Deck 32: Clinical Manifestations Common With Newborn and Early Childhood Respiratory Disorders

Question 1

Clinically, PPHN usually appears within the first 12 hours of life.

Answer 1

True

Question 2

Cesarean section is associated with persistent pulmonary hypertension of the newborn.

Answer 2

True

Question 3

Laryngeal stimulation is a known factor that triggers apnea in the premature infant.

Answer 3

True

Question 4

Persistent pulmonary hypertension of the newborn (PPHN) is caused in part by reflex pulmonary vasoconstriction.

Question 5

About 75% of premature babies weighing less than 1250 g suffer from apnea.

Question 6

Apnea of the newborn is defined as a cessation of breathing effort that is longer than 12 seconds.

Question 7

A decreased PaO₂ causes the pulmonary vascular resistance in the newborn to decrease.

Question 8

More than 25% of infants weighing more than 1500 g manifest severe apnea.

Question 9

Hyperglycemia is a known factor that triggers apnea in the premature infant.

Question 10

After birth, about 80% of the pulmonary vascular resistance (PVR) normally decreases within the first 24 hours.