Lanugo covers the fetus’s body - hypoglycemia causes temperature instability In a neonate

- Lanugo covers the fetus’s body until about 20 weeks’ gestation. Then it begins to disappear from the face, trunk, arms, and legs, in that order.

- In a neonate, hypoglycemia causes temperature instability, hypotonia, jitteriness, and seizures. Premature, postmature, small-for-gestational-age, and large-for-gestational-age neonates are susceptible to this disorder.