Obstetrics Flashcards
What should you do if a baby loses >10% of its birthweight in the first week of life
Refer to midwife-led breastfeeding clinic
What are the two phases in the 1st stage of labour
Latent phase: 0-3cm
Active phase: 3-10cm
Would you experience pain with a threatened miscarriage
No
How would you immediately manage an umbilical cord prolapse
Retrofill the bladder with 500-700ml of saline and push the presenting part back into the uterus
When should insulin be commenced in gestational diabetes
If fasting glucose level of >=7 mmol/l at the time of diagnosis
Define ‘station’
The term used to describe the head in relation to the ischial spine
3 parameters which indicate an antenatal diagnosis of Down’s Syndrome
Increased HCG
Decreased PAPP-A
Thickened nuchal translucency
How long should you continue magnesium treatment for after the last seizure
24 hours
Give one risk factor for pre-eclampsia
Pre-existing renal disease
What is the only contraindication for epidural anaesthesia in labour
Coagulopathy
When should you attempt to move a breech baby
36 weeks
Are DOACs safe to use in pregnancy?
NO
is it safe to breastfeed a baby with maternal hepatitis B
yes
Define renal agenesis and how would it present
Absence of one or both kidneys
Reduced amniotic fluid
What should you do if there are late decelerations on CTG
Fetal blood sampling
When should methotrexate be stopped before conception?
6 months
How would you manage a women who had a previous baby with group B strep
IV antibiotic prophylaxis
When would you give the first dose of anti-D
28 weeks
What dose of folic acid should you give women?
400 micrograms for the general population
5mg for women with a BMI over 30 or on anti-epileptics or diabetics
What should you do if a woman is exposed to chicken pox during pregnancy?
If they are not immune then give:
Below 20 weeks: varicella zoster immunoglobulin
Above 20 weeks: varicella zoster immunoglobulin or antivirals given at day 7-14 post-exposure (not immediately)
Antihypertensive for pre-eclampsia
Labetalol
If pt has asthma then Nifedipine
What 5 scenarios would warrant continuous CTG monitoring
- suspected chorioamnionitis or sepsis, or a temperature of 38°C or above
- severe hypertension 160/110 mmHg or above
- oxytocin use
- the presence of significant meconium
- fresh vaginal bleeding that develops in labour - this was a new point added to the guidelines in 2014
Define postpartum haemorrhage
Blood loss of 500mls or more within 24 hours of the birth of a baby
2 SSRIs of choice in breastfeeding women
Sertraline
Paroxetine
What medication is absolutely contraindicated in breastfeeding
Aspirin
At what gestation do pregnancy associated blood pressure changes begin?
Past 20 weeks, anything before this is pre-existing hypertension
What is postpartum thyroiditis and how is it treated?
Autoimmune condition which usually lasts for 3-4 months postpartum and is treated with beta blockers
ABx of choice for GBS prophylaxis
IV benzylpenicillin
Bright red vaginal bleeding with a non-tender uterus and normal CTG at 28 weeks
Placenta praevia
Constant pain with bleeding and ‘woody’ abdomen with uterine contractions and foetal distress on CTG
Placental abruption
Painless vaginal bleeding before 24 weeks
Threatened miscarriage
Maternal shock, abdominal pain and fetal compromise
Uterine rupture
Rupture of membranes and dark red vaginal bleeding with foetal bradycardia
Vasa praevia
Pregnant women with a previous VTE history
LMWH throughout pregnancy until 6 weeks postpartum
Pre-existing diabetic treatment throughout pregnancy
Metformin and insulin are the only drugs
Other drugs such as glicazide and liraglutide are contraindicated
First step for chickenpox exposure in pregnancy
Check varicella antibodies
What is syndometrine
Works the same as oxytocin to contract the uterus during the third stage of labour
When should you investigate a lack of foetal movements?
24 weeks
Woman presents with reduced foetal movements after 28 weeks
Handheld doppler
If no heartbeat found then immediate ultrasound
What should you do if you suspect maternal rubella infection
Discuss immediately with the local health protection unit
Management of pregnant women above 20 weeks who develop chickenpox and present within 24 hours
Oral aciclovir
Management of intrahepatic cholestasis of pregnancy
Induce at 37-38 weeks due to increased risk of stillbirth
Management of PPROM
10 days erythromycin
first-line medical treatment for intrahepatic cholestasis of pregnancy
ursodeoxycholic acid
6 levels of management for PPH
bimanual uterine compression to manually stimulate contraction
intravenous oxytocin and/or ergometrine
intramuscular carboprost
intramyometrial carboprost
rectal misoprostol
surgical intervention such as balloon tamponade
Which presentation has the greatest mortality
Footling
Increased risk of cord prolapse
Features of HELLP syndrome
Haemolysis (H), elevated liver enzymes (EL), and low platelets (LP)
Severe form of pre-eclampsia with malaise, nausea, vomiting, headache, epigastric pain
% risk of developing postpartum psychosis a second time
25-50%
At what gestation is the second screen for anaemia and atypical red cell alloantibodies performed?
28 weeks