Which of the following is a common symptom associated with postural hypotension?

Dizziness or lightheadedness is a hallmark symptom of postural hypotension, also known as orthostatic hypotension. This condition occurs when a person's blood pressure drops significantly upon standing up from a sitting or lying position, leading to reduced blood flow to the brain. As a result, the body may experience a sudden feeling of dizziness or lightheadedness as it struggles to adjust to the change in position and maintain adequate blood pressure.

Other symptoms such as fatigue and weakness, chest pain and palpitations, or shortness of breath may occur in different conditions but are not specifically associated with the rapid changes in blood pressure that characterize postural hypotension. Dizziness or lightheadedness strongly indicates the body’s physiological response to insufficient blood flow, making it a key symptom to identify in diagnosing and managing this condition.