A newborn who weighs less than 90% of newborns of the same gestational age at birth (below the 10th percentile) is considered small for gestational age.
SGA infants are small for their age because they have experienced intrauterine growth restriction (IUGR) or failed to grow at the expected rate in utero
SGA babies may be premature, full-term , or post-term
Growth restrictions can be classified as:
symmetric and asymmetric
The newborn is proportionately small, that is, its weight, length, and head size are similarly low or small.
Symmetric
Weight, length, or head size are not equally affected (for example, head size may continue to grow as expected, but weight or length may be lower than expected).
Asymmetric
In symmetric growth restriction, the cause probably occurred early in the pregnancy when it would affect all of the cells in the newborn's body
Asymmetric growth restriction probably results from problems that occur later in pregnancy because some tissues develop sooner than others and not all would be affected equally.
Many babies with SGA have a condition called intrauterine growth restriction (IUGR).
IUGR occurs when the fetus does not receive the necessary nutrients and oxygen needed for proper growth and development of organs and tissues.
Early-onset IUGR is often due to chromosomal abnormalities, maternal disease, or severe problems with the placenta.
Late-onset growth restriction (after 32 weeks) is usually related to other problems.
Signs and Symptoms of Small for Gestational Age
Birth Asphyxia
Meconium Aspiration
hypoglycemia
polycythemia
Treatment for Small for Gestational Age
no specific treatment for small-for gestational-age newborns
Growth hormone injections are sometimes given to certain SGA infants who remain small at 2 to 4 years of age.
how many bones are there in a newborn
300
Newborns with polycythemia are given ?
IV fluids
Newborns with hypoglycemia are treated with?
IV Glucose within 1 hr of birth
Nursing Interventions for Small for Gestational Age