Final answer:
For a term newborn, a laryngoscope blade of size 0 or 1 is typically used, with size 1 being most common for full-term infants, and size 0 for preterm infants or smaller-term newborns.
Step-by-step explanation:
The size of a laryngoscope blade that would be typically used for a term newborn is a size 0 or 1. Neonates require a smaller blade than older children or adults, and the choice between sizes generally depends on the specific clinical scenario and the provider's preference.
A size 0 blade is often used for preterm infants, while term newborns can frequently be intubated with a size 1 straight blade. In some cases, a size 0 might still be appropriate for a smaller-term newborn. The goal is to use the blade that provides the best visualization of the vocal cords while causing the least amount of tissue trauma.