What do registered nurses do?

Registered Nurses assess and care of patients throughout the spectrum. They provide interventions based on a patient's diagnosis to improve their outcome. Nurses do not simply follow a doctor's command, nurses need to have Excellent critical thinking skills in order to understand the patient's pathophysiology and pharmacology and how this effect's the patient. Often if there is a change in a patient's status the nurse is the first to notice and must alert the doctor for critical drug and lab values.