GU Test 2 Flashcards
RTI vs STI are they assymtomatic?
Many RTIs are asymptomatic
STI’s: types
Trichomoniasis, Chlamydia, Gonorrhea, Syphillis, Pediculosis pubis, HIV, HPV, HSV 1 &2, HBV
Vaginitis:
o Normal Vaginal pH
3.8-4.5
pH of Sperm
7.5
lactobacilli in vagina
Inhibits growth of anaerobes & other organisms
Controls the environment: Low
If low → other bacteria (garnerella, Group B strep) overgrow → amino acids production →
increased vaginal pH →squamous cell desquamation → classic discharge
Controls the environment: High
Elevated pH kills normal flora (lactobilli) while anaerobes and other bacteria flourish
Most common isVaginitis: (Bacterial Vaginitis)
Gardnerella: (Bacterial Vaginitis)
2nd most common vaginalis
Candidiasis is 2nd most common: (Yeast Infection)
Are Gardnerella and Candidiasis STI’s
Gardnerella and Candidiasis are not STI’s
Trichomonas STI does what?
Facilitates transmission of HIV & other STIs
Herpes: Biggest Shedding
Asymptomatic viral shedding spreads most HSV (>70%)
Herpes does evveyone require acyclovir
NO
Herpes Onset
Virus replicates in ganglia→migrates to mucosa→replicates in epithelium→lesions
▪ Onset typically 4 days after sexual contact
Syphillis:
▪Infects
Capable of infecting almost any organ and system
Syphilis If not treated
If not treated, progresses through 4 stages, over many years (affects behavior)
▪ Primary Syphillis: is called
Chancre
Primary Syphillis:
● Chancre is painful or painless?
Painless
Secondary Syphillis: Onset
2-8 weeks after chancre pts often develop a RASH
Secondary syphilis Where does it go?
Rash: Diffuse, macular, popular, combinations
● Diffuse: Palms, soles
● Patterned Hair Loss
● Latent Period:
Syphilis Tertiary (late) stage:
Complications: Gummata (sores inside body or skin), CV affects heart & BV’s, Neurosyphilis
Syphilis Diagnosis:
Screening antibody testing/VDRL/RPR (for non-specific ‘reagin’ antibody)
o More specific/ confirmation test: FTA-ABS; MHA-TP)
Syphilis Diagnosis: More specific confirmation test
FTA-ABS; MHA-TP)
o Pubic Lice: Who is it transmitted?
Only STI that can be transmitted
via bedding, clothing
Reiter’s: Associated
Chlamydia
Gonorrhoea: associated with
ARTHRITIS (can manifest as jt. Pain)
PID: Symtoms
May be asymptomatic, not only caused by STI’s, may cause long-term complications, if diagnosed partner must
be screened/treated (if caused by STI)
Reportable Disease in Oregon… Women:
Asymptomatic, vaginal discharge, dysuria, dyspareunia, low abdominal pain, CPP, unusual bleeding
(metrorrhagia, menorrhagia)
Reportable Disease in Oregon… Men
Asymptomatic, penile discharge, dysuria, burning/pruritis around urethral meatus, pain with
ejaculation, pain and swelling in testicles
HIV: is the MC?
Sexually Transmitted (most common)
HIV Life Cycle:
o Entry:
HIV binds to CD4rc’s onTcells→ allows virus to enter
HIV Life Cycle:
Enzyme 1—
reverse transcriptase (RT):
Once HIV is in host cell, the protective covering degrades and releases RNA
which is converted to dsDNA by enzymatic action of RT
HIV Life Cycle:
Enzyme 2—
2—Integrase (IN): HIV DNA inserts into hosts genome by integrase.
Once inserted, HIV is called a provirus.
HIV genome translated by host cell into polypeptides which are inactive until cleaved
HIV Life Cycle:
Enzyme 3—
3—Protease (PR): cleaves polypeptides into mature, fully functional HIV proteins
HIV Life Cycle:
Exit:
Once HIV proteins are synthesized by host cell, the HIV virion is assembled with necessary components & bud
out of host cell to produce new virus particles
HIV Infection: Sexual Transmission what cells?
Langerhan’s cells
in mucosa are susceptible to infection
5 Bodily Fluids of Transmission: Of HIV
Blood, Semen & pre-seminal fluid, vaginal fluid, breast milk
5 Routes of HIV Transmission:
Vagina,Rectum, Mouth, Urethra, Inside of Eyelids
Testing: HIV
ELISA if positive→
Western Blot (confirmatory) allows visualization of antibodies
Understand the 6 month window: Of HIV
Window” is time it takes to produce antibodies after transmission
**** During this period before antibodies are produced, one can be infected w/ HIV & can infect others, but still test
negative
PCR: HIV
Direct measurement of amount of viral particles present in the blood (95% confidence level for detecting
Clinical Symptoms of AIDS:
CD4
As Helper T cells deplete decreases in other cell types are seen: AIDS
Macrophages, CD8 cells, NK cells
Compliance with drugs is very important (prevents mutation of the virus and more stable for patient’s body)
Reverse Transcriptase
Reverse Transcriptase Inhibitors: AZT
Know the common long-term side effects of HIV medications, like Diabetes, Osteoporosis, Cardiovascualr
Disease. Know
that cancer is not a long-term effect.
Condoms prevent transmission of HIV more effectively than transmission of HPV and HSV
Covers the skin
Cervical Dysplasia & cancer
Screening Guidelines
Reg paps for all women who are sexual active and have a cervix at age 21 or 30 years after first boning which ever comes first.
65 against routine screening if 10 yr history is clean and not high risk
HPV
Tests; thin prep . sure path transmission sexually, high risk hpv cancer, low risk warts,
Detection
Pap smear
Atypia;
variation of normal
Ascus
abnormal squamous cells of undetermined significance watch it.
CIN I;
cervical intraepthalial neoplasia mild aka LGSIL low grade intraepithelial lesion
CIN II;
moderate aka HGSIL high grade
CIN III;
severe AKA hgsil
CIS;
carcinoma in situ pre-cancerous
Management of abnormal paps
Atypia, ASCUS, CIN I:
most go away without treatment paps every 4 months 1 yr every 6 moths 2 yr
Management of abnormal paps
CIN II;
treatment recommended, cryo, LEEP, pap test every 4 months 1 yr 6mths 2 yr
Management of abnormal paps
CIN III, CIS, Cancer
treatment by gyn oncologist, surgery, LEEP, Conization or laser beam treatment, Hysterectomy in late stages, same pap testing as above
Breast Health
– most common site for fibrous cystic changes (benign) and/or malignancies.
Upper Outer Quadrant (UOQ)