Which of the following tests is most likely used to rule out congestive heart failure in a case of cardiomegaly during pregnancy?

[Joyce]

#july2020usmle2ck

Which of the following tests is most likely used to rule out congestive heart failure in a case of cardiomegaly during pregnancy?

A- Arterial blood gas
B- Echocardiography
C- Electrocardiogram (ECG)
D- MRI of the chest

 

[Tiffany Wong]

A- Arterial blood gas