5.3 The Newborn and Assessing the Neonate

The Apgar assessment is conducted between one minute and five minutes after birth. This is a very quick way to assess the newborn’s overall condition. Five measures are assessed: Heart rate, respiration, muscle tone (assessed by touching the baby’s palm), reflex response (the Babinski reflex is tested), and color. A score of 0 to 2 is given on each feature examined. An Apgar of 5 or less is cause for concern. The second Apgar should indicate improvement with a higher score (see image below).

The APGAR is a common way of assessing the newborn immediately following birth.

Another way to assess the condition of the newborn is the Neonatal Behavioral Assessment Scale (NBAS). The baby’s motor development, muscle tone, and stress response are assessed. This tool has been used around the world to further assess newborns, especially those with low Apgar scores, and to make comparisons of infants in different cultures (Brazelton & Nugent, 1995).

5.4 Problems of the Newborn

Anoxia

Anoxia is a temporary lack of oxygen to the brain. Difficulty during delivery may lead to anoxia which can result in brain damage or in severe cases, death. Babies who suffer both low birth weight and anoxia are more likely to suffer learning disabilities later in life as well.

Low-birth-weight

We previously discussed several teratogens associated with low birth weight such as alcohol, tobacco, and so on. A child is considered low birth weight if he or she weighs less than 5 pounds 8 ounces (2500 grams). About 8.2 percent of babies born in the United States are of low birth weight (Center for Disease Control, 2015a). A low-birth-weight baby has difficulty maintaining adequate body temperature because it lacks the fat that would otherwise provide insulation. Such babies are also at more risk for infection, and 67 percent of these babies are also preterm which can increase their risk for respiratory infection. Very low birth weight babies (2 pounds or less) have an increased risk of developing cerebral palsy.

Additionally, Pettersson et al. (2019) analyzed fetal growth and found that reduced birth weight was correlated with a small, but significant increase in several psychiatric disorders in adulthood. These include attention-deficit/hyperactivity disorder, autism, depression, and obsessive-compulsive disorder. Pettersson et al. theorized that “reduced fetal growth compromises brain development during a critical period, which in turn slightly increases the risk not only for neurodevelopmental disorders but also for virtually all mental health conditions” (p. 540). An insufficient supply of oxygen and nutrients for the developing fetus is proposed as factors that increase the risk for neurodevelopmental disorders.

Preterm

A newborn might also have a low birth weight if it is born at less than 37 weeks gestation, which qualifies it as a preterm baby (CDC, 2015). Early birth can be triggered by anything that disrupts the mother’s system. For instance, vaginal infections can lead to premature birth because such infection causes the mother to release anti-inflammatory chemicals which, in turn, can trigger contractions. Smoking and the use of other teratogens can lead to preterm birth. The earlier a woman quits smoking, the lower the chance that the baby will be born preterm (Someji & Beltrán-Sánchez, 2019). A significant consequence of preterm birth includes respiratory distress syndrome, which is characterized by weak and irregular breathing (United States National Library of Medicine, 2015b).

Saybie (name given to her by the hospital), a baby girl born in San Diego, California is now considered the world’s smallest baby ever to survive (Chiu, 2019). She was born in December 2018 at 23 weeks and 3 days weighing only 8.6 ounces (same size as an apple). After five months in the hospital, Saybie went home in May 2019 weighing 5 pounds.

Small-for-date Infants

Infants that have birth weights that are below expectation based on their gestational age are referred to as small-for-date. These infants may be full-term or preterm, but still weigh less than 90% of all babies of the same gestational age. This is a very serious situation for newborns as their growth is adversely affected. Regev et al. (2003) found that small-for-date infants died at rates more than four times higher than other infants. Remember that many causes of low birth weight and preterm births are preventable with proper prenatal care.

5.5 Newborn Reflexes

Newborns are equipped with several reflexes which are involuntary movements in response to stimulation (see table below). Some of the more common reflexes, such as the sucking reflex and rooting reflex, are important to feeding. The grasping and stepping reflexes are eventually replaced by more voluntary behaviors. Within the first few months of life, these reflexes disappear, while other reflexes, such as the eye-blink, swallowing, sneezing, gagging, and withdrawal reflexes stay with us as they continue to serve important functions. Reflexes offer pediatricians insight into the maturation and health of the nervous system. In preterm infants and those with neurological impairments, some of these reflexes may be absent at birth. Once present, they may persist longer than in a neurologically healthy infant (El-Dib et al., 2012). Reflexes that persist longer than they should can impede normal development (Berne, 2006).

