Question:
A 36-week pregnant lady has a history of one previous twin delivery. What is her obstetric (gravida-para) score?
A 36-week pregnant lady has a history of one previous twin delivery. What is her obstetric (gravida-para) score?
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A twin pregnancy is counted as one gravida and one para, not two.
Updated On: Jun 23, 2026
- G2P1
- G2P2
- G3P2
- G3P3
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The Correct Option is A
Solution and Explanation
Step 1: Gravida counts every confirmed pregnancy once, no matter how many fetuses it contained. A twin pregnancy is still one gravida.
Step 2: This woman had one previous twin pregnancy and is now pregnant again, so she has had 2 pregnancies in total: gravida 2 (G2).
Step 3: Parity is the number of births after 20 weeks, again counted per delivery and not per baby. Her single previous delivery (of twins) counts as parity 1 (P1).
Step 4: So the score is G2P1. The current ongoing pregnancy adds to gravida but not yet to parity because she has not delivered.
Ref: Dutta Obstetrics, 8th ed, p. 107.
Step 2: This woman had one previous twin pregnancy and is now pregnant again, so she has had 2 pregnancies in total: gravida 2 (G2).
Step 3: Parity is the number of births after 20 weeks, again counted per delivery and not per baby. Her single previous delivery (of twins) counts as parity 1 (P1).
Step 4: So the score is G2P1. The current ongoing pregnancy adds to gravida but not yet to parity because she has not delivered.
Ref: Dutta Obstetrics, 8th ed, p. 107.
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