Final answer:
A nurse reviewing a Snellen chart test result for a diagnosis of legal blindness would expect to note a vision measurement of 20/200 or worse.
Step-by-step explanation:
The subject in question is related to the Snellen chart, which is a standardized tool used to assess visual acuity. When a clinic nurse reviews the results of the Snellen's chart test and the diagnosis of legal blindness is documented, they would expect to note a vision reading indicating significant visual impairment. In the context of legal blindness, a Snellen chart reading is typically 20/200 vision or worse in the better eye, meaning that what a person with normal vision can see at 200 feet, a legally blind individual would need to be at 20 feet to see the same thing.