The client newly diagnosed with chronic renal failure recently has begun hemodialysis. Knowing that the client is at risk for disequilibrium syndrome, the nurse assesses the client during dialysis for:

A. Hypertension, tachycardia, and fever.

B. Hypotension, bradycardia, and hypothermia.

C. Restlessness, irritability, and generalized weakness.

D. Headache, deteriorating level of consciousness, and twitching.