After repeating the vital signs for a newborn who is 4 hours old, the practical nurse (PN) obtains an axillary temperature of 97.2°F and places the newborn under a radiant heat warmer. Which additional finding should the PN observe in the newborn?
a. Respiratory depression.
b. Tremors of the hands during crying.
c. Flushing of the skin.
d. An increase in heart rate.