2006-09-13 10:25:18 · 8 answers · asked by Joshua P 1 in Health ➔ Diseases & Conditions ➔ Cancer
They want average readings and they will peak if you have eaten.
2006-09-13 10:27:33 · answer #1 · answered by Barkley Hound 7 · 0⤊ 0⤋
So that your blood sugars and toxins that usually occur in the body don't effect the outcome of the tests... if you were to eat a peice of chocolate 12 hours before the blood test then the test would come back saying that you have high blood sugar and then you'd have to do more tests... save the doctors some trouble... smiles
2006-09-13 17:33:47 · answer #2 · answered by Anonymous · 1⤊ 0⤋
Because food intake can drastically change the result and can yield abnormally high or erroneous results that may affect the right diagnosis that may lead to a wrong management. But it doesn't have to be 24 hours, a 6 to 8 hours fasting will suffice.
2006-09-13 17:40:27 · answer #3 · answered by *** 3 · 0⤊ 0⤋
which blood or urine test did you ahve to fast 24 hour for? I am aware of certain blood tests where 10-12 hour fast is recommended eg fasting sugar or lipid profile. feel free to email me with any questions
2006-09-13 17:31:49 · answer #4 · answered by HK3738 7 · 0⤊ 0⤋
Never heard of this. For some test, i.e. lipid panel, you have to have it drawn in the morning before you eat. Also, fasting blood glucose should be done before a meal, too. 24 hours? who told you this?
2006-09-13 23:03:35 · answer #5 · answered by Becca 5 · 0⤊ 0⤋
Because certain foods or drinks can change the results of the test, and they need an accurate reading.
2006-09-13 17:28:12 · answer #6 · answered by smartypants909 7 · 0⤊ 0⤋
To remove any food particles from your blood. Or any other substances that will interfer with the results.
2006-09-13 17:33:01 · answer #7 · answered by Pantherempress 7 · 0⤊ 0⤋
So you levels are not off by something you have just ate. If you eat a bananna your Potassium levels would be high (one example).
2006-09-13 17:28:09 · answer #8 · answered by sooners83 4 · 0⤊ 0⤋