I'm reviewing for the Canadian Nurses Association certification exam in pediatric critical care. There's a lack of Canadian resources for this exam, and I had to miss the webinar that CNA provided for examinees because I needed to sleep after nights more than I needed the webinar. So now I'm using some rather dated resources obtained from a friend who wrote the AACN certification exam about 7 or 8 years ago. I'm lost when it comes to the questions related to pulmonary artery catheters and pressure measurements because we don't use them. In the 10+ years I've been on my current unit (a mix of CV, solid organ transplant and general PICU patients) I've seen exactly one. (We monitor left atrial pressures in most cardiac surgical patients and right atrial pressures in those with pulmonary hypertension instead.) They've fallen out of favour in the adult world due to high cost for low return. I'd hate to just assume that the exam won't have much on it related to them and then get there and find out how wrong I was! My question to all of you is - does your unit still use them?