Sexual Health Flashcards
What is the causative organism in gonorrhoea?
- Neisseria gonorrhoea
(Gram -ve intracellular diplococcus)
What is the incubation period for gonorrhoea?
- 2-7 days
Give 8 symptoms of gonorrhoea
- Penile/vaginal discharge
- Dysuria
- Pelvic pain
- IM bleeding
- Conjunctivitis
- Deep dysparaeunia
- Proctitis
- Bartholin’s cyst (tender mass in labial fold)
Give 7 complications of gonorrhoea
- PID
- Epididymo-orchitis
- Tubo-ovarian cyst
- Ectopic pregnancy
- Infertility
- Disseminated gonococcal infection (presenting as rash)
- Septic arthritis
Give 1 diagnostic test for gonorrhoea
- NAAT - first catch urine sample in men, vaginal swab in women
Give the management of gonorrhoea
- Ceftriaxone (IM stat)
- Azithromycin (PO stat) - accounts for increasing resistance
What impact does gonorrhoea have on pregnancy?
- Causes opthalmia neonatorum (occurring earlier than chlamydial conjunctivitis) and so requires management in the pregnant mother
Is partner notification required for gonorrhoea?
- Yes
Give the causative organism for chlamydia
- Chlamydia trachomatis (Gram -ve bacterium)
Give 8 symptoms of chlamydia
- Penile/vaginal discharge
- Dysuria
- Conjunctivitis
- Pelvic pain
- Dysparaeunia
- IM bleeding
- Proctitis
- Post-coital bleeding
Give 7 complications of chlamydia
- PID
- Epididymo-orchitis
- Tubo-ovarian cyst
- Infertility
5.Ectopic pregnancy - Sexually-acquired reactive arthritis (arthritis, rash, urethritis, uveitis)
- Peri-hepatitis
Give 1 investigation for chlamydia
- NAAT - first pass urine sample in men, vaginal swab in women
Give the management of chlamydia
- Doxycycline PO
Give the impact of chlamydia infection in pregnancy
- Causes neonatal conjunctivits (2-4 weeks after birth - presents later than opthalmia neonatorum)
- Causes neonatal pneumonitis (managed with erythromycin PO)
- Treat the mother with azithromycin (doxycycline is contra-indicated in pregnancy)
Is partner notification required for chlamydia?
- Yes
Give the causative organism for lymphogranuloma venereum
- Chlamydia trachomatis serovar L1-3 (more infective subtype)
Give the presentation of lymphogranuloma venereum
- Proctitis
- Tenesmus
- Fever
- Inguinal lymphadenopathy
Give 1 complication of lymphogranuloma venereum
- Fistulae formation
Give the management for lymphogranuloma venereum
- Doxycycline PO (prolonged course)
Give the causative organism of syphilis
- Treponema pallidum (spirochete bacterium)
Give the 5 stages of syphilis
- Primary syphilis
- Secondary syphilis
- Early-latent syphilis
- Late-latent syphilis
- Tertiary syphilis
Give the presentation of primary syphilis
- Chancre formation (single painless ulcer on genitals)
Give the presentation of secondary syphilis
- Widespread non-pruritic maculopapular rash involving the palms of the hands and the soles of the feet
- Alopecia
- Oral snail-track lesions
- Pyrexia, fatigue, malaise
Give the presentation of early-latent syphilis
- Asymptomatic infection with positive serology within 2 years of diagnosis
Give the presentation of late-latent syphilis
- Asymptomatic infection with positive serology greater than 2 years after diagnosis
Give the presentation of tertiary syphilis
- Untreated syphilis may develop to: neurosyphilis (paresis, strokes) or cardiovascular syphilis (aortitis, aneurysm)
Give 3 investigations for syphilis
- Dark ground microscopy of chancre fluid
- PCR from chancre
- Serology (including VDRL - becomes raised in secondary syphilis)
Give the management of syphilis
- IM pencillin STAT (benzathene penicillin) - azithromycin as 2nd line
Give 1 side effect of syphilis management
- Jarisch-Herxheimer Reaction - acute inflammatory response to toxins released during spirochete cell lysis causing fever, myalgia and headache. Presents with sepsis-like picture
Give the impact of syphilis in pregnancy
- May cause stillbirth and miscarriage
- May cause congenital syphilis - presenting with deformed bone, rash, meningitis and anaemia
Give 1 complication of syphilis management
- Jarisch-Herxheimer reaction - antibiotic management of syphilis causes endotoxin release, presenting with a sepsis-like picture. Can be prevented with steroids
Give the causative organism of trichomoniasis
Trichomonas vaginalis (flagellated protozoan)
Give the presentation of trichomoniasis
- Vaginal discharge
- Vulval itch
- Dysparaeunia
- Dysuria
- Balanitis and urethral discharge (men)
Give the management of trichomoniasis
- Metronidazole (PO single dose)
Give the diagnostic investigation of choice for trichomoniasis
- NAAT of urine sample of swab of vaginal discharge
Is partner notification required for trichomoniasis?
