Which of the following is a risk factor for low blood pressure?

A risk factor for low blood pressure, or hypotension, is indeed age. As individuals grow older, they may experience changes in their vascular system and heart function, which can lead to a higher propensity for low blood pressure. Older adults are often more susceptible to orthostatic hypotension, which is a sudden drop in blood pressure that occurs when standing up from a seated or lying position. Additionally, age can increase the likelihood of underlying health conditions and the effects of medications that can influence blood pressure levels.

While height, weight, and gender can have some association with blood pressure variations, they are not considered direct risk factors for low blood pressure in the same manner that age is. Height might influence blood volume and cardiac output, while weight can impact overall health and potentially blood pressure, neither of which establish a clear risk factor as age does. Gender can play a role in blood pressure differences, but the relationship is more complex and does not directly correlate to the risk of low blood pressure in the same explicit way.