diagnosis of postmaturity
Last reviewed 01/2018
The diagnosis of postmaturity is often very uncertain.
Antenatal records should be consulted for accurate predictors of the gestational age. Relevant information includes:
- a certain LMP in a woman with regular periods
- a bimanual examination between the 8th and 14th weeks of gestation
- a crown-rump measurement (1st trimester) or biparietal diameter (2nd trimester) by ultrasound scan