T1 - Developmental Milestones (Josh) Flashcards
Body flexed
C shaped
arm and leg buds present
head at right angles to body
4 wks
body fairly well formed
nose flat, eyes far apart
digits well formed
head elevating
tail almost disappeared
eyes, ears, nose, and mouth recognizable
8 wks
nails appearing
resembles a human
head erect but disproportionately large
skin pink
delicate
12 wks
face looks human
eyes, ears, and nose approach typical appearance
arm/leg ratio proportionate
scalp hair appears
16 wks
vermix casiosa appears
lanuga appears
legs lengthen considerably
sebaceous glands appear
20 wks
body lean but fairly well proportioned
skin red and wrinkled
vernix caseosa present
sweat glands forming
24 wks
What is the vernix caseosa?
(varnish, cheeselike, latin) also known asvernix, is the waxy or cheese-like white substance found coating the skin of newborn human babies.
Nails appear
body less wrinkled and red
lean body
28 wks
subQ fat begins to collect
skin pink and smooth
assumes birth position
30-31 wks
By — week, blood cells and bv’s begin to form and heart is beating
3rd wk
Feral heart beat is heard by Doppler about —
10-12 wks
When is sex apparent?
12 wks
When is amount of AF adequate to perform an amniocentesis?
16 wks
When does the L/S ration become ideal for lung development?
L/S 2:1 at about 35 wks
When is surfactant formed on alveolar surfaces?
28 wks
*** if born at this time, they can breathe
