[Exam 3] Chapter 25 – Growth and Development of the Newborn and Infant Flashcards
How do you adjust age example for boy born at 28 weeks and is 6 months old??
Subtract 3 months from chronological age of 6 months so adjusted age is 3 months . Is expected to achieve developmental milestones of 3 month old instead of 6
Physical Growth - Weight: Average newborn weights how much at birth?
3400 kg (7.5 lb)
Physical Growth - Weight: Physical Growth - Weight: Average weight gain per day? And when do they regain their birth weight?
30 g,
Regain by 10-14 days
Physical Growth - Weight: When is weight doubled and tripled?
Doubled by 4 months
Tripled by 1 year old
Physical Growth - Height: How is length here?
Grows more quickly in first 6 months than next 6.
By 12 months, length increased by 50%
Physical Growth - Head Circumference: Growth by 1 year of age?
Average of 10 cm (4-inches)
Organ System Maturation - Neurologic System and State Of Consciousness: What six stages of consciousness will infant go through?
Deep Sleep Light Sleep Drowsiness Quiet Alert State Active Alert State Crying
Organ System Maturation - Neurologic System and State Of Consciousness: What occurs in deep sleep?
Sleeping with eyes closed and no movement
Organ System Maturation - Neurologic System and State Of Consciousness: What occurs in light sleep?
Sleeping with eyes closed; rapid eye movements and irregular movements may be noticed
Organ System Maturation - Neurologic System and State Of Consciousness: What occurs in drowsiness?
Eyes may close or be half-liddled; infant may be dozing
Organ System Maturation - Neurologic System and State Of Consciousness: What is the quiet alert state?
Infant’s eyes are wide open and body is calm
Organ System Maturation - Neurologic System and State Of Consciousness: What is the active alert stage?
Infants eyes open, body movements occur
Organ System Maturation - Neurologic System and State Of Consciousness: What is the crying stage?
Infant cries or screams and it is difficult to gain the infants attention
Organ System Maturation - Neurologic System and Brian Growth: Brain weight by 5 months?
Half of that of the adult brain
Organ System Maturation - Neurologic System and Brian Growth: Brian growth at 12 months?
Weights 2.5x that it did at birth
Organ System Maturation - Neurologic System and Brian Growth: How long doees the anterior fontanel remain open ?
Until 12-18 months of age. But may close as early as 9 months of age
Organ System Maturation - Neurologic System and Brian Growth: Myelination of spinal cord and nerves continues for how long?
First 2 years
Organ System Maturation - Neurologic System and Reflexes: Selected primitive reflexes present at birth include? And when do they disappear?
Moro, root, suck, asymmetric, tonic neck, plantar and palmar grasp, step, and Babinski
All disappear by 6 months except for Babinski at one year
Organ System Maturation - Neurologic System and Reflexes: What are protective reflexes?
Gross motor responses related to maintenance of equilibrium. Include righting and parachute reactions
Organ System Maturation - Neurologic System and Reflexes: What indicates a healthy neurologic system here?
Appropriate presence and disappearance of primitive reflexes, as well as development of protective reflexes.
Organ System Maturation - Respiratory System: Change in RR?
From 30-60 to 20-30 in 1 year old.
Organ System Maturation - Respiratory System: When changes occur here in comparasion to an adult?
Nasal passages narrower
Trachea and chest wall more compliant
Bronchi shorter
Larynx more funnel shapes
tongue is larger
Organ System Maturation - Respiratory System: When does this reach maturity level?
7 years of age
Organ System Maturation - Respiratory System: Lack of IgA causes what?
Lacks in mucosal lining of upper respiratory tract and also contributes to the frequent infections that occur in infancy
Organ System Maturation - Cardiovascular System: Change in heart size over first year?
Doubles in size
Organ System Maturation - Cardiovascular System: Pulse rate change in 1 year old?
From 110-160 to about 100 bpm.
Organ System Maturation - Cardiovascular System: How does blood pressure change from first year?
60/40 to 100/50
Organ System Maturation - GI System and Teeth: When does teeth growth occur?
May be born with one or more teeth or develops teeth in the first 28 days of life (termed neonatal teeth)
Organ System Maturation - GI System and Teeth: When does average tooth begin to emerge?
By ages of 6-8 months
Organ System Maturation - GI System and Teeth: First teeth to appear?
Lower central incisor, followed by upper central incisors. 4-8 teeth by 12 months
Organ System Maturation - GI System and Digestion: Changes in stomach size at 1 year?
0.5 oz to 1 oz, while at 1 year, can hold three meals and several snacks per day
Organ System Maturation - GI System and Digestion: What enzyme available in duodenum at birth?
Trypsin for protein digestion
Organ System Maturation - GI System and Digestion: What enzyme available in duodenum at around 5 months of age?
Amylase (needed for complex carbohydrate digestion)
Lipase (essential for appropriate fat digestion)
Organ System Maturation - GI System and Digestion: What liver functions remain immature during first year of life
Gluconeogenesis, vitamin storage, and protein metabolism
Organ System Maturation - GI System and Stools: Appearance of first stol?
Dark green to black and sticky
Organ System Maturation - GI System and Stools: Appearance of stool first few days of life for breast feed and formula?
Yellowish or tan
Formula : Peanut butter consistency
Breastfed: Looser in texture and appear seedy
Organ System Maturation - GI System and Stools: Changes in stools as as they grow older?
Stools decrease, and some infants do not have stools for several days
Organ System Maturation - GI System and Stools: What faces may infant make while pooping?
Often grunt, strain, or cry while attemping to have a bowel movement.
Organ System Maturation - GI System and Stools: When should infants contact primary provider about stools?
If they are red, white, or black, mucous like frequency
Foul-smelling or hard or if baby vomiting
Organ System Maturation- Urinary System: How much does ECF/ICF account for in infant?
35% and 40%. , meaning infant more susceptible to dehydration
Adults are 20/40%
Organ System Maturation- Urinary System: When do glomeruli reach full maturity?
By 2 years of age
Organ System Maturation- Integumentary System: In utero, infant covered with what?
Vernix caseosa, which protects developing skin.
Infant may be covered with in in early gestational age, and in folds in later age.
Organ System Maturation- Integumentary System: When does acrocyanosis disappear?
Decreases over the first few days of life
Organ System Maturation- Integumentary System: Why do infants erperience mottling of skin (pink and white marbled appearance)
Because of immature circulatory system.
Organ System Maturation- Hemoatopoietic System: What happens to fetal hemoglobin as infants grows?
Production of fetal hemoglobin near ceases and adult hemoglobin produced in steady amounts for first 6 months
Organ System Maturation- Hemoatopoietic System: What may infants experience at age 2-3 months?
Physiologic anemia, because fetal hemoglobin has shorter lifespan
Organ System Maturation- Hemoatopoietic System: What happens to iron?
Iron stores reclaimed when fetal hemoglobin dies. Sufficient for 6-9 months. Needed for first 15 years of life
Organ System Maturation- Hemoatopoietic System: When is maternal irons tores transferred to fetus?
Throughout the last trimester of pregnancy.
Organ System Maturation - Immunologic System: What do know about IgG?
Get from mothers. Offers immunity for 3-6 months then synthesize own IgG by 12 months.
Organ System Maturation - Immunologic System: What to know about IgM?
Produces in significant amounts after birth, reaching adulting levels by 9 months of age
Psychosocial Development: What developmental theory must crucial by 1 year?
Trust vs Mistrust
Psychosocial Development: How to get infant to trust someone?
By constantly meeting the infants needs
Psychosocial Development: What activites can promote Eriksons Trust vs Mistrust?
Caregivers respond by feeding, changing diapers, cleaning, and touching/holding . As they mature, they realize they are separate from their caregivers
Psychosocial Development: What to know about Piagets theories?
Infants learn about themselves and the world through their developing sensory and motor capibilites.
Psychosocial Development: What to know about Freud?
Pleasure is focused on oral activites: feeding and sucking
Cognitive Development: When does object permanence occur?
Between 4-7 months of age. If object hidden from infants sight, he or she will search for it.
Motor Skill Development - Gross Motor Skills: What does this refer to?
The use of large muscles (head control, rolling, sitting, and walking)
Motor Skill Development - Gross Motor Skills: What fashion do gross motor skills develop?
In a cephalocaudal fashion (from the head to the tail). They will learn to lift heat before learning to roll over.
Motor Skill Development - Gross Motor Skills: What skills do they learn as they get older?
Head contorl, ability to roll over, crawl, pull to stand and walk around 1 year old