Why do you have to fast for 14 hours before a blood test?
You dont have to fast for 14 hours until and unless prescribed a by a doctor.
Last updated on 29 Mar 2023
Yes eating before the test could result in false results.
Yes, 18 hours fasting may affect blood glucose levels.
Mornings are the best time to take the test.
The tests are fasting blood glucose test, HBA1C, and post prandial blood test.
Food nutrients can interfere with the test especially in the case of fasting blood glucose hence it is advised to remain empty stomach before giving the test.
FBS, FBG, Fasting Blood Sugar
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