Author Question: What blood flow pattern occurs in a ventricular septal defect? a. Mixed blood flow b. Increased ... (Read 106 times)

shofmannx20 · **on:** Jun 28, 2018

What blood flow pattern occurs in a ventricular septal defect?

a. Mixed blood flow
b. Increased pulmonary blood flow
c. Decreased pulmonary blood flow
d. Obstruction to blood flow from ventricles

Question 2

The nurse is performing an assessment on a 10-week-old infant. The nurse understands that the developmental characteristic of hearing at this age is which?

a. The infant responds to his own name.
b. The infant localizes sounds by turning his head directly to the sound.
c. The infant turns his head to the side when sound is made at the level of the ear.
d. The infant locates sound by turning his head to the side and then looking up or down.

ApricotDream · **Reply #1 on:** Jun 28, 2018

Answer to Question 1

ANS: B
The opening in the septal wall allows for blood to flow from the higher pressure left ventricle into the lower pressure right ventricle. This left-to-right shunt creates increased pulmonary blood flow. The shunt is one way, from high pressure to lower pressure; oxygenated and unoxygenated blood do not mix. The outflow of blood from the ventricles is not affected by the septal defect.

Answer to Question 2

ANS: C
At 8 to 12 weeks of age, the infant turns the head to the side when sound is made at the level of the ear. At 16 to 24 weeks, the infant locates sound by turning the head to the side and then looking up or down. At 24 to 32 weeks, infants respond to their own name. At 32 to 40 weeks, the infant localizes sounds by turning the head directly toward the sound.