacetic acid (TCA)
TRICHOMONAS
Trichomonas.
- Trichomonas vaginalis

Foul
odor
Cervical petechiae
(“strawberry
cervix”)
Wet prep: Visualization of trichomonads as flagellated, motile cells slightly larger than
WBCs

podofilox (Condylox)
STD which can infect vagina, skene’s ducts, and lower genitourinary tract in women and lower genitourinary tract in
men.
Assessment Findings:
FEMALES
Asymptomatic Vaginal discharge
-Frothy, copious
-Pale yellow to gray-green in color
Diagnostic Studies:
CO2 laser
Asymptomatic
Pap
smear
Single-celled, flagellated protozoan parasite
Urethral
discharge
Culture
imiquimod (Aldara)
MALES
Dysuria
Epididymitis
Prostatitis
Vaginal secretion pH: >4.5 (usually 5.56.0)
Nonpharmacologic Management
Abstinence until treatment is completed
Pharmacologic Management:
metronidazole (Flagyl)
 Review safety and drug interactions




Abstain from alcohol if taking metronidazole
tinidazole (Tindamax)
**Treat Sexual partners
Bacterial Vaginosis (BV)
Clinical syndrome resulting from replacement of the normal vaginal flora, Lactobacillus sp., with high concentrations of anaerobic bacteria.
•
Prevotella sp.
•
Mobiluncus sp.
•
Gardnerella. Vaginalis
•
Mycoplasma hominis
Etiology/Incidence:
Cause of the microbacterial overgrowth not completely understood.
Assessment Findings:
Asymptomatic
(sometimes)
Grayish-white malodorous vaginal discharge
Prevention:
Avoid use of feminine pads,
liners
Good hygiene
Most prevalent vaginal infection in women of reproductive age in the U.S.
Unpleasant, fishy, or musty
vaginal odor
Use of condoms
Profuse discharge
Pruritus and burning of vulvovaginal
area (sometimes)
Avoid douching as this may reduce
recurrences
Screen for STIs
Nonpharmacologic Management:
Avoid sexual intercourse until treatment completed
No alcohol if on metronidazole due to a disulfiram-type
reaction
Stress good personal
hygiene
Avoid douching to prevent
recurrences
Pharmacologic Management:

metronidazole (Flagyl)
Vaginal gel

PO

Complications/Pregnancy:
 BV during pregnancy is associated with adverse pregnancy outcomes
Preterm labor
 Premature rupture of membranes
Review safety and drug interactions

