Antibody test after Covid vaccine

After talking to my PCP about whether the Pfizer would work for me since there is concern that being on Remicade might prevent me from developing the antibodies, he sent me for an antibody test. I got the results and I thought it was negative for antibodies, but he said is is showing positive for antibodies but he didn't sound very definitive about that. Anyone ever had this test and can interpret? I had my 2nd dose of Pfizer on 3/7

Here are the test results:

Component Your Value Standard Range Flag
Misc Test Result Flexitest 1 A
Flexitest 1
SARS CoV 2 Ab (IgG)Spike, Semi QN
SARS CoV2,IgG,Spke,SemiQN >20.00 H Index <1.00

INDEX INTERPRETATION
----- --------------
<1.00 Negative
> or = 1.00 Positive

This test is intended to help identify individuals
with antibodies to SARS-CoV-2 (COVID-19). The results
of this semi-quantitative test should not be
interpreted as an indication or degree of immunity or
protection from reinfection.

A test result that is 1.00 or more (Positive) means an
immune response to a COVID-19 spike vaccine or recent
or prior infection with SARS-CoV-2. False positive
results for the test may occur due to cross-reactivity
from pre-existing antibodies or other possible causes.

A test result that is less than 1.00 (Negative) means
that antibodies were not detected in the blood sample.
This could mean that the patient has not been
previously infected with SARS-CoV-2. False negative
results for the test may occur if the
patient's
antibodies have not reached a sufficient level for the
test to be able to detect them. Antibodies can take up
to two to three weeks (sometimes longer) to develop
after someone is infected or final vaccine dose is
administered. How long antibodies to SARS-CoV-2 last
after infection is not known.

It says COVID IgG greater than 20. Greater than 1 is positive, so you have lots of antibodies 👍

Yes it is confusing! It actually doesn't make sense.
It's not clear what your result actually was.

Those numbers are really the range that is used, where 1-20 is not conclusive.

Ugghh... sorry. Hopefully there are some more numbers somewhere?

Flowers -- how did you join that study? Would it be too late for me to join? Do you have a link?

Ambling -- there were no other numbers on the results -- I copied everything except disclaimer stiff at the bottom that didn't have any results or info

CCinPA said...
Flowers -- how did you join that study? Would it be too late for me to join? Do you have a link?

Ambling -- there were no other numbers on the results -- I copied everything except disclaimer stiff at the bottom that didn't have any results or info

You have to be less than 90 days from your 1st shot to be in the study. I will see if I can find the link. I think someone on here shared it before.

MmeMulot said...
Here's the link to the UNC study:
https://ibdpartners.org/preventcovid

And the link to their preliminary findings:
https://ibdpartners.org/preventcovid/results

I don’t know what I am doing wrong but I cannot find the preliminary results. Do you have to be a member? I am in the study but I don’t get my blood test until Saturday,

They called back and said that I will be able to get the test and to watch my email over the next couple days. She said they have some leeway on that 90 day limit so I should be fine.

Flowers -- how long ago did you have the test?

MmeMulot said...

Twingirls said...

I don’t know what I am doing wrong but I cannot find the preliminary results. Do you have to be a member? I am in the study but I don’t get my blood test until Saturday,

Something is definitely going on with that. It only works for me when I click on the link from the email they sent me, not from the URL I copied and pasted (even though it's the same address).

Ok I went through one of the links to the study in my email and was able to see it. Thanks!