HomeAnswersHematologyantibioticsDo antibiotics affect blood test results?

Will taking antibiotics impact blood test results?

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The following is an actual conversation between an iCliniq user and a doctor that has been reviewed and published as a Premium Q&A.

Answered by

Dr. Singh Smrita

Medically reviewed by

iCliniq medical review team

Published At March 6, 2018
Reviewed AtJanuary 9, 2024

Patient's Query

Hello doctor,

Does having an upper respiratory infection and taking an antibiotic for it impact blood tests for IgG, IgA, gamma globulin, etc.? Should I wait a month before these blood tests?

Answered by Dr. Singh Smrita

Hello,

Welcome to icliniq.com.

Protection in the respiratory tract is mainly by IgA which provides mucosal immunity. In respiratory tract infection, the level of IgA has been shown to be increased. IgG levels are generally increased long after the infection first occurs.

It would be better to wait for a month so that the IgA levels return to normal after the infection subsides.

Thank you.

Same symptoms don't mean you have the same problem. Consult a doctor now!

Dr. Singh Smrita
Dr. Singh Smrita

Hematology

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