The mother of a newborn asks the nurse what causes the baby to ...

[gonzo233]

The mother of a newborn asks the nurse what causes the baby to begin to breathe after delivery. What changes in the respiratory system stimulating respirations postnatally can the nurse explain to the mother? Select all that apply.
 
  a. Low oxygen levels in the infant's blood
  b. Rubbing the newborn with a towel or blanket
  c. Surfactant, a special lubricant in the lungs
  d. Increased blood flow to the infant's lungs
  e. Cold environment in the delivery room

Question 2

Which assessment finding should convince the nurse to hold the next dose of magnesium sulfate?
 
  a. Absence of deep tendon reflexes
  b. Urinary output of 100 mL total for the previous 2 hours
  c. Respiratory rate of 14 breaths/min
  d. Decrease in blood pressure from 160/100 to 140/85

[nguyenhoanhat]

Answer to Question 1

A, B, E
Feedback
Correct A postnatal change in the respiratory system is the stimulation of
respiration by hypoxemia, hypercarbia, cold, tactile stimulation, and a
possible decrease in the concentration of prostaglandin E2.
Incorrect Surfactant in the lungs lowers surface tension and facilitates lung
expansion. It does not stimulate respirations. Pulmonary blood flow
increases after birth, but this does not stimulate respirations in the
newborn.

Answer to Question 2

A
Feedback
A Because absence of deep tendon reflexes is a sign of magnesium toxicity, the
next scheduled dose should not be administered. Calcium gluconate is the
antidote that should be administered.
B An hourly output of less than 30 mL could indicate toxicity.
C A respiratory rate of less than 12 breaths/min could indicate toxicity.
D Decrease in blood pressure is an expected side effect of magnesium sulfate.