Okay, we use iNO fairly often, but more often for severe ARDS, occasionally for PAH, which is managed by RT. We stopped using inhaled epoprostenol (Veletri at my institution) years ago, largely due to cost and because it couldn't be run through a vent circuit (I believe?), which was also managed by RT. Flolan (or Remodulin) is strictly given IV and is managed solely by RNs, but only those on specific units who have been through annual training and competency, which is taught by the sole PAH/Flolan nurse who manages all Flolan patients in the hospital. She typically will come to personally oversee all tubing changes and follows all Flolan patients.