Main functions:

■ The product has the physiological characteristics of premature babies. Weight less than 2500 grams, body length less than 47cm, soft, bright red skin, thin skin visible blood vessels, facial skin slack, more wrinkles, neck muscle weakness, low muscle tension in limbs, more fetal hair, soft ear shell, unclear areola, less foot soles, male testicles did not fall, female labia majora can not cover the labia minora. Physiological jaundice was observed.

■ Palpation of preterm fontanel, wide skull suture, large fontanel, soft fontanel margin.

■ Cleaning and bathing exercises for premature infants in the incubator.

■ Sputum aspiration and nasal feeding exercises.