Newborn Exam Flashcards
Components of a prenatal visit
- Courtesy of pediatric office without charge
- Chance to meet provider and see office/ask questions
- Chance to discuss feeding options and what happens in hospital after birth ie circumcision, immunizations, hearing screen, etc
3 components to a complete newborn history
- Maternal and paternal medical history
- Maternal past obstetric history
- Current antepartum and intrapartum history
Maternal and paternal history review
- Chronic medical issues in family
- Dietary habits
- Smoking or substance abuse
- Occupational history
- Social history - abuse or neglect
- Family illnesses and congenital anomalies
Maternal OB history
- Maternal age
- How many times pregnant
- How many times given birth
- Pregnancy outcomes
- Maternal blood type
Occuring right prior to delivery
Antepartum
Occuring during labor or delivery
Intrapartum
Time after delivery up to 6 weeks
Post partum
Review of antepartum and intrapartum hx
- Mom’s history: US, amnio, screening labs
- Tests that determine fetal well being: NST, dopplers of blood flow and BPP
- Mom prenatal issues ie gestational DM, UTIs, HTN, preeclampsia, preterm labor
- Significant issues like maternal fevers, difficult delivery, meconium stained fluid, vaginal vs C/s, forceps, resuscitation
Newborn hep B history
- Maternal hep B status: newborn given hep B vaccine within 1st 12 hrs
- Babies born to Hep B mom who do not get vaccine - 40% get hep b and 25% die from chronic liver disease
- HBsAG and HBeAg vertical transmission 90%
What does the baby need to receive after birth if the mom has HBsAg
- HBIG and Hep B vaccine ASAP after birth on opposite legs then Hep B again at 1 and 6 months
- If HBsAg not tested and mom high risk, give hep B vaccine ASAP and do labs. If HBsAg +, give HBIG up to 48 hours after
no hep c vaccine yet and no prevention for newborns :(
What should you do if mom is HIV +
- Babies receive antiretrovirals within 6-12 hours
- Breastfeeding not recommended
What is APGAR?
- Helps determine condition at birth
- Recorded at 1 and 5 minutes after birth
- Serial score shows progression/improvement
- Scale 1-10 and want at least a 7
What does APGAR stand for?
- Appearance
- Pulse
- Grimace
- Activity
- Respiration
What is a 0, 1, and 2 on Appearance APGAR score?
- 0: cyanotic
- 1: some cyanosis (extremities)
- 2: all pink
What is 0,1,2 on pulse APGAR score?
- 0: absent
- 1: <100
- 2: >100
What is 0,1,2 grimace on APGAR score?
- 0: none
- 1: “some” some flexion of extremities
- 2: cries in response
What is 0,1,2 on activity APGAR score?
0: none
1: some flexion of extremities
2: active movement
What is 0,1,2 on respirations APGAR score
0 none
1 some - slow irregular
2 spontaneous cry
Dubowitz/Ballard Exam and scoring
- Evaluates both physical characteristics and neurological characteristics of a newborn
- 6 physical and 6 neurological signs of maturity scored
- total score estimates gestational age
What are gestational age predictors?
- LMP
- Fetal US
- Physical and neurologic development
What is a square window?
Wrist flexion, term baby wrist can bend all the way down
What is scarf sign?
How far arm will extend across body
Ballard postnatal assessment
- Best performed at 30-42 hours of age
- Takes about 3-4 minutes to complete even on sick infants
- New ballard can test infants from 20-44 weeks
What can be accomplished with a prenatal visit?
Meet each other, see office
What vaccine is given to a newborn within 12 hours of birth?
Hep B
What is a perfect APGAR score?
10
What time after birth are APGARs done?
1 and 5 minutes
Is there a hepatitis C vaccine?
No
Unexplained death of a healthy baby younger than one, usually during sleep
SIDS
What causes SIDS?
