Pediatrics Flashcards
What is the asymmetric tonic neck reflex?
When does it begin? When does it cease?
when you turn a baby’s head to one side, the arm of the same side will extend and the other arm will flex (fencer’s)
You will notice this reflex from 2 wks to 6 months
What is the hand grasp reflex?
When does it begin? When does it cease?
When you put a finger in a baby’s hand, they will grasp it and the grasp will increase as the finger is withdrawn.
It begins at birth and stops at about 3 months
What is the head righting reflex?
When does it begin? When does it cease?
When you lift a baby by their arms, their head will lag behind.
1 month- lag
2-3 months- no lag
5-6 months- anticipation so the head is before shoulders
What is the Moro reflex?
When does it begin and when does it cease?
If you tilt the babies head back, they will abduct and extend their arms, and then flex and adduct.
Birth- 4 months
What is the parachute response?
When does it begin and when does it cease?
If you have the child “free fall” while being held, they will extend extremities symmetrically
9 months- life
What is the protective equilibrium response?
When does it begin and when does it cease?
If you have the baby sit up and then push it to one side, he will flex his trunk and extend an arm to catch himself.
This begins at 6 months (persists)
What is the rooting reflex?
if you stroke the corner of an infants mouth, the lower lip will lower on the same side and the tongue will go to the same side
When would a patient attend a pediatrician?
birth to 21
What are the six parts of a pediatric history?
- birth history
- nutrition
- growth assessment
- developmental history
- immunizations
- social history (adolescents)
What is included in a “birth history”?
4 pre, 4 post
Pre-natal Events -mother's health/illness - drug use -length of pregnancy - duration of labor/type of delivery Post-Natal events - birth weight - gestational age -condition at birth/ length of hopsitalization - complications
What nutritional discussions need to be had for children 0-2 years?
- method of feeding (breast v. formula)
- Reasons for change in feeding
- Amount of juice given (BAD. SUGAR WATER)
- intro of solids, vitamins
For a preschool age child, what is taken into account in the developmental history? (3)
- Milestones for age
- Behavior- personality, temperament, thumb-sucking
- Sleep pattern- nightmare/terrors, position, snoring
For a school age patient, what is considered in the developmental history? (6)
- grades/ gradelevel
- social attitude
- temperament
- habits (exercise, sports, TV, sex)
- Behavior (thumb-sucking, nail-biting)
- Sleep habits (amount, quality, bedtime)
What age children do you need to consider social history?
school-aged and adolescents
What is the “HEADSS” assessment?
the assessment used for adolescents social history: H- home life E- education/employment A- activity level D- drugs/drinking S- sexuality S- suicide/depression/self-image
When should a parent be asked to leave during the pediatric history?
before the social history of an adolescent
What is involved in the anticipatory guide topics?
- healthy habits
- nutrition
- safety/injury prevention
- sex
- family/peer relationships
- emotional and mental health
- oral health
- prevention of risky behavior
- school acheivement
Responses to stimuli proceed from ________ involving the entire body to ________ under cortical control by ____ months.
generalized reflexes to voluntary actions by 6 months
Development in a child occurs from _______ to ______ and ______ to _______.
cephalic to caudal and proximal to distal
The reported age of acheivement for a particular milestone occurs around the _____percentile
50%
If a child is showing a red flag for developmental milestones, who should you contact if they are under the age of 3?
Early Childhood Intervention
Development is affected by what four factors?
- physical
- disease-related
- social
- environmental
What are the “primitive reflexes” seen in children?
When should they subside?
- hand grasp
- moro
- rooting
- asymmetric tonic neck reflex
These should subside by 6 months
What are the postural reflexes?
- Head righting
- protective equilibrium response
- parachute reflex
What does the moro test allow you to test for?
What would be written in the chart of a baby that has this primitive reflex?
It allows you to test for nerve palsy.
If the baby is fine, you can write MAEW (moves all extremities well)
What does the hand grasp reflex test for?
Hypertonia if the baby still clenches the finger at 4 months
What does the head righting reflex test for?
