A nurse is reinforcing teaching with a newly licensed nurse about ethical principles when providing client care. Which of the following situations should the nurse use as an example of negligence?

A client who is alert and oriented makes an informed decision to leave the hospital against medical advice. The nurse applies restraints to the client to prevent her from leaving.

A nurse finds a client who is on a low-sodium diet eating salted potato chips. The nurse tells him she will apply wrist restraints if he does not stop eating the chips.

A nurse identifies the absence of peripheral pulsation in a casted extremity in the early morning. The nurse reports the findings to the provider in the early afternoon.

A client who is competent refuses an antidepressant medication. The nurse dissolves the medication in food and administers it to the client without his knowledge.