Final answer:
The most distinguishing feature of malignant hypertension is that it is a severe form of hypertension that can cause organ damage and is considered a medical emergency.
Step-by-step explanation:
The most distinguishing feature of malignant hypertension is that it is a severe form of hypertension that can cause organ damage and is considered a medical emergency. Unlike regular hypertension, which may not cause symptoms, malignant hypertension often presents with symptoms such as severe headache, blurred vision, chest pain, shortness of breath, and nausea.
Additionally, malignant hypertension is characterized by significantly high blood pressure, usually above 180/120 mm Hg. This high blood pressure can cause damage to blood vessels, leading to conditions such as retinopathy (damage to the blood vessels in the retina), nephropathy (kidney damage), or encephalopathy (brain damage).
Treatment for malignant hypertension involves immediate hospitalization and the use of intravenous medications to lower blood pressure gradually. Long-term management of hypertension is also necessary to prevent future episodes and complications.