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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Dr. Dorina Gurabardhi
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Dr. Dorina Gurabardhi

General & Family Physician

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Dr. Arun Prasad

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How does eating before fasting blood test affect the results

Premium Questions

Dr.   Ivan R. Rommstein MD

does eating beforehand affect a blood test for pregnancy? took a blood test last week and they called me back today and said fasting would give them better hormone count... View answer

Answered by : Dr. Ivan R. Rommstein ( General Surgeon)
Dr.  Michelle Gibson James MD

on Sunday how long should I wait to do those blood tests if I want the most accurate result? One ...Hey doctor, My gp recently ordered some blood test for me for malabsorption gut... View answer

Answered by : Dr. Michelle Gibson James ( General & Family Physician)
Dr.   Bonnie Berger-Durnbaugh MD

I m taking a blood test tomoro morning,must i take my usual 4 types of medicine in the morning ...25. I know i must not eat before test but can i drink a bit of water? ... View answer

Answered by : Dr. Bonnie Berger-Durnbaugh ( General & Family Physician)
Dr. Ravi Bansal MD

fasted since night before. I tend to eat a high protein low carb diet ...I received a blood test back with creatinine level of 2.58 and gfr of 23.14. All other blood ... View answer

Answered by : Dr. Ravi Bansal ( Nephrologist)
Dr.   Abhay A Mali MD

of the results. I am rather phobic about health issues. I did read that fasting blood sugar can rise 10 to 15 pts ...I just had complete blood work done. I haven't had it done for almost 4 years... View answer

Answered by : Dr. Abhay A Mali ( Diabetologist)

Public Forum Discussions

Dr. Vandana Khare MD

I had my BUN levels checked and the results were a 40; however I did not fast and came straight from my morning run. Creatine levels were fine. We re=took the blood tests when I did not run... View answer

Answered by : Dr. Vandana Khare ( Pathologist and Microbiologist)
Dr. Jyothi B L MD

beers the night before around 11hrs before the test. Will this affect the results? I live in Germany ... wasn t asked to fast by the doctor and as it was my first ever blood... View answer

Answered by : Dr. Jyothi B L ( Pathologist and Microbiologist)
Dr.  Shinas Hussain MD

Alkaline phosphate 138. All other blood tests normal. I had Graves Disease. Swallowed radioactive pill 4 months ago. I drank a Boost, ate banana and plain bagel before CBC. Can that affect... View answer

Answered by : Dr. Shinas Hussain ( General & Family Physician)
Dr. Kaushal Bhavsar MD

I drank 3 alcoholic drinks on Friday night, and about 4 on Saturday night. I have a blood test ... too much?I am healthy, eat well, and I am active. I normally drink 5-8 drinks per week. ... View answer

Answered by : Dr. Kaushal Bhavsar ( Pulmonologist)
Dr. Kaushal Bhavsar MD

how long before having a hypertension blood test do you need to fast ... View answer

Answered by : Dr. Kaushal Bhavsar ( Pulmonologist)

Mobile Questions and Answers

Dr. Panagiotis Zografakis MD

Hello, there is no simple answer because there may be differences. After eating your TSH may be lower. I usually advise patients to do whatever they want because we can't say which value is the best and more...

Dr.    Mohammed Taher Ali MD

Hi Raj Vojjala, Minimum 10 hrs overnight fasting is recommended before giving the fasting sample for blood glucose and lipid profile. Hope this answers your query., Reply with thanks.

Dr. Jorge Brenes-Salazar MD

Dear patient, Yes, it should not affect the test, but in all honesty Teresa, quitting smoking is the smartest, best thing that you can do for yourself and others around you (eg. second hand smoke). Hope that...