A 78-yeаr-оld pаtient, 2 dаys pоst–right hip ORIF, was alert and оriented with clear speech earlier in the morning. Thirty minutes later, the nurse finds the patient lethargic with slurred speech and drooling from the left side of the mouth. The nurse documents the following assessment findings. Temperature 98.8° F (37.1° C) HR 110 beats/min, irregular rhythm BP 155/99 mm Hg RR 22 breaths/min O2 saturation 97% on room air Oriented to person only Dysarthria PERRLA Left side hemiplegia and ptosis Capillary blood glucose 88 mg/dL (4.89 mmol/L) What is the most likely explanation for the client’s current condition?