A 64-year-old client reports symptoms consistent with a transient ischemic attack (TIA) to the physician in the emergency department. After completing ordered diagnostic tests, the physician indicates to the client what caused the symptoms that brought him to the hospital. What is the origin of the client's symptoms?
a) Hypertension
b) Cardiac disease
c) Diabetes insipidus
d) Impaired cerebral circulation
Answer: Impaired cerebral circulation