If you’re looking to achieve the Registered Pulmonary Function Technologist credential, it is my great pleasure to bring this study guide to you. It is written with the idea that you, as a Respiratory Therapist, already have the very basic fundamentals of PFT in your knowledge base (as it is tested on the RRT exam). To build on that foundation, this PowerPoint should provide the “need-to-know” to be able to pass the exam at the Registered level but without overwhelming you with information you may not need for testing purposes.