tinidazole
(Tindamax)
Clindamycin
Vaginal Cream
Premature birth
Candida Vaginitis (Yeast) - Vulvovaginal Candidiasis
“Yeast
infection.”
Candida albicans
(gram+)
oral contraceptives
antibiotics
Vulvovaginal Candidiasis
Diagnosis
potassium hydroxide (KOH) wet mount will show hyphae and
spores
miconazole
•
Contributory Factors
pregnancy
immunosuppression & HIV
thick, white, cheese-like
discharge.
DM
Symptoms
Severe itching, dysuria,
dyspareunia.
Abdominal soreness on
palpation
Vulvovaginal Candidiasis – Treatment (Can still do vaginal birth)
tioconazole butaconazole teraconazole clotrimazole fluconazole (one tablet only) orally (prescribed medication)
Pelvic Inflammatory Disease (PID)
STI caused by ascent of microorganisms from vagina and endocervix to uterus, fallopian tubes, ovaries, and contiguous
structures.
Age younger than 26
years
Risk Factors:
Multiple sexual
partners
Intrauterine device (IUD) placed within the
previous 3 weeks
Smoking
Hx of
PID
Ph problems
OTC treatment options
Chlamydia and/or gonorrhea are common
causes
Chlamydial or gonococcal infection; bacterial
vaginosis
A hx of
(STDs)
Assessment Findings:
Symptoms begin during or
within one week of menses.
Diagnostic Criteria:
Unusual or new onset
of dysmenorrhea
Lower
abdominal pain
Fever,
malaise
Vaginal
discharge
Urinary
discomfort
Nausea and
vomiting
Abdominal
tenderness
Diagnostic Studies:
Specimens from the cervix, urethra, and rectum to determine the
presence of N. gonorrhoeae or C. trachomatis.
Nonpharmacologic Management:
(WBC) count
Erythrocyte sedimentation
rate (ESR)
Abstinence until treatment is completed
Evaluation and treatment of sexual partners
Pharmacologic Management:
CDC recommends any of several different regimens
Antibiotic therapy -IV
C-reactive
protein
Pregnancy
test
Microscopic examination of
vaginal discharge
Screen regularly for STDs in at risk patients
Abdominal
ultrasonography
Semi-Fowler’s position
Drug therapy is required for 14 days.
HIV Human immunodeficiency Virus
T-cell affected causing decrease
HIV virus can be found in blood,
body immune response, making
vaginal fluid, and breast milk
affected person more susceptible
implicated in disease
to opportunistic infections.
transmission
Pregnancy with HIV
HIV positive mother should be counsel about the implications of diagnoses
HIV screening
should be a
routine part of
all prenatal
care.
Prevent
mother-to child
transmission
Prenatal Detected
screening - EIA
(Reactive enzyme
immunoassay)
Confirmation test-Western blot
test or immunofluorescence
assay (IFA)
Priority focused on maintaining the health of the mother before, during and after the
pregnancy.
Risk Factors for HIV Perinatal Transmission.
Prolonged
Breastfeeding Smoking
High maternal Vaginal
Mother
Chorioamnionitis Preterm Chronic
diagnosed with
CD-4 count viral load
rupture of
delivery
Delivery conditions
AIDS
membranes
Treatment during pregnancy
•
Antiretroviral therapy
Start during the first trimester or delayed until 12 weeks’ gestation
Recommended
Regardless of
Reduce the
Zidovudine
Suppress viral replication
Some ARV medications are
Benefit vs.
to all infected
symptomatic or
rate of prenatal to keep viral load
(AZT)
contraindicated during pregnancy Risk
pregnant women asymptomatic
transmission
undetectable by diagnostic
test
Treatment during Pregnancy
•
Under the care of Perinatologist
Weekly NST starting at 32
Monitor for early
Invasive procedures such as
Educating mother about postpartum care
weeks and serial ultrasoundssigns of complication amniocentesis are avoided when
and promoting adherence to medication
IUGR
possible
therapy
HIV labor & delivery
Scheduled cesarean birth indicated for mother
External electronic Delivery within four hours
Primary focus- prevention
AZT
with HIV a high level of viral RNA or unknown HIV
of vertical transmission of
administered
fetal monitor
of Rupture of membrane
RNA levels near time of birth.
IVBP during
HIV
labor
Postpartum Care
HIPAA and confidentiality
Community based services with
Hospital/Case manager and social worker
Postpartum education
Counseling
Postpartum care
Avoid
Umbilical cord cleaning
Breastfeeding is
Initial oral AZT to the newborn: -2mg/kg every 6 hours for 6
circumcision
contraindicated
weeks
Newborn of HIV positive mother
•
Watch for symptoms of opportunistic infection
Low maternal
Possible HIV infection
Lymphoid interstitial pneumonitis
Thrush (candidiasis)
Infected newborns likely to be premature, SGA, and show failure to thrive in the newborn/ infant periods.
Newborn care
Provide
Facilitate growth,
Protect from
Children with symptomatic or
Teach the
Regular clinical,
comfort
development, and
opportunistic
asymptomatic HIV infection should
caregiver
immunologic and
and
attachment
infections
receive all routine vaccines except for live postnatal care
virologic monitoring
nutrition
virus vaccines.
Erectile Dysfunction
Inability to achieve or maintain an erection for sexual
Organic- gradual deterioration of function
Functional– psychological
intercourse.
or
cause.
Causes of Organic
Inflammation Surgical
Pelvic
Vascular
Neurologic
Endocrine
Smoking
Medications Diet AgeProcedures
Fractures
diseases- HTN
conditions
disorders- DM and alcohol
related
Pharmacologic Treatment
Phosphodiesterase-5 inhibitors (PDE-5)
Use caution
•
No erection lasting over 4 hours
Testosterone and PDE5 drug therapy
•
Sildenafil (Viagra)
(Viagra)
(for men with hypogonadism)
•
Tadalafil (Cialis)
•
Cardiac symptoms
•
Side effects
Pharmacologic Treatment CONT.
Men who take nitrates should
PDE-5 Inhibitors
Abstain from alcohol
Common side effects of these drugs
avoid PDE-5 inhibitors because
before sexual
include dyspepsia (heartburn),
sildenafil (Viagra) take 1-1 ½ hours before
the vasodilation effects can
intercourse because it headaches, facial flushing, and stuffy
could impair the
nose. If more than one pill a day is being cause a profound hypotension
tadalafil (Cialis) take 2 hours before, lasts
and reduce blood flow to vital
ability to have an
taken, leg and back cramps, nausea,
organs, can be fatal!
36 hours
erection.
and vomiting also may occur.
Nonpharmacologic Treatment
Lifestyle modifications
Penile self-injection with
Surgery (prosthesis)
Vacuum-assisted
Providing psychological
(e.g., smoking cessation,
prostaglandin E1
erection devices
support/ therapy
weight loss, management
•
Include Partner
of hypertension)
•
Provide education is important!!!
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