A client recently diagnosed with Hodgkin's disease undergoes biopsy of cervical lymph nodes under local anesthesia. Which intervention is most important to include in this client's plan of care?

Perform neurological assessment prior to discharge.

Assess for drainage on dressing covering cervical incision.

Auscultate blood pressure every 15 minutes for one hour.

Monitor for tracheal deviation and swelling at biopsy site.