Revision Flashcards
(194 cards)
at what point do the ovaries contain the greatest number of germ cells
7 months gestation
A 30-year-old pregnant woman undergoes a routine ultrasound scan. The scan reveals a normal pregnancy, however she has two uteri.
What is the most likely embryonic explanation?
incomplete fusion of the paramesonephric duct
In males, which structure develops to form the vas deferens (ductus deferens)
mesonephric duct
In females, which structure develops to form the superior portion of the vagina?
paramesonephric duct
The provision of any assisted conception treatment and research using human embryos in the UK requires regulation.
What is the name of the regulatory body that provides this?
the human fertilisation and embryology authority
Research on Human Embryos is legal in the UK.
Up to what stage can this research be performed?
day 14
A couple attend an infertility clinic. The man had a vasectomy 5 years ago and was shown to be azoospermic following this.
What treatment option should be offered initially?
ICSI with sperm obtained from surgical sperm aspiration
At which stage in embryo development is embryo transfer most successful?
blastocyst
A couple present with a 5 year history of unexplained infertility. What is the best course of treatment?
IVF
How long do male lice live, on average?
22 days
A woman presents in her 3rd trimester with pelvic pain. What structures relax in pregnancy, which could be contributing to her pelvic pain?
pelvic inlet
Which structures on the fetal skull outline the vertex?
Anterior and posterior fontanelles and the parietal eminences
A non-sexually active woman presents with a vaginal discharge which contains bubbles and has an offensive smell.
What is the most likely infection?
bacterial vaginosis
what cells on high vaginal swab can diagnose bacterial vaginosis
clue cells (epithelial cells of vagina covered in bacteria creating a stippled appearance)
Changes in the Endometrium in the luteal phase are direct effect of which hormone?
progesterone
how long is the luteal phase
14 days
what info is need on endometrial biopsy
age LMP date pattern of bleeding length of cycle hormonal therapy recent pregnancy
what type of cancer can molar pregnancies transform into
choriocarcinoma
what is a missed miscarriage
<12 weeks gestation in which the dead embryo/ foetus is retained in the womb for a period of time without symptoms
what is the difference between partial and complete moles
Partial mole: tissue is triploid from a dispermic fertilisation of a
normal ovum. Fetus can be present. Can result in a live birth.
Complete mole: diploid , genetic maternal paternal, it has
duplicated from haploid sperm in an empty ovum or rarely from
dispermic fertilisation of an empty ovum. No fetus present.
is anti D ever given to Rhesus +ve women
no, will do nothing, too late to
use Anti D to ‘mop up’ fetal antibodies and
prevent an maternal immune reaction
a miscarriage is only up to 24 weeks, what is it called after this
pre term labour
when is anti D given
routinely at 28 weeks and then additional doses for
any sensitising event.
what causes haemolytic disease of the fetus and newborn
when the mother has IgG red cell alloantibodies in her plasma that cross the placenta and bind to fetal red cells possessing the corresponding antigen. Immune haemolysis may then cause variable degrees of fetal anaemia
Red cell alloantibodies in the mother occur as a result of previous pregnancies (where fetal red cells containing paternal blood group antigens cross the placenta) or blood transfusion