The D-Dimer test has been around for a long time, well over 30 years. The reason the public hasn't heard of it is because it is non-specific, unuseful, and largely eclipsed by actual biomarkers that are SPECIFIC to a disease.
So here is a wonderful case of you thinking this is somehow either kept in secret or a silver bullet, when it is generally entirely non-specific and therefore not useful in the diagnosis of disease. I used it as a marker to determine level of severity of COVID (acute phase) and to help predict mortality, but not to diagnose CoVID.
You have nicely demonstrated the problem of having no expertise, you have no idea what the test is used for, but because some propagandist claims to have talked with a physician who is making bank on being anti-vcxx (who has been thrown off staff at multiple universities including christian universities) for lying about his credentials -- well, gee, you seem to continually point out that you are advance only talking points, irrespective of what the actual truth is. And of course the conga line of acolytes will point out with increasing loudness and insults as they have no response to the truth.
Here’s the actual letter they sent to the FAA.
Everything I’ve read supports their advice.
https://roar-assets-auto.rbl.ms/documents/13286/letter%20to%20FAA.pdf
Check this out, report for all vaccines, all time, and cardiac arrest or myocarditis or tachycardia. Can’t rationally pretend everything is fine.
https://www.medalerts.org/vaersdb/findfield.php?TABLE=ON&GROUP1=VACY&EVENTS=ON&SYMPTOMS[]=Cardiac+arrest+%2810007515%29&SYMPTOMS[]=Myocarditis+%2810028606%29&SYMPTOMS[]=Tachycardia+%2810043071%29