A nurse is caring for a client who has a new diagnosis of schizophrenia and a prescription for an antipsychotic medication. Which of the following should the nurse recognize as an adverse effect that must be immediately reported to the provider?

The client is observed displaying a shuffling gait while walking in the hall.

The client is observed mumbling quietly while alone in the day room.

The client states, "Being in the sun seems to really hurt my eyes."

The client states, "I feel light-headed when I stand up quickly."