Final answer:
The nursing diagnoses for each age group related to the given information are: Toddler - Anxiety related to fear of the unknown and separation from parents, Preschooler - Knowledge deficit related to the surgical procedure, Adolescent - Risk for impaired skin integrity related to the surgical site.
Step-by-step explanation:
- Toddler: Anxiety related to fear of the unknown and separation from parents, as evidenced by crying and clinging behavior.
- Preschooler: Knowledge deficit related to the surgical procedure, as evidenced by the child's inability to verbalize understanding.
- Adolescent: Risk for impaired skin integrity related to the surgical site, as evidenced by redness and swelling around the incision area.