Which finding characterizes severe preeclampsia as opposed to mild disease?

• A. Pulmonary edema
• B. Hypertension with no symptoms
• C. Proteinuria detected only by tests
• D. Gestational diabetes

Answer: (A)

Severe preeclampsia is defined by the presence of features that show end-organ involvement or serious cardiopulmonary compromise. Pulmonary edema represents a clear, objective sign of severe disease because it reflects significant capillary leak, fluid overload, and impaired oxygenation that goes beyond the mild range of hypertension and proteinuria. When pulmonary edema occurs, it signals that the body's systems are struggling to cope with the new-onset hypertension and abnormal placental factors, often requiring more urgent management and closer monitoring.

The other findings point to milder or non-severe scenarios. Hypertension with no symptoms can occur in uncomplicated or mild preeclampsia, but without additional severe features it doesn’t indicate progression to a severe state. Proteinuria detected only by tests may indicate preeclampsia, but on its own it doesn’t establish severity without accompanying end-organ dysfunction. Gestational diabetes is a separate condition and does not define the severity of preeclampsia.