With Regard to the Newborn's Developing Cardiovascular System,nurses Should Be

With regard to the newborn's developing cardiovascular system,nurses should be aware that:

A) the heart rate of a crying infant may rise to 120 beats/min.
B) heart murmurs heard after the first few hours are cause for concern.
C) the point of maximal impulse (PMI) often is visible on the chest wall.
D) persistent bradycardia may indicate respiratory distress syndrome (RDS) .