A nurse is about to administer an injection to a client when the client states, "I don't want that injection. The last time I got that I was sore for a week." The nurse goes ahead and administers the injection against the client's wishes. The nurse committed which of the following?

A. Instruct visitors to stand 0.6 m (2 feet) away from the client: While maintaining distance can reduce radiation exposure, standard precautions for sealed implants typically require visitors to be limited in time and distance, but the priority for staff is proper protective equipment rather than only instructing visitors.

B. Wear a lead apron when providing care for the client: Wearing a lead apron is essential for staff safety when caring for a client with a sealed radiation implant. The apron shields the nurse from radiation exposure, which is the primary protective measure during direct care.

C. Remove all bed linens from the client's room each day: Frequent removal of linens is unnecessary for sealed radiation implants because the radiation source is contained. Standard precautions for linen handling are sufficient unless the linens are visibly contaminated with bodily fluids.

D. Place a dosimeter film badge at the client's bedside: Dosimeter badges are worn by staff to monitor personal radiation exposure, not placed at the client’s bedside. Proper usage involves staff wearing the badge on their body while providing care.

A. Monitor the client for hypothermia: Hypothermia is not a typical adverse effect of haloperidol. The medication more commonly causes extrapyramidal symptoms and neuroleptic malignant syndrome, which may include hyperthermia rather than hypothermia.

B. Screen the client for tardive dyskinesia: Tardive dyskinesia is a serious, potentially irreversible extrapyramidal side effect associated with long-term use of antipsychotics such as haloperidol. Routine screening using tools like the Abnormal Involuntary Movement Scale (AIMS) is essential to detect early signs and adjust therapy as needed.

C. Check the client's weekly potassium level: Haloperidol does not typically affect potassium levels. Routine electrolyte monitoring is not indicated unless the client has other conditions or is taking medications that affect potassium.

D. Schedule the client for a 24-hr urine collection: A 24-hour urine collection is unrelated to haloperidol therapy. This test is used to assess kidney function or specific metabolic conditions and is not part of routine care for clients taking antipsychotics.