How should a layperson assist someone experiencing orthostatic hypotension?

In the case of someone experiencing orthostatic hypotension, laying them flat in a supine position is the most effective immediate response. This position helps facilitate blood flow back to the heart and brain, which can alleviate symptoms like dizziness or fainting that often accompany orthostatic hypotension. When a person experiences a drop in blood pressure upon standing, their heart and vascular system may struggle to adjust quickly. By lying flat, gravity assists in maintaining blood flow to vital organs, thereby reducing the risk of falls or further complications.

Raising the legs above heart level can also help, but it is typically less effective than lying flat. While standing up slowly is often advised as a preventative measure for those able to manage postural changes, it is not appropriate as an immediate response during an episode. Offering water can be beneficial for hydration and may be part of longer-term management, but it would not provide the immediate support needed during an acute episode.