NUR 380 OB Exam 1 Practice Questions and Correct Answers
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Course
NUR 380
Institution
NUR 380
Newborn normal HR 110-160
Newborn normal RR 30-60
Newborn normal BP 70-50/45-30 at birth or 90/50 day 10
Newborn normal temperature 36.5-37.5 (97.7-99.4)
Why does the baby become jaundice? -the baby uses iron stored in the liver to replace losses through normal RBC destruction after birth, whic...
NUR 380 OB Exam 1 Practice Questions
and Correct Answers
Newborn normal HR ✅110-160
Newborn normal RR ✅30-60
Newborn normal BP ✅70-50/45-30 at birth or 90/50 day 10
Newborn normal temperature ✅36.5-37.5 (97.7-99.4)
Why does the baby become jaundice? ✅-the baby uses iron stored in the liver to
replace losses through normal RBC destruction after birth, which therefore breaks down
HGB
-the byproduct of hgb is bilirubin which the liver normally excretes
-but the newborn liver is still immature
-this build up causes a build up of the bilirubin
Physiologic jaundice ✅jaundice-yellow coloring of newborn skin due to higher levels of
bilirubin in the circulatory system. Visible at 6-7 mg/dl.
-Appears AFTER the first 24 hours of life
Pathologic jaundice ✅jaundice-yellowing coloring of newborn skin that appears in first
24 hours of life
What are the 4 ways a newborn can loss heat? ✅convection, evaporation, radiation,
and conduction
How is heat lost through convection? ✅the loss of heat from the warm body surface to
the cooler air currents
Give examples of convection heat loss ✅air conditioning, air currents, oxygen by
mask, and removal from incubator for procedures
How is heat lost through evaporation? ✅the loss of heat incurred when water is
converted to a vapor
Give examples of evaporation heat loss ✅immediately after birth when the baby is wet
with amniotic fluid and during baths
How is heat lost through radiation? ✅the loss of heat when heat transfers from the
heated baby surface to cooler surfaces and objects not in direct contact with the baby
, Give examples of radiation heat loss? ✅the walls of the room or of an incubator
Placing cold objects onto the incubator or near the baby in the radiant warmer
How is heat lost through conduction ✅the loss of heat to a cooler surface by direct skin
contact
Give examples of conduction heat loss? ✅chilled hands, cool scales, cold examination
tables, and cold stethoscopes
What is meconium elimination? ✅-pass within 8 to 24 hrs of life, but always within
48hrs
-formed in utero from the amniotic fluid and its constituents, intestinal secretions, and
shed mucosal cells
-thick, tarry black or dark green appearance
What is transitional elimination? ✅-thin brown to green
-stool consisting in part meconium and part fecal material passed for the next day or two
Breastfed newborn elimination? ✅pale yellow, may be pasty green, seedy
-not that strong of odor
-more frequent than formula babies
Normal stomach compacity? ✅50-60ml
What Ig crosses the placenta? ✅igg
Where does the baby get iga from? ✅the colostrum, breast milk
NOT the placenta
What is iga? ✅-colostrum high in this
-provides some protection to unsecreted surfaces such as resp tract, GI tract, eyes
What is the foramen ovale and purpose? ✅it shunts the blood from the right atrium to
the left atrium, to the left ventricle, then aorta
This is to bypass the right ventricle and the pulmonary artery, therefore by passing the
lungs
-results in better oxygenated fetal blood directed to the myocardium and the brain
What is the ductus arteriosus and purpose? ✅this is a tubular artery between the
pulmonary artery and the descending aorta to bypass the lungs.
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