You ask a patient to hold her arms up, with her palms up, and then to close her eyes. The right arm begins to move downward after a few seconds and her thumb rotates upward. This is most likely a problem with which part of the nervous system?

Question

Quizplus · Accepted Answer

This describes a pronator drift, which signifies decreased position sense involvement of the corticospinal tract. This tract does not travel through the thalamus. This is commonly tested as an early sign of stroke. This would not occur with a dorsal root ganglion problem.

You Ask a Patient to Hold Her Arms Up, with Her