Infection Flashcards
What is the function of lactobacilli in the vagina?
Produce lactic acid, keeping pH of the vagina low and preventing the overgrowth of other bacteria
What causes bacterial vaginosis? What is a commonly
Imbalance of normal bacteria found in the vagina - reduction in lactobacilli and overgrowth of other bacteria
What bacteria are usually seen in increased quantities in bacterial vaginosis?
Anaerobes - e.g. Gardnerella vaginalis
State two complications of bacterial vaginosis infection
Early delivery in pregnant women
Increased risk of transmitting other STIs
What type of discharge is seen in bacterial vaginosis?
Fishy smelling, watery and grey discharge
Apart from fishy, watery and grey discharge what other symptom can be seen in bacterial vaginosis?
Dysuria
What vaginal pH will be seen in bacterial vaginosis?
What cells on microscopy suggest bacterial vaginosis?
High pH
Clue cells
What is the management of bacterial vaginosis? (3)
Vaginal swabs to exclude other STIs
Avoid vaginal irritation/soaps that could disrupt normal flora
METRONIDAZOLE
What is the first line antibiotic for bacterial vaginosis?
Metronidazole
What type of infection is candidiasis? What is another name for candidiasis?
Fungal infection
Thrush
Name two groups of patients in which candidiasis (thrush) is more common
Immunocompromised patients
Diabetics
What type of discharge is seen in candidiasis (thrush)?
Thick, white, cottage cheese discharge
As well as a thick, white, ‘cottage cheese’ like discharge what other symptoms can be seen in candidiasis (thrush)? (2)
Itch
Vulval/vaginal irritation or pain
What are the management options for candidiasis? (3)
Clotrimazole cream Clotrimazole pessary (one-off) Oral fluconazole (150mg, one-off)
What type of bacteria is Neisseria gonorrhoeae?
Gram negative diplococcus
HPV is the most common causes of ________ cancer
Cervical cancer
What other cancers is HPV linked to?
Anal Vulval Vaginal Penis Mouth Throat
How does HPV cause disease and cancer?
Invades cells and interrupts normal replication process by inhibiting tumour suppressor genes p53 and pRb
How is HPV transmitted?
Sexually tansmitted
What strains of HPV cause genital warts?
6, 11
What strains of HPV cause cervical cancer?
16, 18
What strains of HPV does the Gardasil vaccine work against?
6, 11, 16 and 18