What criteria do you use on echocardiogram and PFT to determine who needs further evaluation for CTD-associated pulmonary hypertension?  

PFTs are often obtained in patients with systemic sclerosis to evaluate for interstitial lung disease. Low DLCO on PFTs can signify an increased probability of PH, but it is by no means specific. Echocardiograms are readily available, offer additional information about possible causes of PH (e.g. LV...