G&D 1

Growth and Development Overview

Prenatal Period

  • Germinal Stage (Conception to 10-14 days):

    • Rapid cell division occurs during this stage after sperm and egg unite and implant in the uterus.

  • Embryonic Stage (2nd to 8th week):

    • Involves rapid cellular differentiation.

    • The embryo is highly vulnerable to noxious stimuli, including drugs and environmental toxins.

  • Fetal Stage (8th week to birth):

    • Characterized by rapid growth and differentiation of organs.

Nursing Implications

  • Early Prenatal Care:

    • Focuses on stress reduction and dental care.

    • Includes a complete physical examination.

    • Nutrition:

    • Importance of Vitamin supplements.

    • Emphasis on a well-balanced diet.

    • WIC (Women, Infants, and Children) support is significant.

Safety Considerations

  • Vulnerability to potentially harmful substances:

    • Alcohol: Known teratogenic substance.

    • Drugs: Including over-the-counter, prescription, and illegal drugs.

Birth Process

Neonate

  • Neonate Stage:

    • Birth to 1 month:

    • The neonate must make adjustments to extrauterine life, which requires energy and adaptation.

Neonatal Physical Assessment

  • Conducted immediately after birth and scored by nurses or doctors to assess adaptation abilities.

  • Neonate Criteria:

    • Term Pregnancy: 37-40 weeks.

    • Height: 20 inches (range: 19-21 inches).

    • Weight: 7 lbs 8 oz (normal range: 5 lbs 14 oz to 9 lbs).

    • Head Circumference: 35 cm (normal range: 32-37 cm).

    • Heart Rate: 120-180 bpm.

    • Respiratory Rate: 40-60 breaths/min.

    • Fontanels: Open anterior and posterior.

Neonatal Behaviors

  • Sleep: Average of 20 hours out of 24 in the first few days.

  • Feeding:

    • Breastfed every 2-3 hours.

    • Formula-fed every 3-4 hours.

  • Urination: 6-8 times a day.

  • Stools:

    • Transition from meconium to transitional to yellow seedy stools.

Psychosocial Development

  • Bonding and Attachment:

    • Establishing connections to caregivers is crucial.

  • Feeding Methods:

    • Involves both bottle feeding and breastfeeding.

  • Crying and Sleeping:

    • Crying is a primary means of communication; sleeping patterns are developing.

Advantages of Breastfeeding

  • Health Goals: Increase exclusive breastfeeding rates to 42.4% as per Healthy People 2030 initiative.

  • Maternal Benefits:

    • Aids uterine involution and offers convenience at a low cost.

    • Lessens the risk of breast cancer.

  • Infant Benefits:

    • Lactation provides tailored nutrition and strengthens bonding.

    • Offers protection against diseases:

    • Provides passive immunities.

    • Reduces gastrointestinal infections and lower risk of allergies.

Cognitive Development

Piaget's Sensory-Motor Development

  • Innate Behaviors: Infants display bundles of reflexes.

  • Vision Development:

    • Infants can see approximately 8 to 10 inches away and prefer infant faces and contrasting shapes.

  • Crying: Serves as a communication tool.

Health Risks in Neonates

  • Critical Areas:

    • Airway patency and thermoregulation are vital.

    • Prevention of infection is necessary.

    • Hearing screening should be performed.

Infancy (1 to 12 months)

Biophysical Changes

  • Infants Experience rapid growth:

    • Born helpless and weak, infants grow faster in this period than any other lifetime stage.

    • Physical Exams: Conducted every 2-3 months.

    • Weight:

    • Infants typically double their birth weight by 6 months and triple it by their first birthday.

    • Height:

    • Growth includes an increase of 1 inch in the first 6 months and ½ inch in the subsequent 6 months.

    • Brain Development:

    • At birth, brain weight is approximately 25% of adult size, increasing to 60% by the age of 1 year.

Sensory Development

  • Vision: Becomes more acute with depth perception developing by 12 months.

  • Hearing: More refined abilities develop over time.

  • Taste and Touch: Preference for sweet flavors emerges and the sense of touch becomes more defined.

Gross Motor Skills

  • Development Pathway:

    • Follows cephalocaudal and proximodistal development patterns.

    • Key milestones:

    • 3 months: Holds head up.

    • 6 months: Rolls completely over.

    • 9 months: Sits independently, begins crawling.

    • 12 months: Pulls upright, cruises along furniture.

    • 15 months: Walks independently.

Gross Motor Development Timeline

  • Age and Milestone Progression:

    • Birth: Fetal posture.

    • 1 month: Lifts head.

    • 2 months: Lifts chest.

    • 3 months: Reaches and misses.

    • 4 months: Sits with support.

    • 5 months: Sits on lap and grasps objects.

    • 6 months: Sits in a high chair and grasps dangling objects.

    • 7 months: Sits alone.

    • 8 months: Stands with help.

    • 9 months: Stands while holding furniture.

    • 10 months: Creeps on hands and knees.

    • 12 months: Pulls to stand.

    • 13 months: Climbs stairs with assistance.

    • 14 months: Stands alone.

Psychosocial Development

Cognitive and Language Development

  • Prelinguistic Communication: No words are used; crying is dominant.

  • At 2 months, infants learn to use their voice to attract attention.

  • The primary goal during infancy is satisfying needs and forming bonds to ensure survival.

Freud's Theoretical Perspective

  • Oral Stage:

    • Mouth is the chief source of pleasure, as babies engage in activities involving sucking, biting, and chewing.

    • Consistent fulfillment of oral needs leads to successful progression to the next developmental stage.

  • Consequences of Oral Deprivation:

    • Failure to adequately meet oral needs can result in an 'oral personality' characterized by compulsive chewing or eating behaviors.

Erikson's Theory of Development

  • Trust versus Mistrust:

    • Infants learn trust when care needs are met consistently by loving caregivers.

    • Disruption in care can lead to mistrust and hinder social development.

Piaget's Cognitive Development Stages

  • Sensory Motor Development:

    • Reflexes dominate (sucking and rooting); cognitive processes begin gradual advancement.

    • Object Permanence:

    • Developmental Timeline:

      • 1-4 months: Infants stare at the last known location of an object.

      • 4-8 months: They do not understand to search for hidden objects.

      • 8-12 months: Understanding that hidden objects still exist.

      • Separation Anxiety: Begins to develop at this stage.

Kohlberg's Moral Development

  • Stage 1: Egocentric:

    • Infants lack moral development and understanding of right and wrong.

    • Moral reasoning involves the fear of punishment; cannot empathize with others' perspectives.

Health Promotion Strategies

Risks and Preventive Measures

  • Health Risks:

    • Sudden Infant Death Syndrome (SIDS), congenital anomalies, injuries, pneumonia, and