When a person has been lying in bed for a long time, they may experience what condition when suddenly standing up?

Question

Quizplus · Accepted Answer

When a person has been resting in bed, especially for a long time, sitting up and then standing causes blood to flow to the legs and away from the head. This can lead to dizziness and fainting. The other options are necessarily related to periods of immobility and the resulting cardiac reactions.

When a Person Has Been Lying in Bed for a Long