Yes
Give 3 complications of trichomoniasis
- PID (increases risk of infertility)
- Prostatitis
- Increased risk of premature rupture of membranes and premature birth
Give the causative organism of genital herpes
- Herpes zoster virus 1 and 2 (DS DNA virus)
Give the presentation of genital herpes
- Either primary infection or recurrence
- Blisters which progress to painful ulcers
- Dysuria
- Pyrexia
Give the investigations for genital herpes
- HSV PCR - swab from lesions (burst an ulcer nd swab the base)
Give 1 complication of genital herpes
- Encephalitis
Give the management of genital herpes
- Aciclovir (for primary, recurrence and as prophylaxis)
- Pain relief, topical vaseline, salt water baths
Give the presentation of neonatal herpes
- Vesicular rash
- Encephalitis (seizures, bulging fontanelle, irritability)
- Respiratory failure
- Hepatic failure
- Disseminated intravascular coagulation
- Death
Give the management of neonatal herpes
- Aciclovir
Give the causative organism of genital warts
Human papillomavirus 6 and 11 (DS DNA virus)
Give the symptoms of genital warts
- Vulval, vaginal, anal or penile warts
Give the management of genital warts
- May resolve spontaneously
- Topical podophyllin paint (avoid in pregnancy)
- Cryotherapy
- Surgical removal (likely to scar)
Give 2 preventative measures for genital warts
- Behavioural
- Quadrivelant HPV vaccine
Give the pathophysiology of HIV
- SS RNA virus
- Incorporates into host cell DNA using reverse transcriptase and integrase enzymes
- Viral proteins are assembled by proteases, which are released from the cell via budding - killing the cell
- New virions affect further cells - any with a CD4 receptor (incl. CD4+ T-cells, macrophages, monocytes)
- CD4+ T-cells are gradually destroyed, resulting in reduced immunity
Give the presentation of HIV seroconversion illness
- 2-6 weeks following exposure
- Fever, malaise, myalgia
- Maculopapular rash
- Widespread lymphadenopathy
Give the presentation of AIDS
- Marked immunodeficiency with reduced CD4+ T-cell count
- Clinical syndrome of disease in the presence of HIV:
a) Respiratory/oesophageal candida
b) Chronic HSV
c) Disseminated TB
d) Toxoplasmosis of the brain
e) Recurrent salmonella
f) Lymphoma of the brain
Give the investigations for HIV
- Antigen-antibody test - positive 2-6 weeks following exposure
- Western blot test
- CD4+ T-cell count - measures immune function
- HIV RNA - ‘viral load’ to monitor treatment progress
Give the management of HIV
- Anti-retroviral therapy - aims to reduce virl load to below detectable levels
- 2x nucleotide analogue reverse transcriptase inhibitors (NRTIs), PLUS 1x protease inhibitor OR 1x non-NRTI
Give 2 examples of NRTIs
- Tenefovir
- Zidovudine
Give 3 side effects of NRTIs
- GI distrubance
- Anaemia
- Neuropathy
Give 1 example of a protease inhibitor
- Indinavir
Give 1 example of a non-NRTI
- Nevirapine
Describe post-exposure prophylaxis
- Effective if taken within 72 hours of exposure
- Truvada (tenefovir plus emtracitabine) PLUS raltegravir
Describe pre-exposure prophylaxis
- Truvada (tenefovir plus emtracitabine)
- Can be taken daily or event-driven (2 tablets 2-24 hours prior to sex PLUS 1 tablet every 24 hours for at least 2 doses after sex)
Give the management of HIV in pregnancy
- Mother should take nevirapine (non-NRTI)
- Elective caesarean at 38 weeks
- Abstain from breast feeding
- May vertically transmit HIV to foetus
Give the transmission route for Hepatitis A
- Faeco-oral
- Rarely transmitted via sex
Give the presentation of Hepatitis A
- Often asymptomatic
- Jaundice, malaise, abdominal pain, fever
Give the investigations for Hepatitis A
- Abnormal LFTs
- Anti-HAV antibodies