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» LymeNet Flash » Questions and Discussion » Medical Questions » Is it OK to take antibiotics before blood work? Does it affect AST, ALT?

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Author Topic: Is it OK to take antibiotics before blood work? Does it affect AST, ALT?
bluefish
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Can taking antibiotics about 3 or 4 hours before blood work affect your liver enzyme test results (AST and ALT)?

I usually don't eat or take any medicine, or vitamins about 12 hours before I go in and have blood drawn for CBC and CMP. Sometimes it is hard to avoid taking medication before the blood work. This last time I took my antibiotics 3 hours before the blood draw.

I'm currently taking Cefdinir 600mg a day and Clarithromycin 1000mg a day.
Posts: 9 | From Illinois | Registered: Jun 2011  |  IP: Logged | Report this post to a Moderator
Lymetoo
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Having the drugs in your blood stream at the time should not matter. It's the cumulative effect on the liver that they are measuring.

--------------------
--Lymetutu--
Opinions, not medical advice!
Posts: 96239 | From Texas | Registered: Feb 2001  |  IP: Logged | Report this post to a Moderator
GretaM
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Lymetoo is correct.

I eat and drink and live normally before my bloodwork.

Unless specifically requested to fast.
Posts: 4358 | From British Columbia, Canada | Registered: Jun 2013  |  IP: Logged | Report this post to a Moderator
   

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