A nurse is evaluating an 8-month-old infant's pain level following the administration of hydrocodone. Which of the following pain scales would the nurse use?

A) Oucher scale: The Oucher scale is a pain assessment tool that is appropriate for children ages 3 to 12 years. It uses a series of photos depicting facial expressions that range from no pain to extreme pain. While useful for older children, it is not the most appropriate choice for an 8-month-old infant. B) Visual Analog scale: The Visual Analog scale is typically used for children and adults who are able to understand and use numerical ratings or visual representations of pain. Since an 8-month-old infant is unable to verbally communicate or use this scale, it would not be suitable for evaluating their pain. C) FLACC scale: The FLACC scale (Face, Legs, Activity, Cry, Consolability) is designed for infants and young children who are unable to verbally communicate their pain. It is ideal for assessing the pain levels of infants, as it evaluates observable behaviors like facial expressions, leg movement, and crying, which are indicators of pain in nonverbal children. D) FACES pain scale: The FACES pain scale is typically used for children as young as 3 years old, but it requires the child to be able to identify and select facial expressions that correspond to their pain. An 8-month-old infant would not be able to engage with this scale, as it requires some cognitive development and understanding of emotional expressions.