If there is still head lag after 4 months = hypotonia
If there is head righting before 2-3 months = hypertonia
For gross motor development, what should the baby be able to do by 6, 9, 12, 24 months?
6- sit w/o support
9- pull to stand
12- walk
24- run, kick, throw overhand
What is meant by fine motor development?
Use of upper extremities to engage and manipulate the environment
When should a baby be able to feed itself?
When does it develop gross pincer and fine pincer skills?
24 months- feed
9- months gross pincer
12 months- fine pincer
What are the three major red flags of motor development?
4 months- no head control
9 months- sitting w/o assistance
18 months- walking
What are the two types of language?
- receptive language- hearing/seeing and understanding the meaning being conveyed
- expressive language- development of speech
What is the best predictor of intelligence?
language development
When should a baby be able to say one or two words?
a year
When should a baby be able to follow a one, two and three step command?
When should they be able to say a one, two and three word sentence?
one, two and three years
When should a child’s speech be intelligible to a stranger?
4yrs
What is cognitive development?
ability to learn and deal with new situations, problem-solving, language, memory, representational competence, symbolism
When do children develop object permenance? What is object permenance and what can it lead to?
around 9 months and this means that they understand that things still exist even when they are not in sight. This leads to separation anxiety
When does symbolic thinking develop in children?
Early childhood (1-5)
What kind of thinking is present in late childhood?
Concrete operational. Can’t really understand abstract thought
What type of thinking should be present in adolescence?
formal operational- abstract thought and reasoning
What is the first thing a doctor should do if the baby is thought to have slow language development?
have the hearing checked
What is social/emotional development?
The ability to understand themselves, bonding, attachment and trust
When do babies tend to develop stranger anxiety?
6 months
What are social/emotional red flags for 6, 9, 15, and 18 months?
6- lack of social smile
9- lack of reciprocal facial expression
15- lack of gesturing
18- lack of pretend play
When is a baby considered premature?
before 37 wks
What is Cushing’s syndrome?
hyperadrenocorticism where there is increased adrenal steroids so the child will have:
- increased adiposity
- hypertension
- diabetes mellitus
- osteoporosis
What is Prader-Willi?
a chromosomal disorder where the infant will exhibit:
- hypotonia
- round face/almond eyes
- strabismus (misaligned eyes)
- hypogonadism
- mental retardation
- short stature and obesity
What are the three main factors that influence fetal growth?
- maternal nutrition
- uterine size/restriction
- insulin and insulin-like GF
Surprisingly, NOT genetics. The mom can be tiny, but if she overeats, has diabetes, or has large uterine size, the baby will be BIG and then get smaller for age as life goes on
Describe what happens to the baby’s growth in the first 2 weeks after birth.
Initially the baby will lose 10% of its weight because of diaeresis of lung fluid.
By 2 wks the baby should be back to normal birth weight and then grows at a logarithmic rate
When would a physician be able to identify genetic stature correction?
Starting at 4-5 months and complete by 15 months
What are the four major influences on growth rate during post-natal/infancy?
- GH
- thyroid hormone
- insulin and insulin-like growth factor
- nutrition
When does logarithmic growth cease after infancy?
After this point, what is the typical weight increase per year?
Height?
Babies stop rapid growth phase between 2 and 3 years.
They increase weight at a rate of 2-3 kg/yr and increase in height 5cm/yr
(5lbs, 5cm)
What is the largest influence on growth during childhood (3-puberty)?
- nutrition
- GH
- thyroid horomone
Why do males tend to be taller/larger than females? (genetics aside)
Male puberty starts later, so they have extra years increasing 5cm/year before puberty.
What causes the rapid growth acceleration at puberty?
sex hormones
What is the typical age for females to hit puberty? males?
f-9 yrs
m- 11 yrs
When is a baby considered to be “postmature”?
after 42 wks
SGA infants have _____________________ which cause their small size.
Intrauterine Growth Restrictions (IUGR)
What are the two most common strategies for determining the gestational age of the baby?
