Help with test interpretation

[beanlake14]

I got a spike test a week after my Pfizer booster, having had my first one Jan 30 and second Jan 18. Since I had the test with routine blood work, I didn't wait the full two weeks. Here are the results:

COVID-19 Spike RBD, Ab23.30 U/mL

<0.80 U/mL

I need help knowing what this means. The PA said it showed I had "some" protection. I honestly think my oncologist was annoyed that she ordered the test as he doesn't want us changing our behavior.

So, is this a decent result, terrible? Just can't find anything out there.

[lankisterguy Volunteer]

Hi beanlake14,-

I would need to guess that your result was 23.3, and I see that is above the minimum value of <0.80 but I cannot see the maximum value - usually 250 or 2500.

But I also read that those are just the capabilities of the testing process and don't indicate what value is needed for immunity to contracting the virus.

-

In any event, no one has published any data yet to corrolate the results to a level of protection.

-

I'm attaching a screen shot of my result, and the dark bar makes the report easier to read, but I don't know if my 101 result is adequate or whether I would need a 250 to be protected from the virus.

-

Len

Labcorp LLS test report

[lankisterguy Volunteer in reply to lankisterguy]

Here is the written version of the result, much harder to interpret

Labcorp official report Screenshot 2021-04-27

[beanlake14 in reply to lankisterguy]

Thank you. Think mine is pretty minimal.

[bkoffman CLL CURE Hero]

Some response is better than none, but I wouldn't rely on the vaccine for protection.

[beanlake14 in reply to bkoffman]

Thank you so much. I always look forward to your posts.

[LeoPa]

You have some antibodies but nobody knows the level of protection they confer. Since there are not many of them, you are to remain extremely cautious. That's my take.