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OG8.2-3 | Obstetric History and Examination — SDL Guide (Part 3)

Self-Assessment: Obstetric History and Examination

The competencies assessed in OG8.2 and OG8.3 are skills competencies (SH level) — meaning that factual knowledge alone is insufficient. You must be able to demonstrate the technique in a clinical or simulated environment, and the questions below are calibrated to the level of clinical reasoning expected at that level. Before reviewing the answers, attempt each question with the reasoning that you would apply at the bedside or in an OSCE station. Self-assessment at this level is not about whether you can retrieve the correct answer from memory — it is about whether you can generate a correct clinical response from a realistic clinical scenario with incomplete or contradictory information, which is what the actual bedside examination requires of you.

Review the following clinical scenarios and self-check questions:
- A woman at 28 weeks has her SFH measured as 32 cm. List three possible explanations for this discordance and the investigation you would order.
- Describe the four Leopold's manoeuvres in sequence: what does each manoeuvre assess, and what are you feeling for?
- A woman says her LMP was 'around Diwali last year'. How would you approach dating this pregnancy when exact LMP is unavailable?
- State the GPA notation for: a woman currently pregnant, who has had two previous term deliveries (both normal vaginal), one first-trimester miscarriage, and all children living.
- At 38 weeks, you feel a soft, irregular mass in the fundus and a firm, round, ballotable mass in the lower uterine segment on third grip. What is the fetal presentation, and what is your next clinical step?

SELF-CHECK

A 30-year-old woman is currently in her fourth pregnancy. She has had two term normal vaginal deliveries, one second-trimester loss at 22 weeks due to antepartum haemorrhage, and all two children from term deliveries are living. What is the correct GPA notation?

A. G4P2+1L2

B. G4P3+0L2

C. G3P2+1L2

D. G4P2+0L2

Reveal Answer

Answer: B. G4P3+0L2

Gravida (G) = total number of pregnancies including the current one = 4. Para (P) = number of deliveries BEYOND 20 weeks regardless of outcome = 3: two term vaginal deliveries + the 22-week loss (which is at 22 weeks, beyond the 20-week threshold, so it counts as a Para not an Abortion). Abortion (+0) = losses BEFORE 20 weeks = 0 (none). Living (L) = living children = 2 (the two children from term deliveries; the 22-week loss did not survive). Therefore the correct notation is G4P3+0L2. This question tests the critical 20-week rule: any pregnancy delivered at or after 20 weeks is counted as Para, even if the baby did not survive.

Interactive practice: Multiple Choice

Interactive practice: True / False