Which information about the patient who had a subarachnoid hemorrhage is most important to communicate to the health care provider?
a. The patient reports having a stiff neck.
b. The patient's blood pressure (BP) is 90/50 mm Hg.
c. The patient reports a severe and unrelenting headache.
d. The cerebrospinal fluid (CSF) report shows red blood cells (RBCs).
