Question

what does transtentorial herniation usually produce? blindness in one eye respiratory arrest nystagmus severe lateral headache one dilated pupil

Explanation:

Transtentorial herniation can compress the oculomotor nerve, leading to pupillary changes. Compression of this nerve typically causes ipsilateral pupillary dilation. Respiratory arrest can occur in severe cases of brain - stem compression due to herniation but is not the most common immediate finding. Blindness in one eye, nystagmus, and severe lateral headache are not the typical immediate results of transtentorial herniation compared to pupillary changes.

Answer:

one dilated pupil