What is another word for orthopnea?
Pronunciation: [ˈɔːθəpnˌi͡ə] (IPA) 
Orthopnea is a medical term used to describe shortness of breath that occurs when a person lies down flat. There are several synonyms that may be used to describe this condition, including paroxysmal nocturnal dyspnea, a term that refers to sudden episodes of difficult breathing that occur at night; platypnea, which is shortness of breath that occurs when standing or sitting up; and trepopnea, which is shortness of breath that worsens when lying on one side. While these terms are often used interchangeably with orthopnea, they may be more specific in their denotation of the underlying cause, making them useful in medical diagnosis and treatment.
