Don't thank him/her yet. I certainly wouldn't say you'll never have to do them if the scenario absolutely calls for it. They NEVER give you orthostatics on the door vitals, and it's not one of the studies they explicitly say you should request instead of do yourself. If a patient is there because they get dizzy every time they stand up, then in real life THE money in the physical exam is doing orthostatics. Nothing else tells you squat. But since it takes a lot of time to take a BP, change positions, wait 2 mins and take another BP, you only want to do orthostatics if you absolutely, positively would want to know. So yes, I'd say there are possible instances where you will want to do orthostatics (there certainly was a case in FA that called for it). But most of the time you won't need to take vitals otherwise. I'd say go into the test knowing that only in that one case (the patient who gets dizzy/faints with positional changes) will you do orthostatics, and you will be set. But if you do get that case, I think you are kidding yourself if you think you can just "order orthostatics" and get full credit on the physical exam.