- Maternal dates (when was the last period)
2. Ultrasound measurements to see specific features of the neonate
What are the cutoffs for SGA, AGA, and LGA?
SGA 90%
What is symmetric growth restriction and what are the common causes?
It is a proportional reduction in size/weight of all organs (including brain).
It is usually caused by INTRINSIC factors like:
malformations, chromosomal abnormalities, congenital infections
What is asymmetric growth restriction and what are the main causes?
When the brain retains normal size but the rest of the organs weight/size is restricted.
It is usually caused by compromised uteroplacental blood supply:
1. placental infarct
2. maternal hypertension, smoking
3. abnormal placentation
Which would occur earlier in gestation, symmetric growth restriction or asymmetric?
asymmetric
What are growth restricted babies at risk for in childhood?
- hypoglycemia
- hypothermia
- neurological defects (learning disabilities)
What are growth restricted babies at risk for in adulthood?
- diabetes
- obesity
- hypertesion
- coronary artery disease
What are the three most prominent areas of postnatal growth that are evaluated?
- length/height
- weight
- head circumference (FOC-frontal occipital)
How does one take a bone age?
x-ray an area of growth like the wrist and compare the epiphyseal center to a standard atlas to determine bone age
Growth velocity at puberty correlates closely to what?
bone age
What are the two ways that growth curves can be made?
- longitudinally- following an individuals growth for years
2. cross-sectional - comparing an individual to a standardized population
What are the three broad categories for short stature?
- Normal variant
- Primary short stature
- Secondary short stature
What are the two normal variants for short stature?
- genetic short stature (normal bone age)
2. constitutional delay (delayed bone age)
What are the properties of genetic short stature?
- Both parents are 1.5 to 2 SD below avg height
- Appropriate bone age
What is midparental height?
It is used to determine genetic probabilities of height.
Boys: ((father +(mom+5)/2) = height+/- 2
Girls subtract 5 from dad, avg with mom
What are the properties of constitutional delay? Who is typically affected?
- Boys are usually affected. Dad was usually a “late bloomer”
- Delayed bone age because they are still growing on the childhood growth rate of 5cm/yr until puberty starts
Both constitutional delay (normal) and secondary short stature have delayed bone age. How can you identify the difference?
Constitutional- the bone age progresses along the normal child growth rate of 5cm/yr
Secondary short stature- the growth of the bone delays significantly and falls of the childhood growth curve
Does primary short stature have normal or delayed bone age?
What are 4 examples of primary short stature?
Normal bone age
- Turner’s syndrome
- Down’s syndrome
- Noonan syndrome
- Achondroplasia
A patient comes in with short stature, defective ovarian development, web neck, lyphedema (puffy hands, feet) and abnormal elbows.
What disorder do they most likely have and what causes it?
Turner’s syndrome cause by chromosomal abnormality (45XO)
Why do males tend to be taller/larger than females? (genetics aside)
Male puberty starts later, so they have extra years increasing 5cm/year before puberty.
What causes the rapid growth acceleration at puberty?
sex hormones
What is the typical age for females to hit puberty? males?
f-9 yrs
m- 11 yrs
When is a baby considered to be “postmature”?
after 42 wks
SGA infants have _____________________ which cause their small size.
Intrauterine Growth Restrictions (IUGR)
What are the two most common strategies for determining the gestational age of the baby?
- Maternal dates (when was the last period)
2. Ultrasound measurements to see specific features of the neonate
What are the cutoffs for SGA, AGA, and LGA?
SGA 90%
What is symmetric growth restriction and what are the common causes?
It is a proportional reduction in size/weight of all organs (including brain).
It is usually caused by INTRINSIC factors like:
malformations, chromosomal abnormalities, congenital infections
What is asymmetric growth restriction and what are the main causes?
When the brain retains normal size but the rest of the organs weight/size is restricted.
It is usually caused by compromised uteroplacental blood supply:
1. placental infarct
2. maternal hypertension, smoking
3. abnormal placentation
Which would occur earlier in gestation, symmetric growth restriction or asymmetric?
asymmetric