What defines gestational hypertension?

Gestational hypertension is defined by elevated blood pressure readings that occur after 20 weeks of gestation, specifically characterized by a reading of greater than 140/90 mmHg on two separate occasions. This definition is important because it helps to distinguish gestational hypertension from other hypertensive disorders in pregnancy, such as preeclampsia, which typically involves proteinuria and other systemic issues.

The need for readings on two separate occasions reinforces the importance of consistent monitoring, as transient elevations in blood pressure can occur due to various factors, emphasizing the need for a reliable diagnoses method. This classification aids in the appropriate management and monitoring of the patient to prevent complications for both the mother and the fetus associated with severe hypertension.

While the threshold given in other choices may indicate hypertension in general, they do not meet the specific criteria for gestational hypertension or are defined incorrectly concerning the condition.