Drink Water Before Kidney Blood Test. But if you re having a fasting blood test you will be told not to eat or drink anything other than water beforehand. You should not eat food drink coffee or take some medications for eight to 12 hours before a fasting blood test but most physicians agree that you can drink water.
You should not eat food drink coffee or take some medications for eight to 12 hours before a fasting blood test but most physicians agree that you can drink water. Again i was told to drink. Our laboratory testing is not that precise.
Again i was told to drink.
The healthcare professional arranging your test will tell you if you need to do anything to prepare for it. Again there were abnormal numbers for kidney function. You should not eat food drink coffee or take some medications for eight to 12 hours before a fasting blood test but most physicians agree that you can drink water. So for a full week i drank 4 liters of water every day.