Lecture 2 Health promotion in infancy and early childhood Flashcards
Growth during infancy
- Weight: Increases by 1.5 lb. per month; doubles by 6 months of age.
- Length: Increases by 1 inch per month.
- Head circumference: Increases by 0.5 inch per month.
- By the end of the first year: Weight has approx. tripled; height has increased by approx. 45%; head circumference has increased by approx. 33%.
- Example: 3 kg newborn - will weigh 6 kg at 6 months (double) and 9 kg at 1 year (triple).
Foramen ovale
Fetal shunt in which blood passes across the ventricular septum from the right atrium to the left atrium.
First shunt to close (functionally), due to cord clamping and increased systemic vascular resistance. Closes structurally during the first months or years.
Ductus arteriosus
Fetal shunt that connects the pulmonary artery to the aorta - bypasses the lungs.
Closes in response to increased oxygen and decreased circulating prostaglandins.
Ductus venosus
Fetal shunt that allows blood to bypass the liver to the inferior vena cava.
Turns into a ligament (ligamentum venosum) after obliteration.
Teeth begin to erupt around the age of _
6 months.
Solid food and cow’s milk - ages
Solid food can be introduced beginning at 6 months; cow’s milk should be introduced no earlier than 1 year.
Introduction of new foods
Introduce one solid food at a time, and new food at 4-7 day intervals to better identify allergies.
Language during infancy
- 3-9 months: Single syllables, nonspecific babbling (may say “mama” but this does not represent “mother” yet).
- End of first year: 1-5 words, symbolic representation (“mama” represents “mother”).
Motor skills - 2-3 months
Gross - bear some weight (improved strength).
Fine - smiles responsively at 2 months, recognizes faces at 3 months.
Risks - can roll off flat surfaces.
Motor skills - 5-6 months
Gross - pulls to sit, loss of head lag, rolls from abdomen to back (5 months), back to abdomen (6 months).
Fine - reaches, some grasping.
Risks - can aspirate small objects.
Motor skills - 6-9 months
Gross - sits erect without support, pulls to stand, stands while holding on.
Fine - palmar grasp.
Risks - can fall out of crib/mattress.
Motor skills - 9-12 months
Gross - moves from prone to sitting position, “cruising” - travels while hanging on to furniture.
Fine - pincer grasp.
Risks - higher injury potential once mobile - set limits.
Vision/hearing - at birth
20/100-20/400 vision; responds to bell.
Vision/hearing - 1 year
20/40-20/60 vision; active listening.
Solitary play
Infants - play alone and involve one sense at a time - sensorimotor stage.