Shortness of Breath in the pregnant patient: what's your approach?

So I saw this patient today and am having second thoughts (too late I know but nonetheless) and would love to hear what others are doing. Youngish female, second trimester, short of breath x 2 days, worse lying flat, better on side. Reports feeling chest congestion, dry cough. No frank chest pain but feels tight. No runny nose, sore throat, yaddy yaddy. No leg swelling, calf pain. no fevers. Exam noted for wheezing in lower lung base. Otherwise clear. No evidence of volume overload... Shortness of Breath in the pregnant patient: what's your approach?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums