Week 1 Chapter 25 Flashcards
Developmental changes include:
Growth - Increase in physical size
Development- Sequential process of skill attainment
Maturation- Increased functionality of body systems or developmental skills
How do we measure physical growth?
Weight
Length
Head Circumference
Each plot on standardized growth chart
Also plot weight for length
What are the other measurements?
Chest at nipple line
Abdomen at the umbilicus
Growth percentiles measurements usually in approximately the same growth percentiles over time
True
When there are significant deviations from previous percentiles it may indicate ?
Further assessments needed
Children with down syndrome need a
Specialized chart.
Special populations
Average weight of infant is
3.4 kg
Doubles at 4 to 6 months
Triples by 12 months
Length average is about
50 cm (20 in) at birth
Increases by 50% by 12 months
Head circumference at birth is
35 cm (13.5in)
Increases by 10 cm by 12 months
How do we assess developmental milestones?
Ask the parents
Observe skill during assessment
Screening tools include:
ASQ
ITC
IDI
PEDS-DM
Name the systems immature at birth and somewhat mature over the first year
Neuro
Respiratory
CV
GI
Renal
Hematopoietic
Immunological
Integumentary
Neurologic system is fully myelinated at birth
False
Primitive Reflexes at birth
Step
Root
Suck
Moro
Asymmetric Tonic
Plantar
Palmar Grasp
Babinski
Step Reflex disappears at
4-8 weeks
Root disappears at
3 months
Suck Reflex disappears at
2-5 months
Moro and Asymmetric disappears at
4 months
Plantar Grasp disappears at
9 months
Palmar grasp disappears at
4-6 months
Babinski disappears at
12 months
A positive Babinski sign can indicate what?
Damage to corticospinal tract
As primitive reflexes disappear what appears ?
Protective reflexes appear
Protective reflexes are
Involuntary motor responses maintaining equilibrium and persist throughout life
Name Protective Reflexes
Neck Righting
Parachute (sideways)
Parachute ( forward)
Neck righting occurs at
4-6 months
Parachute Sideways occurs at
6 months
Parachute Forward occurs at
6-7 months
What is neck righting?
Baby will try to roll over to the side that the head is turned
What is parachute?
Extend arms to brace the fall either forward to protect the head or to the side
Differences between infant and adult respiratory
Nasal passages narrower
Larynx is funnel shaped
Trachea and chest wall is more compliantv
Bronchi and bronchioles are shorter and narrower
Respiratory fast and will decrease as child matures
The heart doubles in size the first year
TRUE
Pulse rate newborn is
120-140
Decreases to 100 at 1st year
Average blood pressure of newborn is
60/40
at 1st year increases to 100/50
Peripheral Capillaries are closer to the skin surface
Newborn and young infants more susceptible to heat loss
Thermoregulation becomes more effective over first few months
GI System
Tongue is large relative to oral cavity size
- Allows nipple to latch so infant can feed
Stomach capacity increases as infant grows
True
When do first teeth emerge?
Incisors at 6-8 months
Predictable pattern
Stool as newborn is
Meconium
Change of stools are based of what in the first year?
Intake ( Breast, Bottle, solid foods)
GU System compared to Adults
Frequent Urination
Low specific gravity
All renal functions reduced
More prone to dehydration
Poorer urine concentration daily
Acrocyanosis is
Blueness of hands and feet
Mottling
Pink and white marbled appearance due to immature circulatory systems , decreases over first few months
Integumentary system of newborns
Lanugo and vernix may be present
Acrocyanosis is normal and decreases over the first few days of life
Infant’s skin compared to adults is
Thinner
Peripheral capillaries are more superficial
Increased absorption of topical medications
High what is present at birth?
Hemoglobin
Decreases over the first 2-3 months
Stabilizes by 6-9 months w/ adequate iron intake
What IG is trasnmitted and protects the infant in first 3-6 months of life ?
IgG