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A member asked:
If having blood work done for physical in morning can you drink water before? doctor said no food or coffee
2 doctors weighed in across 2 answers
Yes: Fasting labs are generally aimed at looking at blood lipid and glucose levels. These would generally be unaffected by moderate water intake prior to testing. Actually, being dehydrated when the sample is drawn may more likely cause abnormal values. A caution would be if you were to drink excessive amounts of water and diluted your blood. This would be unlikely in normal circumstances.
Answered 6/13/2014
4k views
Yes: As long as this is a routine physical with no testing that will involve anesthesia (like endoscopy) and the water is plain water without flavoring or sugar, it is okay to have some water prior to routine blood work and a physical exam.
Answered 6/18/2014
4k views
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