Common Infant Reflexes

Reflex	Description	Image
Sucking	Suck on anything that touches the lips.
Rooting	Turning the head when the cheek is touched.
Grasp	Fingers automatically grip anything that touches the palm of the hand.
Babinski	The toes will fan out and curl when the sole of the foot is stroked from heel to toe.
Moro	A sudden noise or loss of support to the head will cause infants to spread out their arms and legs and then quickly contract the limbs inward.
Tonic Neck	When lying on the back with the head to one side infants will extend the arm and leg on that side while flexing the limbs on the opposite side (looks like a fencer pose).
Stepping	Legs move in a stepping-like motion when feet touch a smooth surface.

5.6 Infant Growth and Nutrition

Good nutrition in a supportive environment is vital for an infant’s healthy growth and development. Remember, from birth to 1 year, infants triple their weight and increase their height by half, and this growth requires good nutrition. For the first 6 months, babies are fed breast milk or formula. Starting good nutrition practices early can help children develop healthy dietary patterns. Infants need to receive nutrients to fuel their rapid physical growth. Malnutrition during infancy can result in not only physical but also cognitive and social consequences. Without proper nutrition, infants cannot reach their physical potential.

Benefits of Breastfeeding

Breast milk is considered the ideal diet for newborns due to the nutritional makeup of the colostrum and subsequent breast milk production. Colostrum, the milk produced during pregnancy and just after birth, has been described as “liquid gold.” Colostrum is packed with nutrients and other important substances that help the infant build up their immune system. Most babies will get all the nutrition they need through colostrum during the first few days of life (CDC, 2018).[1] Breast milk changes by the third to fifth day after birth, becoming much thinner but containing just the right amount of fat, sugar, water, and proteins to support overall physical and neurological development. It provides a source of iron more easily absorbed in the body than the iron found in dietary supplements, it provides resistance against many diseases, it is more easily digested by infants than formula, and it helps babies make a transition to solid foods more easily than if bottle-fed.

The reason infants need such a high fat content is the process of myelination which requires fat to insulate the neurons. There has been some research, including meta-analyses, to show that breastfeeding is connected to advantages with cognitive development (Anderson et al. 1999)[2]. Low birth-weight infants had greater benefits from breastfeeding than did normal-weight infants in a meta-analysis of twenty controlled studies examining the overall impact of breastfeeding (Anderson et al., 1999). This meta-analysis showed that breastfeeding may provide nutrients required for rapid development of the immature brain and be connected to more rapid or better development of neurologic function. The studies also showed that a longer duration of breastfeeding was accompanied by greater differences in cognitive development between breastfed and formula-fed children. Whereas normal-weight infants showed a 2.66-point difference, low-birth-weight infants showed a 5.18-point difference in IQ compared with weight-matched, formula-fed infants (Anderson et al, 1999). These studies suggest that nutrients present in breast milk may have a significant effect on neurologic development in both premature and full-term infants.

For most babies, breast milk is also easier to digest than formula. Formula-fed infants experience more diarrhea and upset stomachs. The absence of antibodies in the formula often results in a higher rate of ear infections and respiratory infections. Children who are breastfed have lower rates of childhood leukemia, asthma, obesity, type 1 and 2 diabetes, and a lower risk of SIDS. For all of these reasons, it is recommended that mothers breastfeed their infants until at least 6 months of age and that breast milk be used in the diet throughout the first year (U.S. Department of Health and Human Services, 2004a in Berk, 2007).

Several recent studies have reported that it is not just babies that benefit from breastfeeding. Breastfeeding stimulates contractions in the uterus to help it regain its normal size, and women who breastfeed are more likely to space their pregnancies farther apart. Mothers who breastfeed are at lower risk of developing breast cancer, especially among higher-risk racial and ethnic groups (Islami et al., 2015).[3] Other studies suggest that women who breastfeed have lower rates of ovarian cancer (Titus-Ernstoff et al., 2010)[4], and reduced risk for developing Type 2 diabetes (Gunderson, et al., 2015)[5], and rheumatoid arthritis (Karlson et al., 2004).[6]

As of 2022, the recommendation from the American Academy of Pediatrics is that breastfeeding is the only source of nutrition for an infant for the first six months of life and that breastfeeding should be supported for two years or beyond (Meek & Noble, 2022) Most mothers who breastfeed in the United States stop breastfeeding at about 6-8 weeks, often to return to work outside the home (United States Department of Health and Human Services (USDHHS), 2011) [7]. Mothers can certainly continue to provide breast milk to their babies by expressing and freezing the milk to be bottle fed at a later time or by being available to their infants at feeding time, but some mothers find that after the initial encouragement they receive in the hospital to breastfeed, the outside world is less supportive of such efforts. Some workplaces support breastfeeding mothers by providing flexible schedules and welcoming infants, but many do not. And the public support of breastfeeding is sometimes lacking.

