This sounds like a very helpful test. Is it widely available at labs? Is it inexpensive?
It’s been known from April 2020 that COVID is largely a vascular disease. Diminished lung function is due to vascular problems in the alveoli in the lungs and inhibited oxygen transport to the blood. The Chinese sure engineers a nasty weapon.
The suPAR test is available for labs.
“The suPAR level can be measured using the suPARnostic® product line. suPARnostic® is a CE-IVD certified antibody-based product range applied for quantitative measurements of suPAR in the clinical setting. Three product formats are available: 1) TurbiLatex, validated for clinical chemistry systems currently including the Roche Diagnostics cobas c501/2 and c701/2 systems; the Siemens ADVIA XPT and Atellica systems, and the Abbott Architect c and Alinity systems. 2) Quick Triage, which is a platform that is applied at the Point-Of-Care. 3) ELISA.”
https://en.m.wikipedia.org/wiki/Soluble_urokinase_plasminogen_activator_receptor