Peds Exam 1 Flashcards
Nrml newborn HR
120 to 160 bpm
85 to 90 bpm may be nrml if sleeping
Nrml newborn RR
40-60 breaths/min
What should you be concerned about if newborn presents with central cyanosis that doesn’t correct with 100% O2?
respiratory or cardiac disease
37 0/7 weeks to 38 6/7 weeks gestation
Early Term
32 0/7 weeks to 36 6/7 weeks gestation
Late Pre-term
28 0/7 weeks to 31 6/7 weeks gestation
Very Premature
28 weeks or less
Extremely Premature
Gestational Age
Elapsed time between LMP and delivery
Chronological (post-natal) Age
Time since birth
Post-menstrual Age
Gestational plus Chronological age
Corrected Age
Chronological age minus number of weeks premature
Large for gestational age
> 90th percentile for GA
Small for gestational age
<10th percentile for GA
Extremely low birth weight
< 1000 gm
Very low birth weight
< 1500 gm
Low birth weigh
<2500 gm
What is meconium and when does it normally occur?
Dark color, sticky consistency, odorless stool
At least once in first 48 hrs of life then transitional stools by day 4
What should you consider if meconium passage is delayed?
Hirschprung disease
Imperforate anus or other obstruction
Meconium Ileus = Cystic Fibrosis until proven otherwise
Why do all newborns have hyperbilirubinemia at birth?
↑ production, ↓ conc bili binging proteins, ↓ conj, ↓clearance
What is breast feeding jaundice?
Onset 2 – 4 days of life Related to poor enteral
intake
Self-limiting, improves as milk supply ↑
What is breast milk jaundice?
Onset 4-7 days, peaks 1-2 weeks
Due to substances in breastmilk that inhibit glucuronyl transferase
What are the MC d/o found on newborn screening?
Hearing Loss
Congenital hypothyroidsim
Hemoglobinopathies (sickle cell disease)
Cystic Fibrosis
Medium chain acyl-CoA dehydrogenase deficiency
What indicated a positive screen for CCHD?
O2 sat <90% in either extremity on any screen
O2 sat 90-94% in both extremities on three scans
Difference >3% between extremities on three scans
What can excessive tiredness, fatigue, or sweating during feeding suggest?
heart disease or anemia
What cardiopulmonary changes occur in the infant in the immediate post-natal period?
Transition perios is first 1-4 hours of life
↓ pulm vascular resistance
↑blood flow to lungs
Lung expansion with clearance of alveolar fluid
Closure of ductus arteriosus
What is normal infant core temp?
36.5° to 37.5° C (97.7°-99.5° F)
What is the normal physiological response to cold stress?
vasoconstriction
↑ musc flexion
metabolism of brown fat and glucose
Why is newborn with diabetic mother at risk for hypoglycemia?
the fetus also has hyperglycemia because feeding through the mother so insulin is high in response and when baby is born the insulin remains high before it can compensate for the loss from the mother
Sx hypoglycemia
lethargy, poor feeding, tachypnea, jitteriness, hypothermia
How often should you screen at risk newborn for hypoglycemia?
draw glucose within 30 min-1 hr of life (after 1st feed) and measure q6h x 24-48 h
What are the 4 main components of the Apgar score?
HR, breathing, grimace, activity (muscle tone), appearance (skin color)
What is administered to all newborns in the delivery room and why?
IM vit K to prevent vit K deficient bleeding (all newborns are deficient)
Erythromycin ophthalmic to to prevent gonococcal & chlamydia opthalmia neonatrum
What are the components of newborn screening?
