A Neonatal Nurse Has a 2 Month Old Patient and She

A neonatal nurse has a 2 month old patient and she must ensure monitoring of Hemodynamic monitoring, pulmonary pressure, and right, left venous pressure included in the monitoring will be the heart rate, any contractibility and arrhythmias. Along with there will be other various presentations to watch for as well. What is the most likely reason for this intensive type of monitoring from the following choices?

A) The baby has a congenital heart defect
B) The infant is running a fever
C) The patient is post surgical from a cardiac procedure
D) The infant has contracted a virus