A nurse is caring for a client who has a subarachnoid hemorrhage and asks why they are having a CT angiography. Which of the following should the nurse understand about CT angiography?

A CT angiogram will reveal any overproduction of cerebrospinal fluid (CSF).

A CT angiogram will reveal any decreased blood flow related to vasospasm.

A CT angiogram will reveal any detailed, minimal changes in the brain tissue.

A CT angiogram will reveal any edema within the brain tissue.