“Can I drink water during fasting for blood test?”
I will have a blood test. Can I drink water during fasting for blood test?
1 Answer

Shelley Tabe Arrey
Registered Nurse, Medically Fragile Pediatrics, Clinical Nurse Educator
Washington
Yes, please!! If you don't then you will have a false result and possibly not even be able to draw the blood due to dehydration. Please drink plenty of plain (nothing added) water while fasting.