In Assessing the Amount of Head Lag in an Infant

In assessing the amount of head lag in an infant, the nurse will:

A) see how long the infant can hold his or her own head up, measuring the time in seconds
B) pull the infant up by the arms from a supine to a sitting position
C) measure the distance from the baby's fingertips to the ear
D) hold the baby upright in the nurse's lap and let the head fall back against the nurse's chest