Final answer:
The maximum heel-stick depth on infants is up to 2.0mm for preterm and 2.5mm for full-term infants, essential for safe pediatric blood sampling.
Step-by-step explanation:
The maximum depth for a heel-stick on an infant is typically recommended to be 2.0 millimeters for preterm infants and up to 2.5 millimeters for full-term infants.
This procedure is executed for pediatric blood sampling and is carefully regulated to minimize discomfort and avoid injury to the infant's bone or tissues.
It is important for healthcare professionals to use the correct technique and equipment to ensure the safety and wellbeing of the infant during this procedure.