Heel stick- 24-48 h after birth (after 1st feed)
Pulse ox- R hand (pre-ductal) and foot (post-ductal) to screen for critical congenitall heart dz (CCHD)
Hearing screen- via ABR or OAE → high risk → eval by 3 mo of age
RF for birth inj
Macrosomia (>4000 gm) (large infant has more traumatic birth)
Maternal
Abnormal presentation (breech)
Operative vaginal delivery with forceps for vacuum
Small maternal stature, maternal pelvic anomalies
Precipitous delivery
Edema above periosteum after prolonged fetal head engagement
Soft swelling extending across suture lines
Caput Succedaneum
Time course for Caput Succedaneum
Largest at birth
Benign and resolves on own within a few days
Collection of blood under periosteum
Firm then fluctuant non-discolored swelling
Does not cross suture
Cephalohematom
Time course of Cephalohematom
Can grow for 12-24 hrs then resolves over 2-3 weeks
Bleed below aponeurosis and above periosteum
Diffuse fluctuant fluid waves, unconfined
Can extend from orbital ridges to upper neck
Subgaleal hemorrhage
Subgaleal hemorrhage time course
Can increase after brith and resolves in 203 weeks but must be monitored because associated with high mortality
List the criteria for newborn hospital discharge
Stable vital signs at least 12 hours, including temp
Regular urine output, at least one spontaneous stool
At least two successful feedings
No excessive circumcision bleeding for ≥ 2 hours
Appropriate screening for hyperbilirubinemia
Appropriate evaluation and monitoring for sepsis risk
Hepatitis B vaccine, review of maternal vaccinations
Newborn screening (Blood spot, hearing, CCHD)
Discharge Planning (cont.)
Appropriate car seat available
(rear facing until 2 yo)
Follow-up care identified
Maternal and Family Education provided
Risk factors for safe home environment assessed
What can cause ↑ production of bilirubin in newborns?
hemolysis, polycythemia, cephalohematoma
What can cause ↓ clearance of bilirubin in newborns?
Crigler-Nijjar, Gilbert, hypothyroidism, galactosemia, intestinal obs
Tx for hyperbilirubinemia
freq feedings and breast feeding support
phototherapy, hydration, IVIG, exchange transfusion
What is the leading preventable cause of birth defects and developmental disabilities?
Prenatal exposure to alcohol
Effects of 1st trimester alcohol exposure
Facial anomalies
Major structural anomalies
Brain abnormalities
Effects of 2nd trimester alcohol exposure
spontaneous abortion
At every time point
Effects of 3rd trimester alcohol exposure
Affects weight, length, brain growth
Define stretor
snoring sound, mid pitched, heard loudest near mouth due to normal infant nasopharyngeal obstruction
Effect of maternal DM on newborn
Macrosomia, prematurity, hypoglycemia-hyperinsulinemia, resp distress, congenital abnormalities
Effect of maternal drug addiction on newborn
hyperirritability, high pitched crying, trmors, GI disturbances, hypertonia, feeding difficulties, autonomic dysfn, seizures, SGA, resp distress
Effect of maternal alcohol use on newborn
↓ brain vol and fn, impulse control, memory and learning, motor coord, ability to work toward goals, facial dysmorphia, cardiac, skeletal, renal, ocular and auditory abnormalities
What are the “terrible T’s” of cyanotic lesions?
Tetralogy of Fallot Transposition of the great vessels Total Anomalous Pulm Venous Return (TAPVR) Tricuspid Atresia Truncus Arteriosus
- Describe primary care management factors in children with CHD
CHD children at risk for developmental delay → neurodevel screening, immunizations, reg cardio f/u
What are the congenitally acquired infections that may cause significant morbidity and mortality in neonates?
Toxoplasmosis
Other (Syphilis, Hepatitis B, Varicella Zoster, HIV, Parvovirus B19)
Rubella
Cytomegalovirus
Herpes Simplex Virus
What is the MC cause of neonatal sepsis?
Group B streptococcus (aspirate birth contents)
What is the most common chromosomal abnormality affecting children?
Trisomy 21—Down Syndrome
What BMI is considered overweight?
obese?
> 85th – 95th percentile
> 95th percentile
Shifts across how many percentile lines may indicate abnormality?
≥ 2
shifts across multiple percentiles after age 3 to 4 years uncommon
When do babies shift towards genetic potential for growth?
between 6-18 months
What is constitutional delay of growth and adolescence?
Slowing of growth, may start to cross percentiles as puberty is delayed
Enter puberty in late teens/early 20’s and reach expected MPH
What growth curve guidelines should you use for formula fed infants?
breast fed?
formula-
CDC
breast fed- WHO
When should term infants triple birth weight?
by 1 yr
By what age should height double?
3-4 yrs
What is normal head circumference for full term infant?
35 cm
How much do infants gain every day in the first 3 months?
~20-30 g/da