Selecting the correct size of an uncuffed tube is critical for ensuring adequate ventilation and preventing complications. The size is typically determined based on the age and weight of the child. A common formula used is the (Age/4) + 4 for children older than 1 year. For neonates and infants, the size is usually between 2.5mm to 4.0mm in internal diameter. Always confirm the size by consulting the latest guidelines and protocols.
