Final answer:
The need for speech therapy in a preschooler is indicated by difficulty pronouncing certain sounds. This can be addressed by speech therapists who work on specific pronunciation challenges and support language development broadly.
Step-by-step explanation:
Among the options presented for a preschooler, the finding that should indicate to a nurse a need for speech therapy is: Difficulty pronouncing certain sounds. This could be indicative of a communication disorder or speech delay, which speech therapy is apt to address. The other options presented (frequent coughing during meals, shyness around other children, height below the 5th percentile) might suggest other concerns, such as swallowing difficulties, potential psychological or social issues, and growth concerns, none of which are directly related to speech therapy.
Children with dyslexia or other language disorders might exhibit similar problems, which can involve difficulties with spelling, reading, speaking, and sometimes, handling numbers. Speech therapists can provide interventions that target specific pronunciation problems and other language challenges to support language development.
It's also worth noting that cognitive and language development are closely linked during early childhood, a period in which children can greatly benefit from interventions that promote language skills, as seen in the example of specialized preschools improving language development among children from diverse economic backgrounds.