Final answer:
The statement that vernix caseosa can be left on the newborn for hours is true. Vernix caseosa is a protective waxy coating that can continue to benefit the newborn's skin post-birth by providing moisturization and protection against infection.
Step-by-step explanation:
It is true that vernix caseosa can be left on the newborn for hours. Vernix caseosa is a thick waxy coating that forms on the fetus's skin in utero. This substance serves to protect the fetus's skin from becoming chapped or irritated by the amniotic fluid. After birth, the vernix can still be present on the newborn's skin, providing additional benefits.
Leaving the vernix on the newborn for a period of time after birth has potential benefits, such as moisturizing the skin and providing a barrier against infection. Some maternity care practices involve leaving the vernix to absorb naturally into the newborn's skin before the first bath. Moreover, the large quantity of antioxidant properties in the vernix also indicates its protective role for the newborn's skin against oxidative damage. Therefore, it is not necessary to immediately wash it off and can safely remain for hours post-delivery.