A Baby Was Born 4 Days Ago at 34 Weeks

A baby was born 4 days ago at 34 weeks' gestation and is receiving phototherapy for neonatal jaundice.The baby has symptoms of temperature instability,dry skin,poor feeding,lethargy,and irritability.What are the nurse's priority nursing interventions?

A) Assess the baby's temperature to check for hypothermia.
B) Check to make sure the infant's face mask stays in place.
C) Educate the mother to feed the child every 2 hours.
D) Verify laboratory results to check for hypoglycemia.
E) Verify laboratory results to check for hypomagnesemia.