Chemoreceptors play a role in the regulation of

Chapter 1

1.Chemoreceptors play a role in the regulation of

• cardiac contractility
• hypertension

*c. ventilation

• blood vessel diameter

2.At what point in development does blood begin to flow?

• immediately after delivery
• immediately preceding delivery

*c. around the third week

• two days after conception

3.Pressures in the right, or venous system, compared to those in the left, or arterial system of the fetus are

*a. higher

• incomplete
• lower
• the same

4.The central and peripheral nervous system arise from which germ layer?

• endoderm
• philoderm

(Comprehensive Perinatal & Pediatric Respiratory Care 4e Kent Whitaker, Paul Eberle, Lisa Trujillo) (Test Bank, Correct Answer are marked with*) 1 / 4

• mesoderm

*d. ectoderm

5.Normally, fetal lung fluid moves steadily at what rate?

• 15 L/hour
• 1 ml/hour

*c. 15 ml/hour

• 100 ml/hour

6.Fetal lung maturity can be predicted by withdrawing a sample of amniotic fluid and comparing the level of phosphatidylglycerol (PG) to

• ethanol

*b. sphingomyelin

• lecithin
• serum

7.Which of the following carries the fresh blood from the placenta through the umbilical cord and into the fetus?

*a. umbilical vein

• umbilical artery
• hepatic portal vein
• aorta

8.Which of the following prevents the bending or pinching of the umbilical cord that may stop blood flow to the infant?

• / 4

• arteries

*b. Wharton’s jelly

• veins
• amnion

9.Baroreceptors are stimulated by

• pH
• ventilation
• oxygen

*d. stretch

10.Which condition is characterized by the rapid deterioration in the respiratory status of a newborn following delivery?

*a. respiratory distress syndrome (RDS)

• pneumonia
• sudden acute respiratory syndrome (SARS)
• asthma

11.The change from fetal circulation to adult circulation is called

• pulmonary pressure

*b. transition

• coordination
• resuscitation

12.Polyhydramnios indicates a problem with the 3 / 4

• umbilical cord
• urinating mechanism of the fetus

*c. swallowing mechanism of the fetus

• cardiovascular function of the fetus

13.The thicker, outer layer of the embryonic disc, or blastoderm, is the

• embryo

*b. ectoderm

• endoderm
• mesoderm

14.Why must the lung fluid be completely evacuated from the lungs at birth?

*a. To allow for unhindered ventilation in the neonate

• To collapse the airways during birth
• To reduce the size of the infant passing through the birth canal
• To allow the infant to nurse

15.Alveoli continue to

• increase in number for 2 years after birth

*b. increase in number for 8 years after birth

• maintain their count throughout childhood as the lungs are completely developed at

birth

• increase in number for the entire lifetime

• / 4