Final answer:
Washing hands before and after patient care is crucial for reducing the risk of infection, emphasizing the use of warm water and proper hand drying techniques.
Step-by-step explanation:
The action by the nurse that will reduce the risk of infection when assisting a patient with personal hygiene care is washing hands before and aftercare. Proper handwashing is paramount in preventing the spread of infection and pathogens. Warm water should be used in the handwashing process, and hands should be thoroughly rinsed from the wrist to the fingertips to ensure that any microorganisms are washed away. Drying hands thoroughly with a clean towel or a hot air blower and using a towel to turn off faucets can also decrease infection risks.