The Providing Urgent Maternal Protections (PUMP) for Nursing Mothers Act was signed into law in December 2022, requiring employers to provide break time and a private place to express breastmilk and expanding existing protections to an additional nine million employees (U.S. Department of Labor, 2023). It has yet to be determined the extent to which these protections improve breastfeeding rates in the United States. Women in Canada are more likely to breastfeed than those in the United States, and the Canadian health recommendation is for breastfeeding to continue until 2 years of age. Facilities in public places in Canada such as malls, ferries, and workplaces provide more support and comfort for the breastfeeding mother and child than found in the United States.

In addition to the nutritional and health benefits of breastfeeding, breast milk is free! Anyone who has priced formula recently can appreciate this added incentive to breastfeeding. Prices for a month’s worth of formula can easily range from $130-$200. Prices for a year’s worth of formula and feeding supplies can cost well over $1,500 (USDHHS, 2011). One reason for high formula costs is a low supply of the product combined with high consumer demand. Supply chain issues decreased the availability of infant formula leading to a severe, acute shortage in May 2022 (Abrams & Duggan, 2022) that subsequently increased the frequency of unsafe infant feeding practices among parents desperate to feed their infants (Cernioglo & Smilowitz, 2023).

When Breastfeeding Doesn’t Work

There are occasions when mothers may be unable to breastfeed babies, often for a variety of health, social, and emotional reasons. For example, breastfeeding generally does not work:

• when the baby is adopted or born via a surrogate who is unavailable to breastfeed
• when the biological mother has a transmissible disease such as tuberculosis or HIV
• when the mother is addicted to drugs or taking any medication that may be harmful to the baby (including some types of birth control)
• when the infant was born to (or adopted by) a family with two fathers and the surrogate mother is not available to breastfeed
• when there are attachment issues between mother and baby
• when the mother or the baby is in the Intensive Care Unit (ICU) after the delivery process
• when the baby and mother are attached but the mother does not produce enough breast milk

One early argument given to promote the practice of breastfeeding (when health issues are not the case) is that it promotes bonding and healthy emotional development for infants. However, this does not seem to be a unique case. Breastfed and bottle-fed infants adjust equally well emotionally (Ferguson & Woodward, 1999). This is good news for mothers who may be unable to breastfeed for a variety of reasons and for fathers who might feel left out as a result.

Global Considerations and Malnutrition

In the 1960s, formula companies led campaigns in developing countries to encourage mothers to feed their babies on infant formula. Many mothers felt that formula would be superior to breast milk and began using formula. The use of formula can certainly be healthy under conditions in which there is adequate, clean water with which to mix the formula and adequate means to sanitize bottles and nipples. However, in many of these countries, such conditions were not available, and babies often were given diluted, contaminated formula which made them become sick with diarrhea and become dehydrated. These conditions continue today and now many hospitals prohibit the distribution of formula samples to new mothers in efforts to get them to rely on breastfeeding. Many of these mothers do not understand the benefits of breastfeeding and have to be encouraged and supported in order to promote this practice.

The World Health Organization (2018) recommends:

• initiation of breastfeeding within one hour of birth
• exclusive breastfeeding for the first six months of life
• introduction of solid foods at six months together with continued breastfeeding up to two years of age or beyond

Children in developing countries and countries experiencing the harsh conditions of war are at risk for two major types of malnutrition. Infantile marasmus refers to starvation due to a lack of calories and protein. Children who do not receive adequate nutrition lose fat and muscle until their bodies can no longer function. Babies who are breastfed are much less at risk of malnutrition than those who are bottle-fed. After weaning, children who have diets deficient in protein may experience kwashiorkor, or the “disease of the displaced child,” often occurring after another child has been born and taken over breastfeeding. This results in a loss of appetite and swelling of the abdomen as the body begins to break down the vital organs as a source of protein.