My yearly PFTs were done recently and showed a 20% drop in my diffusion capacity and my total lung volumes. Although I usually am more worried about my yearly cardiac echo, PFTs are also nerve-wracking. As you sit in a cylindrical glass box and your nose is pinched with a plastic plug, you follow the technician’s instructions and blow in and out. We learned in medical school that this test is very “effort dependent” which is why we can’t use in children who are younger than about 7; younger children are not able to follow directions well enough to do well on the test. The technicians know that you have to follow directions and put in enough effort to the test in order for the results to be accurate, so they are generally very loud and scream “blow, blow, blow!!” Most will repeat the results if they didn’t think you tried hard enough. This most recent PFT, though, went a little TOO smoothly– no yelling or repeating of tests involved. I was worried even before the results came back that they might not be accurate. So I wasn’t overly concerned when I emailed my pulmonologist about the test results. He emailed me back right away (thanks, Dr. Naurekas!) and said he looked at the “flow loops” (the patterns that your respiratory cycle makes as they are recorded) looked normal to him and it didn’t look to him, based on what he could see, that my effort was poor. Therefore, he recommended a CT scan of the lungs.

That was quite a blow– for 6 years now, my PFTs had been completely normal. I had had a CT scan once before and that was normal too. Because I was scared I pushed Dr. Naurekas to order the chest CT asap; luckily I was able to do it in two days.
I’ve had a lot of medical testing done but somehow it never seems to get easier. I was nervously sitting in the waiting room for my name to be called and this woman plops down across from me. She looked like she was about 40, but very hard-living, and the right side of her face was swollen, the eye bulging from her head. She immediately starts screaming into her cell phone: “how am I supposed to get home? I got no money! You bastard!” on and on, seeming not to care who was listening. She hung up on one call and then dials another: “that dick, he punched me, I called the police, he’s going to jail, that’s the last time. They gotta check my eye now, I been waiting all day!” Several times I think she was trying to catch my eye but I was embarrassed for her and looked away.
My name was called and I was led into the CT scanner. I laid on a thin plastic bed and was moved in and out of a plastic-covered doughnut. It was a long scan. They were doing an “interstitial lung disease” protocol to see if I had developed any fibrosis, which required scans during breathing in and out, on my stomach and back. It took almost an hour to finish.
Just around the circular opening to the scanner is a thin window into the CT scan machinery which whirs around while the machine is running. I watched this whirring while I thought about the woman outside and how different her life was from mine. I wished I had said something to her. By the time I was done, she was gone. I had been myopically and completely focusing on what the CT scan would show and that lady’s conversations had snapped me out of that.
After all that, my CT scan was completely normal. Life goes on. Phew!
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