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17 answers

Hello, I am a pharmacist from Oklahoma.

You are encouraged to drink water while fasting for blood work. Drink it like you normally would. Your body can go several weeks without food but only a few days without water. Depriving yourself of water could result in electrolyte imbalances that could negatively affect your health.

Though I don't know the nature of your blood testing, you are most likely having to fast so that food does not affect the results of your lipid panel. To get an accurate reading on your triglycerides you must not have eaten anything for 14 hours prior to the exam. This maintains that your cholesterol tests are accurate. Water, however, will not affect the test either way.

2006-07-05 03:07:30 · answer #1 · answered by Anonymous · 6 0

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RE:
Can I drink water while fasting before bloodwork will be taken?

2015-08-06 07:10:15 · answer #2 · answered by Anonymous · 0 1

I ask my doctor before my last bloodwork and he said no food for 10 hours before but that I could drink black coffee or water.

2006-07-05 03:05:49 · answer #3 · answered by Beth 4 · 1 1

Yes you absolutely can. All it will do is dilute your blood, which won't change anything. Also, depending on how long you wait before you take your test, your kidney's might have already filtered all the blood and therefore removed all the water you drink. It's not a problem!

2006-07-05 03:05:30 · answer #4 · answered by Mark E 2 · 3 0

depends on what the bloodwork is for. Call your doc or the clinic where you're getting the blood drawn and they'll be able to tell you.

2006-07-05 03:03:42 · answer #5 · answered by Anonymous · 1 0

Just a little bit. It can affect your results if you drink too much and then they might ask you to come back to take more blood.

2006-07-05 03:04:26 · answer #6 · answered by Anonymous · 1 1

where I go for blood tests they say to drink water, it helps them with getting the blood I guess

2006-07-05 03:03:55 · answer #7 · answered by Iron Rider 6 · 2 0

That's a good question!

2016-08-20 05:44:09 · answer #8 · answered by gertie 4 · 0 0

con I drink milk be for fasting

2015-03-18 15:09:53 · answer #9 · answered by Paul 1 · 0 0

You have to consult your doctor first.. some say you can and some say you can't ask your doctor

2006-07-05 04:20:49 · answer #10 · answered by Anonymous · 1 1

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