Final answer:
The question seems to refer to healthcare categories based on age, specifically infants and adults. Infancy is a period of significant growth and developmental milestones in the first year of life, whereas adulthood is the stage of full maturity. Different health approaches are needed for each age group.
Step-by-step explanation:
The student's question seems to be asking about the differences between patient categories based on age, particularly focusing on infants and adults. However, the question about changing between patient categories is unclear because typically there is no 'changing' between these categories; they are defined based on the individual's age and developmental stage.
Infancy is the period from birth up to one year of age. During this time, the infant undergoes significant growth in size and developmental milestones such as rolling over, sitting up, and possibly starting to walk. On the other hand, adulthood represents a stage where an individual has reached full physical maturation and is considered legally responsible for their actions.
A toddler is a child aged between one and three years old. This stage is characterized by rapid development in motor skills, vocabulary, and social interaction. The transition from adolescence to adulthood can be particularly challenging due to various factors including the timing of puberty and societal expectations.
In terms of health care, different approaches and considerations are required for infants compared to adults, such as the necessity to monitor infant mortality rate and ensuring proper immunizations and feedings for a growing child.