O&G Vivas · Antenatal care — preconception
Pre-pregnancy counselling — structured oral station (12 minutes)
FRANZCOG oral-format station on pre-pregnancy optimisation of a woman with epilepsy on valproate: candidate builds the plan, defends the valproate transition with evidence, and demonstrates counselling of the woman. Scored against the eight published RANZCOG oral domains.
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Station format
4 minutes reading, 12 minutes examination, 20 marks, global scoring. The eight published RANZCOG oral domains apply to every station: history and examination; investigations and interpreting results; treatment and management; clinical knowledge; complex, urgent or unusual clinical presentations; rapport; respect; communication. You are marked on how you behave, not only what you know. [1]
Reveal the examiner script and model responsesShowHide
Opening prompt — "Walk me through her pre-pregnancy plan."
Model response — say it in this order: [1][4]
- "First, contraception until the plan is in place, because the neural tube closes by day 28."
- "Folate 5 mg daily — she is on an antiseizure medication, which is a high-risk indication — from four weeks before trying to 12 weeks."
- "Iodine 150 micrograms daily, no alcohol, smoking cessation, and weight loss toward a BMI of 18.5 to 24.9."
- "The key decision is her antiseizure medication: I would plan, with her neurologist, to transition her away from sodium valproate to monotherapy with lamotrigine or levetiracetam at the lowest effective dose, well before conception."[1][6]
Examiner is listening for: the 5 mg dose (not 400 micrograms), the valproate transition named proactively, and contraception-until-ready. [1]
Probe 1 — "Why transition off valproate? She is seizure-free on it."
- "Valproate is doubly harmful in pregnancy. It causes neural tube defects, and it causes dose-dependent neurodevelopmental harm — the NEAD cohort showed lower cognitive outcomes at 4.5 years, and a Danish population study linked prenatal valproate to an increased risk of autism spectrum disorder."[6][7]
- "The aim is monotherapy at the lowest effective dose with a safer agent. I would not stop it abruptly — a generalised seizure in pregnancy is also dangerous — I would transition in advance with neurology, confirming seizure control on the new regimen before she conceives."[8]
Probe 2 — "What if valproate is genuinely the only drug that controls her seizures?"
- "Then the decision is made explicitly and jointly: the woman, her neurologist and I document that the benefit of seizure control outweighs the fetal risk, she stays on the lowest effective dose, takes 5 mg folate, and has first-trimester screening and a detailed anatomy scan. This is an exception that proves the rule, not the default."[6][8]
Probe 3 — "She asks whether 400 micrograms of folate from the pharmacy is enough."
- "For her, no. Antiepileptic medication is on the RANZCOG high-risk list, so she needs 5 mg daily. The 400 microgram dose is for women with no risk factors. Starting it before conception matters because the neural tube closes by day 28."[1][4]
Probe 4 — "Counsel her. She is anxious about harming her baby."
This is a scored domain, not a courtesy. Demonstrate it out loud: [1]
- Move to her eye level, use her name, and validate the fear: "It is completely reasonable to want to get this right, and the fact that you are here a year before trying is already protecting your baby."
- Brief plainly: "We will change one of your tablets to a safer one with your neurologist, start a higher dose of folic acid, and you will stop alcohol and smoking. Once those are in place, your pregnancy will start in the safest possible way."
- Offer a written plan, a follow-up contact, and involvement of her partner. Avoid jargon and avoid a dismissive "don't worry."[1]
Probe 5 — "What else before she is cleared to conceive?"
- Confirm seizure control on the new regimen for several months; check FBC, ferritin, TSH, blood group, rubella/varicella/hepatitis B immunity, HIV and syphilis; offer reproductive carrier screening (C-Obs 63).[1]
References5ShowHide
- [1]Royal Australian and New Zealand College of Obstetricians and Gynaecologists (RANZCOG) Pre-pregnancy counselling (C-Obs 3a), Version 13.1 RANZCOG Clinical Guideline, 2024.Source
- [4]Barry MJ, Nicholson WK, Silverstein M, et al. Folic Acid Supplementation to Prevent Neural Tube Defects: US Preventive Services Task Force Reaffirmation Recommendation Statement JAMA, 2023.PMID 37526713
- [6]Meador KJ, Baker GA, Browning N, et al. Effects of fetal antiepileptic drug exposure: outcomes at age 4.5 years Neurology, 2012.PMID 22491865
- [7]Christensen J, Grønborg TK, Sørensen MJ, et al. Prenatal valproate exposure and risk of autism spectrum disorders and childhood autism JAMA, 2013.PMID 23613074
- [8]Adam MP, Polifka JE, Friedman JM Evolving knowledge of the teratogenicity of medications in human pregnancy Am J Med Genet C Semin Med Genet, 2011.PMID 21766440