Miller - IRDS

Question 1

Surfactant begins to be released at _____ weeks

Answer 1

24

Question 2

Respiratory distress in newborns is characterized by ?

Answer 2

Tachypnea

Grunting

Nasal flaring

Retractions

+/- cyanosis

Question 3

Initial evaluation for infant w/ respiratory distress is ?

Answer 3

History

Physical

Glucose

CBC

CXR

Question 4

Failure of fetal lung fluid to be reabsorbed at the time of delivery

Hormonal changes associated with labor cause a reversal of Na channels in the lung tissue.

Failure of channel reversal leads to retained fluid in the lung —> increased respiratory effort to maintain adequate gas exchange

(More commonly seen in c section, males perinatal asphyxia, umbilical cord prolapse, depressed newborn[sedation])

Answer 4

Transient tachypnea of newborn

Question 5

Surfactant begins to be released by the __________- around 24 weeks gestations

Answer 5

Type II pneumocytes

Question 6

Most infants > _____ weeks make adequate surfactant

Answer 6

35

Question 7

1/3 of infants ___ to ___ weeks gestation are surfactant deficient

Answer 7

32

35

Question 8

The medical condition resulting from deprivation of oxygen to a newborn infant that lasts long enough during the birth process to cause physical harm

Answer 8

Perinatal asphyxia

Question 9

What is the time course of IRDS?

Answer 9

Start out ok, but develop respiratory distress a few hours after delivery.

Untreated symptoms worsen for the first 3 days of life.

Type II pneumocytes start to mmake adequate surfactant and symptoms resolve by 7 days

Question 10

Risk factors for congenital pneumonia

Answer 10

Prolonged rupture of membranes

Maternal fever

Uterine tenderness

Foul smelling amniotic fluid