Does the amount of water/fluids we've been drinking before a blood test, make any difference to the results?

[PaulaS]

Maybe it's a silly question, but I often wonder if I'm a bit dehydrated before a blood test, will it make the blood more concentrated and push up numbers of blood cells, platelets etc.?

[Cllcanada Top Poster CURE Hero]

More fluid might change results very slightly...but the more water you drink the easier it is to find a vein.

All kinds of things can influence blood counts however, time of day, when you last ate, even if you ran up a flight of stairs to get to the blood clinic...

See Dr. Leclairs videos

patientpower.info/video/str...

patientpower.info/video/und...

~Chris

[PaulaS Volunteer]

Thank you Chris. I looked up Dr. Leclairs videos too, and found them very helpful. In fact I listened to the second one three times, so I could absorb all that she said. So much to learn, with this CLL business.

[jangreen]

Hi I am sure with the type of results you can get from blood tests they can tell you what you had for dinner the night before! I have been asked to restrict my tea/coffee intake to 6 and no more than 8 cups a day. Whereas I would have a cup of tea on the hr and every hr.

[Quarry]

Another video on 'when to treat on white blood cell count' from Dr Leclaire: she really shines light on blood info!

patientpower.info/video...