How many hours for blood fasting test

Common Questions and Answers about How many hours for blood fasting test

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Avatar f tn I'm a 23 year old female, I'm obese though I have lost 60 lbs in the last year, and I have been having some symptoms that worry me. I have previously been diagnosed with PCOS. The doctor put me on Metformin and Yasmin, though I stopped taking the Metformin because it made me feel ill. That was over four years ago. At the time, my fasting blood sugar was 101, but I had eaten some ice cream at the beginning of the eight hour period. I had my fasting blood sugar tested again two weeks ago.
Avatar m tn You should ask your doctor your question. That you had seen elsewhere fasting was needed for the test and what, if any effect on the test result would having eaten prior have. I did find this on the NIH web site “Although FibroTest may be performed on blood samples from fasting or non-fasting patients, FibroMAX must be performed on samples from fasting patients.“ So it looks like it depends on the specific test used.
Avatar f tn NO fasting is fasting 12 hours or 16 hours its still fasting. no error because you fasted for 15 instead of 12 hours.
Avatar n tn I have had a blood sugar test and gave a reading of 6.1 about 1 hour after a breakfast (Weetabix, Milk, Orange Juice). I have to go back and have repeat test but after having nothing to eat approx 9 hours beforehand....will this give an increased or decreased reading.
Avatar m tn s why a fasting blood test usually requires that you avoid all food and drinks except water for 12 hours before your screening. It's also advised that you avoid alcohol for 24 hours before your fasting blood test, as well as any strenuous exercise.
Avatar f tn Am due for glucose testing. Im really hungry how many hours in between do i need to fast to be sure the test comes out right .
Avatar f tn You can determine your personal testing time to catch your peak blood sugars by eating a regular meal and then testing every 30 minutes for say 2.5 hours. The peak blood sugar measured will then tell you your testing time. Thereafter you test at that time after eating. Ideal target peak post eating blood sugar is < 140 (and even better if it is < 120, or fairly close to your fasting level).
Avatar m tn Testing times should be fasting and then 2 hours after eating. By doing this you will also learn which foods make your blood sugars high (and you can then avoid them). if your blood sugars stay high even with lifestyle measures then medications (oral such as metformin, or injected insulin if your sugars were very high) would be recommended. Please read up on diabetes and it's management.
10881528 tn?1423629432 I had the two hour test and you fast for 10 hours the night before and then have the test in the morning. They take your blood right away and then you drink this awful sugar drink. Who knows what's in it..... then you get your blood taken after an hour and the following hour. At least that's how it worked for me.
325405 tn?1262290178 Haven't yet been in to see an endocrinologist or a dietary person to talk blood sugar levels and diet. Am having problems dealing with my insurance company who won't even cover my stupid testing strips. They basically are $1 a strip. Expensive. I had gestational diabetes several years ago (gestational diabetes was covered 100% for supplies and visits), so I am aware of how to do all the blood testing and have been doign fine about that.
Avatar f tn A lot of doctors are now just taking a blood sample for a test called A1C. The A1C test is a common blood test used to diagnose type 1 and type 2 diabetes and then to gauge how well you're managing your diabetes. The A1C test goes by many other names, including glycated hemoglobin, glycosylated hemoglobin, hemoglobin A1C and HbA1c. The A1C test result reflects your average blood sugar level for the past two to three months.
Avatar n tn At the clinic where the blood is drawn they said he is the only doctor who requests a non-fasting cholesterol test. I thought maybe there is something new out there but I can't seem to find it. My cardiologist is mostly interested in the triglycerides so there's my dilemna.
490398 tn?1319940717 This is NOT a fasting glucose. My dad is diabetic and he has all of the tools to test blood. He has regular diabetes not Type 2 but it usually skips a generation. I had blood taken at the doctor last week, again, not fasting, for other health problems and it came back at 169. My doc obviously wants to retest me when I've been fasting and get an A1c.
Avatar n tn In general, if your blood sugar level is below 100 mg / dL after fasting for at least 8 to 10 hours, then your blood sugar is normal. Blood sugar levels are usually lowest before each meal.
Avatar f tn I am 15 weeks and I was 124 in fasting and 220 after food in my first test. Dr. Had put me on diet for four days n now I am 108 in fasting and 126 after food. Dr. Had advised me to be on a diet . this time diet is a little bit relaxed.
Avatar n tn My 15 year old son just tested 109 on a home blood sugar test. He had not eaten for 3 hours.
Avatar n tn blood sugar of 109 is within normal limits. fasting blood sugar of over 120 is indicative of diabetes. you can ask for a OGTT (oral glucose tolerance test) where she will drink so super sugary drink wait 10 hours and they will test her blood sugar. her symptoms don't match up with diabetes. the big symptoms are that she is almost thristy, always going to the bathroom, always hungry and eating but losing weight. i hope this helps.
Avatar n tn I have only heard fast for my Cholesterol 12 hours only water..Nothing bout Fasting for thyroid blood test, does it make a difference to the test? I Haven't heard dont drink before a test, but i probably wouldn't..
Avatar m tn They wanted me there no later than 12-14 hours of fasting when I accidentally slept in and showed up at after 15 1/2 to 16 hours of fasting. The second mistake is that I think I accidentally broke fast. You see I almost reflexively grab my huge mug of coffee every morning without thinking and that morning I did. I had the equivalent of two cups of black flavorless coffee. I am not entirely sure if that affects the exam (my doctor doesn't think so but a lot of the nurses and lab techs do).
Avatar m tn To follow up, I had been fasting for 12 hours when I took the test.
190885 tn?1333025891 last blood test i got was in june.... i've got a basic blood test set up for tomorrow morning at 9 am...they said don't eat anything 12 hours before the blood test...if i didn't ask about it they wouldn't have told me...so is it important to not eat anything for 12 hours before this basic liver funtion test? thanks...
Avatar f tn I have made my appointment with my Dr. For Friday morning at 8 am.. Fasting blood sugar and hba1c test will be done... I'm a bit nervous, my fasting blod sugar this am was 112... Hopefully I'm going to be diabetic free!!
Avatar m tn unfortunately testing for diabetes by A1c and fasting or random test (random test gives random results) is not very good. sort of like checking a boat for leaks in dry dock. you need GTT test Glucose tolerance test to see how you react to sugar.