My doctor recommended a PFT test at a government hospital. I went to the technician, and she performed the PFT, then gave me an inhaler. After that, she told me to wait for a few minutes. However, she called me back earlier than expected after seeing my IgE report (which is 8,000). She then did a FeNO test before performing the post-inhaler PFT. I’m worried because she did the FeNO test after giving me the inhaler. Can FeNO be done after using an inhaler, or does it affect the results? Should the inhaler be taken before or after FeNO? For context: My IgE is 8,000 I have breathing issues I’ve attached my FeNO report