As an office licensed practical nurse (office LPN), your duties depend on the particular needs of your employer. Your responsibilities may include managing office operations and administrative duties. You may oversee medical assistants and other support staff. In an outpatient clinic, an LPN may take each patient to the exam room, measure vital signs, collect information about the patient’s visit for the doctor, and assist the doctor with treatments, immunizations, and medical record keeping. An LPN may perform triage, advise patients over the phone, and provide documents for prescriptions and referrals.