Biases are preconceived notions or attitudes that can influence a nurse's actions and decisions. These can be _conscious_ or _unconscious_, and they often stem from cultural, social, or personal experiences. Common biases in nursing may involve assumptions based on a patient's age, ethnicity, socioeconomic status, or medical history. For example, a nurse might unconsciously believe that younger patients are more likely to recover quickly, which could affect how they prioritize care.