Fetal and Neonatal

Question 1

The well-oxygenated blood from the placenta enters mainly which side of the heart?

Answer 1

Left

Question 2

Fetal blood that leaves the placenta is 80% saturated, while the saturation of the blood that passes through the foramen ovale is reduced to __%

Answer 2

67%

Question 3

Attempted respiratory movements during first trimester of pregnancy is usually caused by:

Answer 3

Tactile stimuli and fetal asphyxia

Question 4

At birth, more than ____ mmHg of negative inspiratory pressure in the lungs is usually required to oppose the effects of surface
tension and to open the alveoli for the first time.

Answer 4

25 mm Hg