Doctor insights on:
How Long Do I Fast For A Fasting Blood Test
Eight to Twelve: Eight to twelve hours should suffice.Get a more detailed answer ›
Not really: The aic test generally tells us what has been going on with your sugar over the past 3 months approximately. One does not really have to fast for it, but it is best done fasting in my opinion, because your doctor will probably want to see a fasting blood sugar at the same time to help manage your diabetes. Often a lipid panel is done at the same time, which requires one to be fasting. ...Read moreSee 1 more doctor answer
In a way, yes: If you fast for longer than a day or so, it will alter some blood chemistries. Fasting tests are usually set for an overnight fast, or a 12 hour fast. Prolonged fasting is starvation and it affects the body metabolism. ...Read more
No fasting: Not requiredGet a more detailed answer ›
Yes: Yes yes yes, you want to have no food. You can have water if you want. That wont affect the results. Good luck. ...Read more
Drug test: Once a specimen is collected and placed in a container there is no time limit. It can be done with a rapid read cup that can be read in 5 min but these have occasional false positives and negatives. It can be further tested with gas or liquid chromatography and mass spectrometry which are mush better and are nearly never wrong ...Read more
6 and 12 months: Usually your physician will check you at 6 and 12 months. If you haven't been compliant with your meds, tell your physician and you can be treated again. This isn't nearly as bad as what can happen if this is neglected. Syphilis is still a terrible disease if not treated. ...Read more
About an hour: Point of care test may be available in a matter of minutes. Test done in the main lab takes about and hour. However, it usually takes longer for the results to get back to the ordering doctor due to time taken for blood collection, transportation to the lab, processing in the lab, recording of results. Retesting in a limited number of cases etc. ...Read more
Depends on the test.: If you are checking fasting blood glucose, you should ideally fast for 6 hours. If you are getting a glycated hemoglobin (hba1c), fasting or non-fasting state des not affect the test since the test is a indirect calculation of the average blood glucose for 90 days by measuring carbohydrate molecules attached to the red blood cells, which cycles within our body on the average of every 90 days. ...Read moreSee 1 more doctor answer
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