Final answer:
Signs that may indicate a need for insulin in a diabetic child include diaphoresis and tremors, confusion and lethargy, headache and pallor, and a fruity odor to the breath.
Step-by-step explanation:
A need for insulin in a diabetic child may be indicated by symptoms such as diaphoresis (excessive sweating) and tremors, confusion and lethargy, or headache and pallor. Another symptom that may indicate the need for insulin is a fruity odor to the breath, which can be a sign of ketoacidosis.