When can preeclampsia be diagnosed?

Preeclampsia is characterized by the onset of new hypertension along with evidence of proteinuria or signs of end-organ dysfunction after 20 weeks of gestation. The correct diagnosis criteria highlight the importance of recognizing both elevated blood pressure and associated symptoms that may indicate compromised organ function or systemic health.

In the context of pregnancy, hypertension is defined as blood pressure readings of 140/90 mmHg or higher. Proteinuria, which indicates the presence of excess protein in the urine, is a significant finding when diagnosing preeclampsia, as it reflects renal involvement. End-organ damage can manifest as various clinical signs, such as headaches, visual disturbances, liver enzyme elevation, or decreased urine output, which further strengthens the diagnosis.

This diagnosis is crucial for the safety of both the mother and fetus, as preeclampsia can lead to severe complications if left untreated. While new-onset hypertension after 24 weeks could suggest preeclampsia, the earlier timeline of 20 weeks is more appropriate for the diagnosis, as it allows for the recognition of the condition sooner in the course of pregnancy, ensuring timely management and intervention.