How is gestational hypertension typically characterized?

Gestational hypertension is typically characterized by its onset after 20 weeks of gestation. This condition is defined as new onset hypertension (systolic blood pressure of 140 mmHg or higher, or diastolic blood pressure of 90 mmHg or higher) that develops during pregnancy without the presence of protein in the urine or other signs of organ dysfunction. The timing of the onset is critical; if high blood pressure occurs before 20 weeks of gestation, it is usually indicative of pre-existing hypertension rather than gestational hypertension.

The identification of gestational hypertension is significant for monitoring and managing the health of both the mother and fetus, as it can lead to complications like preeclampsia if not properly managed. Understanding the timing helps differentiate between various types of hypertension that can occur during pregnancy, ensuring appropriate clinical interventions and patient education are provided.