The document introduces the concept of the 5 Moments for Hand Hygiene, which are: 1) Before touching a patient, 2) Before a procedure, 3) After a procedure or body fluid exposure risk, 4) After touching a patient, and 5) After touching a patient's surroundings when the patient has not been touched. It defines key terms like patient, procedure, and surroundings. It provides examples for when each moment should be performed and the negative outcomes each moment aims to prevent, such as cross-contamination and infection.