The plan may include activities, such as administering medication, including careful checking of dosages and avoiding interactions; starting, maintaining, and discontinuing intravenous (IV) lines for fluid, medication, blood, and blood products; administering therapies and treatments; observing the patient and recording those observations; and consulting with physicians and other healthcare clinicians. The RN may continue to improve the patients ESSENTIAL FUNCTIONS Possess the knowledge of how to collect health data in a systematic and ongoing manner, prioritizing data collection as determined by the patient’s immediate condition or needs and involving the family.