Which type of hypertension is characterized by consistently high blood pressure with no identifiable cause?

The correct answer is primary hypertension. This type of hypertension, also known as essential hypertension, is defined by its prevalence and the absence of an identifiable medical condition that causes the increased blood pressure. It typically develops gradually over many years and tends to be influenced by genetic, environmental, and lifestyle factors, such as diet and physical activity.

In contrast, secondary hypertension arises from an identifiable cause, such as kidney disease or hormonal disorders, and often requires treating the underlying condition to manage blood pressure. Malignant hypertension represents a severe form of elevated blood pressure that progresses rapidly and can lead to serious health complications; it is also characterized by identifiable symptoms and complications. Isolated systolic hypertension is related to elevated systolic pressure specifically, often seen in older adults, but it also does not fit the criteria of no identifiable cause for hypertension.

Understanding the distinctions between these types of hypertension is crucial for appropriate diagnosis and management, making primary hypertension essential to recognize as it constitutes the majority of hypertension cases without any clear underlying medical issue.