Final answer:
The formula for figuring out the size of a cuffed endotracheal tube is based on the patient's age and the inner diameter of the tube.
Step-by-step explanation:
The formula for figuring out the size of a cuffed endotracheal tube is based on the patient's age and the inner diameter of the tube. The formula is:
Tube Size = (age/4) + 3.5
For example, if a patient is 10 years old, the tube size would be (10/4) + 3.5 = 5.5