True cause unknown
Thought to be related to area in brain that controls breathing and waking from sleep
Risk factors for SIDS
- Certain types of brain defects (brain area that controls breathing underdeveloped)
- Low birth weight
- Respiratory infections - many who die recently had a cold
- Sleeping on their stomach or side
- Sleeping on a soft surface (fluffy blanket, soft mattress, waterbed)
- Sharing a bed - with parents, siblings, or pets
- Overheating - being too warm can increase risk
- Males > females
- Age 2-4 months
- Race - more likely in black, native american, and alaskan native
- Family history of SIDS
- Second hand smoke
- Premature birth and low birth weight
How do we reduce the risk of SIDS?
- Place baby on back to sleep, never side or stomach
- Keep crib bare with firm/flat mattress
- No pillows, blankets, or stuffed animals
- Don’t overheat baby and never cover baby’s head
- Baby should sleep in parents room for first 6 months
- Breast feed if possible
- Do not rely on commercial devices that predict SIDS. They do not prevent
- Offer pacifier
- Get vaccines on time
What is normal cry of newborn? Abnormal?
Strong
* High pitched abnormal
* Low, hoarse cry sign of hypothyroidism
* Weak, poor cry can be sick infant
What is the average size of a full term baby in America?
- 7 lbs
- 19-20 inches long
- Head circumference of 13-14 inches
Any jaundice within the first —- is abnormal
24
Bluish discoloration of infants hands and feet
Acrocyanosis
Is acrocyanosis normal or abnormal? What causes this?
Normal
Vasomotor changes that result in peripheral vasoconstriction and is benign
central blueness is not normal
skin has mottled look like cobblestone street
cutis marmorata
When is cutis marmorata more common? What causes this?
Skin is cold
Superficial blood vessels dilate and give red color then constrict and give blue color, rewarming helps color return
Cutis marmorata is a common skin finding in what condition
Down syndrome
Waxy or cheesy like appearance after birth due to substance made of water, lipids, and proteins
Vernix Caseosa
What is vernix caseosa and what is its function?
Biofilm that covers fetus during last trimester
* Protects newborn skin and provides barrier against infection
* Delayed bathing common- delaying over 12 hours may help thermoregulation, hypoglycemia, and rates of breast feeding
Light, fine hair that covers the newborn baby
Lanugo
What is the relationship between lanugo and age of baby? What is purpose of lanugo?
- Younger baby, more hair
- Thought to insulate baby and help vernix stick, disappears over time
Are males or females more likely to have SIDS?
Males
Does a family history matter with SIDS?
Yes
Does a pacifier increase or decrease the risk of SIDS?
Decrease
Is jaundice normal in the first 24 hours?
NO
Is it okay for a baby to have blue hands and feet? What is this called
Yes, acrocyanosis
What is faint thin baby hair called on a preemie?
Lanugo
Skin rashes in newborns
- erythema toxicum
- Newborn acne
- Milia
- Sebaceous gland hyperplasia
Red base, papular - vesicular rash that is common in newborns
Erythema toxicum
Re
What causes erythema toxicum? How long does it last?
Eosinophils in tiny vesicles
Appears 2-5 days after birth and resolves in weeks
What is the appearance and cause of acne neonatorium (newborn acne)?
- Closed comedones - red and inflamed, looks like real acne on cheeks, forehead, and sometimes chest and back and resolves on own
- Thought to be due to maternal hormones
Tiny, white epidermal cysts filled with keratin
Milia
What are locations of milia?
Usually on face, resolves in 2-4 weeks
If in roof of mouth, called Epstein’s pearl
What is a hemangioma?
Very common vascular birth mark located on face, scalp, or thorax, but can be anywhere consisting of small, densely packed blood vessels
Cause unknown
What is the progression of hemangiomas?
- Start several months after birth
- Grow rapidly, then remain fixed, then start to resolve
- Most gone by age of 9
When would a hemangioma require immediate treatment?
- Visual, hearing, rectal, vaginal, nasal obstruction
- Airway obstruction
- Huge hemangiomas may cause cardiac decompensation
“Stork bite” light red macules found over nape of neck, upper eyelids, and between eyebrows
Nevus simplex
Dark red macules anywhere on body consisting of thick, dilated blood vessels
Nevus flammeus/port wine stain