At what age can babies begin to regulate their own body temperature?

Which supplementary view would demonstrate the posterior descending coronary artery:

The parasternal short axis view at the level of the aortic valve shown below is used to image which structures?

          Parasternal short axis view                Label the following structures in order from 1-4.                                                       

Left 4th arch forms the:

When performing two man CPR on an infant with no detectable pulse,  the compression to breath ratio is?

Which type of defect can be associated with an unroofed coronary sinus as well as TAPVR Type 2, “Whale Tail Sign”?

Any left to right shunt that becomes right to left or bidirectional due to increased Right Heart Pressure.

Which type of defect is illustrated below?  

Defect where two portions of the interventricular septum fail to align during development, commonly associated with other conotruncal malformations, such as Tetralogy of Fallot?