Q. Will taking antibiotics impact blood test results?

Answered by
Dr. Smrita Singh
and medically reviewed by iCliniq medical review team.
Published on Mar 06, 2018 and last reviewed on: Aug 28, 2019

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?

Dr. Smrita Singh

Hematology Pathology
#

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.

For more information consult a hematologist online --> https://www.icliniq.com/ask-a-doctor-online/hematologist

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