Prior to referring a patient to a neurologist, a general practitioner or MS nurse will perform a finger-to-nose test.

(Interestingly, HACE doesn't affect the performance of a finger-to-nose test.)

In a finger-to-nose test, a physician has the individual touch their nose with their finger while monitoring for irregularity in timing and control of the movement.

After a positive result in the finger-to-nose test, a neurologist will do a magnetic resonance image (MRI) to determine any damage to the cerebellum.