Pulmonary Arterial Hypertension

Pulminate arterial hyperatension is the most common cause of palmery arterial hypertension. Forty percent or so of patients with group one are currently classified as idiopathic, which is not satisfying to any of us as internists,. So switching gears to w h o, group three, i want to know if these s might have underlying lung disease. And then another thing in group three that's super common is o s a. All of these patients should be getting a sleep study. And finally, we have our w h o group four.