I had to have a lab test done the other day at the hospital. As part of the test, they put one of the new pulse/oximeters on my right 1st finger. Because I had just come in from the cold, my hands were freezing as usual. Because of this, they could not get a reading on that finger. They tried my thumb; no success. The middle finger of my left hand; no success. Then they felt my hands and were shocked at how cold they were. Once they warmed up slightly, they were able to get a reading and,…amazingly, confirmed I was alive with a pulse and excellent O2 intake.
I suggest that this may be an initial test for the possibility of the presence of Raynaud’s and might bear at least a minimum trial to see if there is a correlation.
It’s true people with Raynaud’s can have difficulty getting a reading with these devices. We also have issues using touchscreens, particularly those we need to use outdoors, like an ATM outside the bank.
To the concept of using scientific devices for diagnosing Raynaud’s, thermal imaging is one method being explored in the medical community. Unfortunately most doctors lack the equipment, so it’s still a ways off from being a standard test. Here’s an article about an award given in the UK to a team using the technique to graphically display Raynaud’s: https://www.raynauds.org/2016/03/25/thermal-image-of-raynauds-is-an-award-winner/
This reply was modified 5 months, 3 weeks ago by Frostie.