Well Child Visits Flashcards
What is the difference between a screening and a diagnositic test?
Screening test: test designed for mass application to an asymptomatic population
Diagnostic Test: evaluates a diagnostic possibility in patients with significant history, symptoms, physical findings, and positive screening test
When should I newborn screening be done?
draw blood before discharge, after 24 hrs but no later than 7 days of age.
Vision Screening
Visual fixation occurs in the newborn and achieves accuracy by 6-9 weeks
Infants have the ability to follow an object by 3 months of age
Most term infants are far sighted, hyperopic at birth while premature infants are near sighted, myopic
Children reach 20/20 vision by 5 years
Ability to match colors is present by 2 years of age
Test visual acuity starting at age 3
Refer preschoolers with acuity worse than 20/40 in either eye
Refer children 5 years of age with 20/30 or if there is a difference between >1 line between the left and right eyes
Optic Nerve Hypoplasia
nonspecific finding due to damage of the visual system before it is fully developed
It is associated with
- maternal diabetes
- alcohol abuse
- maternal exposure to toxins
- hypothyroidism
- growth hormone deficiency
- neonatal hypoglycemia
- midline facial defect such as hypopituitarism
Retinoblastoma
leading malignant ocular tumor of childhood
associated with 13 q deletion
white pupil
(Congenitial cataracts also may present with a white pupil)

Strabismus
Amblyopia
Strabismus: misalignment of eyes
Amblyopia: loss of vision secondary to disuse or misuse of visual pathways during critical periods of visual development
Treatment: occlusive patch on the strong eye

Unilateral cover test
Cover and uncover each eye while child is looking straight ahead at an object 10 feet away.
Movement in the uncovered eye when the opposite is covered or uncovered suggests potential ocular misalignment or strabismus.

Corneal Abrasions
Pain, tearing, photophobia, decreased vision
Diagnose with fluorescein dye and slit lamp
Treatment: topical antibiotic

Hyphema
Presence of blood in the anterior chamber of the eye
after blunt or perforating injury
Eye pain
Immediate ophthalmologic consult
Treatment:
topical steroid and cycloplegia drops
protective eye shield
bed rest
head elevated to 30-45 degrees with close monitoring of intraocular pressure

Conductive hearing loss
disruption of mechanical components required for transduction of sound wave energy
generally caused by ear wax impaction and fluid in the middle ear
Hearing
Hearing loss is deficiency in hearing >90dB
Severe or profound hearing loss is always sensorineural and most often affects high frequencies
Deafness is inherited in 50% of all cases as autosomal recessive pattern
Prolonged exposure to loud noises is a common cause of high pitched hearing loss in adolescents
Hearing Screen
Screening is done with Evoked Otoacoustic emissions initially, then with auditory brainstem response systems if baby less than 6 months fails the initial hearing test
Auditory brainstem response testing measures how CN 8 responds to sound. Hearing loss of 35 dB or greater in the 500 Hz to 4,000 Hz range requires a referral.
Formal hearing screen for all children at 3, 4, 5 years of age and every 2 years after until adolescence
Jervell and Lange-Nielsen syndrome
Autosomal recessive disorder
prolonged Q-T syndrome and hearing loss
Causes of acquired hearing loss
number one cause of hearing loss is otitis media effusion
CMV and Toxoplasmosis account for majority of infectious causes of hearing loss
Rubella can also be a rare cause of deafness
10% of bacterial meningitis causes deafness
Prolonged exposure to loud noises is a common cause of high pitched hearing loss in adolescents
Acute otitis media
test with pneumatic otoscopy
patients must have symptoms
Treatment: No antibiotics at diagnosis in uncomplicated acute otitis media. Give antibiotics if there is an underlying chronic otitis media with effusion

Otitis media with effusion
most common between 6 months- 4 years
Fluid in the middle ear
Most resolve within 3 months

Tympanograms
measures volume of air in the external cavity of the ear
Maximum compliance: vertical peak on the y-axis: 1cm
Peak pressure: point of greatest mobility: x axis: 0

Obesity
Measure BMI in children > 2years of age
BMI= (weight in Kg)/ (height in meters) ^2
Overweight is BMI of 85-95th percentile
Obesity is BMI > 95%
Severe obesity is BMI > 35
No TV for children < 2years of age
Less than 2 hrs of TV for children >2 years of age
Treatment of obesity is family support and involvement
Blood Pressure Screening
Blood Pressure Measurements for children every year starting at 3 years of age
Normal Blood Pressure is BP less than 90th percentile for age and sex
High normal 90-95% for age and sex
Hypertension >95% for age and sex
Cholesterol and Lipid Screening
Only screen children and adolescents with a positive family history of cardiovascular disease or unknown family history
For patients 8 years or older with LDL >190 mg/dL, consider pharmacological intervention to get LDL below 130mg/dl
Metabolic Syndrome
Cluster of related diseases that increases cardiovascular and other health risk
- BMI>97%
- Triglycerides >110mg/dL
- HDL cholesterol: <40mg/dL
- Blood pressure: >90th percentile
- Glucose abnormalities: fasting glucose >110mg/dL, oral glucose tolerance test >140mg/dL
- Waist circumference: >90% percentile
Lead Screening
Universal blood lead screening for all children 1 year and 2 year olds
Consider Lead screening in children with inattentive and hyperactive behaviors
Normal values of lead levels < 10 ug/dL
Hypochromic microcytic anemia and basophilic stippling
See lead lines in chronic lead toxicity which are dense bands in the metaphysis from incorporation of lead in the bone, can find in wrists, other long bones, and axial skeleton
Lines disappear with growth

Iron Deficiency Screening
Is the #1 nutrition deficiency and the number one cause of anemia
Deficiency between 6 and 20 months, may affect development and cognitive abilities
Hematocrit/Hemoglobin screening at 1 year of age
Anemia is defined as hemoglobin that is 2 standard deviations below the mean for age and sex

Urinanalysis
Annual dipstick urine testing for leukocytes to look for Chlamydia and gonorrhea in sexually active males and females between 11-21 years old
Only perform urinalysis screen if there is a family history of inheritable renal disease