For people interested I found the following video with Dr Asad Khan (MD) who has had the '
Venous Oxygen Saturation' test performed and which he found was markedly low.
Video Source: YouTube
Video Title: Is (Micro) Clotting Causing Long Covid? | The role of H.E.L.P Apheresis.
NB: The interviewer is an LC patient the interviewee is Dr Asad Khan (pulmonary MD), who is suffering from LC and supports ME sufferers.
For those unable to watch the 40 minute video due to brainfog, here a summary specifically on the 'Venous Oxygen test' I thought some of the forum members may find helpful:
'Venous Oxygen Saturation' test:
1. Not a test a GP can perform.
2. Simple venous sample taken from peripheral blood taken with a blood gas syringe.
3. Without delay place sample into a blood gas analyser. (NB: Machines are found in ER departments, ICU, respiratory wards etc).
4) Test is non specific marker of oxygen transport (blood into tissue).
5) An abnormal test doesn't mean you have microclots, LC or ME or conversely, aren't sick.
6) You can have a normal value and still have the above conditions.
7) It represents the balance between two processes (ease of which oxygen diffuses into the tissues) +
Tissues may be performing anaerobically, full of lactic acid, hungry for oxygen which lowers venous oxygen saturation.
8) Tests is a reflection of imbalance between the two.
9) Good non specific indicator of being unwell.
10) Venous Oxygen Saturation Test is not related to a finger oxygen saturation monitor (96% oxygen+ in healthy individuals).
11) Venous Oxygen Saturation Test Median range for adult male is 73&.(Range: 65-75%, 60-80%). Dr Khan's was 32.
Timestamp for the above is 21:53 in the video.