Reproductive Flashcards
What happens to the following parameters with normal pregnancy:
Haemoglobin
Platelets
White cell count
Hb - decreases
Platelets - decreases
WCC - increases
What happens to the following parameters with normal pregnancy:
Creatinine
Urea
Total protein
Creatinine - lower
Urea - lower
Total protein - higher (due to high estrogen stimulating protein synthesis)
What happens to the following parameters during normal pregnancy:
D dimer
GFR
Haematocrit
D dimer - higher
GFR - higher
Haematocrit - lower
Which test for diabetic control can be unreliable in pregnancy and why?
HbA1c - decreased erythrocyte lifespan
What happens to albumin levels in normal pregnancy? What physiological sign may this lead to?
Lower; may lead to oedema
Which antibiotic should we use for a pregnant women with a UTI?
Nitrofurantoin
Increase in minute ventilation in normal pregnancy is driven by which hormone?
Progesterone
By what percentage does circulating blood volume increase in normal pregnancy?
50-70%
High hCG can cause which transient metabolic disturbance in pregnancy?
Hyperemesis gravidarum + hyperthyroidism
Trophoblast cells produce which hormone?
Beta hCG
Which hormone thickens the endometrial lining?
Progesterone
Beta hCG stimulates which group of cells?
Corpus luteum
Which hormone prevents the decidua from shedding?
Progesterone
Miscarriage is defined as spontaneous loss of intrauterine pregnancy before how many weeks of gestation?
24 weeks
Are decidual cells procoagualant or anticoagulant?
Procoagulant
Name the miscarriage type:
Closed cervical os + vaginal bleeding + viable pregnancy on USS
Threatened
Name the miscarriage type:
Vaginal bleeding + open cervical os +/- abdominal pain
Inevitable
Name the miscarriage type:
Vaginal bleeding + open cervical os + products of conception seen on examination
Incomplete
What complication are patients experiencing incomplete miscarriage at risk of?
Sepsis - due to presence of products of conception
Name the miscarriage type:
Closed cervical os + no products of conception + vaginal or abdominal pain have passed
Complete
Name the miscarriage type:
Non-viable intrauterine pregnancy + closed cervical os
Missed
Rebound tenderness and guarding are suggestive of what obstetric complaint?
Ectopic pregnancy
Which mode of investigation may be used to determine whether a pregnancy is intrauterine or ectopic?
Transvaginal USS
Which medical agent can be given in miscarriage?
Misoprostol
How does misoprostol work?
Prostaglandin analogue which induces uterine contractions and effacement of cervix
Under which circumstance is misoprostol indicated?
Miscarriage
Where is an ectopic pregnancy most commonly found?
Ampulla of fallopian tube
Name the obstetric complaint:
PMH pelvic inflammatory disease + shoulder tip pain + vaginal bleeding
Ectopic pregnancy
Fluid in the pouch of Douglas seen on USS suggests what?
Ectopic pregnancy
What medication may be administered in ectopic pregnancy?
Methotrexate injection
What management should be picked in a patient with ectopic pregnancy with a serum hCG of 800iu/l?
Conservative management
What size of mass in ectopic pregnancy would warrant surgical management?
Equal to or over 35mm
What management should be picked in ectopic pregnancy with a serum beta hCG of 1800iu/l?
Methotrexate injection
Name the obstetric complaint:
Large for gestational age + hyperemesis
Molar pregnancy
Which complication may occur in patients with a very high serum beta hCG?
Thyrotoxicosis - hCG has a very similar structure to TSH and hence can activate TSH receptors
Antepartum haemorrhage is described as occurring after how many weeks of pregnancy?
24 weeks
Name the obstetric complaint:
Painless bright red PV bleed
Placenta praevia
Which examination should not be carried out in placenta praevia?
Vaginal examination - may provoke major bleed
What grade of placenta praevia is described here:
Placenta partially covering internal os
Grade 3
Which grade of placenta praevia is described here:
Placental edge reaches the internal os but does not cover it
Grade 2
Name the obstetric complaint:
Vaginal bleeding + rupture of foetal membranes + foetal disorientation
Vasa praevia
Which medications can be given in placenta praevia to control bleeding?
Oxytocin, ergometrine, carboprost, tranexamic acid
How does oxytocin exert its anti-bleeding effect?
