What is unspecified transient cerebral ischemia?

Cause unclear: There is brief, diminished circulation to the brain without a clear cut cause (like a cardiac arrhythmia or blocked neck artery) that is responsible for the symptoms being investigated. The term is vague and unsatisfying so it's understandable if you're still in the dark.

See below: Am not familiar with "unspecified", but transient cerebral ischemia means diminished blood flow to a part of the brain causing clinical symptoms. Since this can be the first sign of an impending stroke, this needs to be fully evaluated and medication started for prevention. See a neurologist and get this fully addressed.