Increases intensity and frequency or uterine contractions
Name the obstetric complaint:
Painful PV bleed at 31 weeks
Placental abruption
Hypertension is only classed as gestational when it appears after how many weeks of pregnancy?
20 weeks
What is the BP aim for women with gestational hypertension?
150/100
Which BP medications are safe in pregnancy?
Labetolol, nifedipine, methyldopa
Which BP medications are not safe for use in pregnancy?
ACE inhibitors and ARBs
Name the obstetric complaint:
Gestational hypertension + proteinuria
Pre-eclampsia
The following signs are a warning for which obstetric complaint:
Headache + blurred vision + systolic BP over 160mmHg
Eclamptic seizure
Pre-eclampsia can lead to restriction of what in the foetus?
IUGR - intra-uterine growth restriction
Brisk reflexes and blurred vision are associated with what complication of pre-eclampsia?
Eclamptic seizure
Which medication and at what dose can be given in pre-eclampsia to improve placental flow?
Low dose aspirin - 150mg/day
Which obstetric complaint is a patient on these medications likely to have:
Low dose aspirin 150mg/day + labetolol
Pre-eclampsia
Which test for thrombosis is not reliable in pregnancy?
D-dimer - increases in pregnancy due to hypercoaguable state
Thrombosis in pregnancy should be treated with what?
Low molecular weight heparin - enoxaparin, dalteparin
Which treatment should be given in the event of an eclamptic seizure?
IV magnesium sulfate
Which foetal growth complication can occur in gestational diabetes?
Macrosomia
Which diabetic medications are safe in pregnancy?
Metformin and insulin
Menopause is associated with a drop in which hormone?
Oestrogen/oestradiol
Reduced oestrogen in menopause can lead to what skeletal disease?
Osteoporosis
The following patient is at risk of developing what:
Menopausal + long term steroid use + hyperthyroidism
Osteoporosis
Which monoclonal antibody can be given in menopause associated osteoporosis?
Denosumab
Under what circumstances can progesterone be omitted from HRT for menopause?
In those who have had a hysterectomy
Troublesome menopausal hot flushes can be medically managed by what?
Tibolone
Secondary amenorrhoea is described as a lack of periods for how many months?
6
Hyperprolactinaemia can lead to what gynaecological complaint?
Amenorrhoea
Which underlying hormone is responsible for this patients amenorrhoea:
Visual changes
Prolactin
Which underlying hormone is responsible for this patients amenorrhoea:
Ancne + voice change
Androgens - testosterone
Raised FSH and low oestradiol indicate which stage of menopause?
Early
A patient presents with amenorrhoea - their blood test shoes increased 17-hydroxy-progesterone. What is the likely underlying diagnosis?
Congenital adrenal hyperplasia
A patient presents with amenorrhoea - a blood test shows low SHBG. What is the likely underlying diagnosis?
PCOS
Low SHBG on blood test indicates what levels of free androgen?
Elevated
Exercise has what effect on SHBG levels?
Increases SHBG - and so can lower free androgen
What androgen receptor antagonist can be used in PCOS?
Spironolactone
What is the mode of action of clomiphene? When is this medication indicated?
Induces ovulation - indicated in infertility and PCOS
Name the gynaecological complaint:
Hirsutism + amenorrhoea + insulin resistance
PCOS
Heavy menstrual bleeding is defined by how many millilitres of blood loss over 7 days?
80ml or more
What is a leiomyoma?
Uterine fibroid made up of fibrous tissue
Gold standard diagnosis of endometriosis is via what?
Laparoscopy
Name the gynaecological complaint:
Endometrium has become embedded in myometrium.
What is the definitive treatment?
Adenomyosis - definitive treatment by hysterectomy
Sheehan’s syndrome is associated with which obstetric emergency?
Significant post partum haemorrhage
Pituitary gland infarction following major post partum haemorrhage is described as what?
Sheehan’s syndrome
Sheehan’s syndrome can lead to what dysfunction of menstruation?
Secondary amenorrhoea
What level of fasting plasma glucose is required for diagnosis of gestational diabetes?
5.6mmol/l +
What level of 2 hour plasma glucose is required to make a diagnosis of gestational diabetes?
7.8mmol/l +
Name the most probable type of gynae cancer:
Abdominal discomfort + bloating + polyuria
Ovarian cancer
Which blood marker is used for ovarian cancer?
CA-125