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In Diagnosis of diabetes mellitus. Between fasting and Random blood sugar which one is the best?

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Because different food has different glycemic index then fasting blood sugar is the best.
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YES....GOOD. QUESTION... ....DR., FASTING. BLOOD. SUGAR. ESTIMATION. ....IS. BEST ..ADVISABLE.... 1........…. IF. FASTING. BLOOD. SUGAR. LEVEL....IS. ..BETWEEN. ...100 --125. mg / DL.....IT. IS. TERMED. AS... ....PREDIABETES... IF....THE. FASTING. BLOOD. SUGAR. LEVELS. ARE... ..ABOVE. 126. mg / DL.......IN... TWO. CONSECUTIVE. TESTS .... THEN . .DEFINITELY.... ....IT. IS ......DIABETES. MELLITUS... 2/........IF. RANDOM. OR. POST. PRANDIAL. BLOOD. SUGAR. LEVELS....ARE. ..ABOVE. ....NORMAL. LEVELS.... ...THEN ...THEY. SHOW....SOME. INTRINSIC. ..DISORDER. AND DISEASE....LEADING..... TO......D. M... ...
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A few different types of blood glucose tests are used. Fasting blood sugar (FBS) measures blood glucose after you have not eaten for at least 8 hours. It is often the first test done to check for prediabetes and diabetes. Random blood sugar (RBS) measures blood glucose regardless of when you last ate. I prefer RBS as auithantic for DM diognosis and controll.. As there is a strict ruleof fasting for minimum 8 hours. Where as RBS has no any pre condition...so pt may or may not have his/her food ...fasting for how msny hours or parendal...!!. For emergency its ok to check pt as diabetic or glycemic controll.. But thumb rulr is either FBS or GTT & HBA1C.
If pt is known c/o diabetes than random bsl are sufficient to take decisions But if you detect bslR raised in unknown history it only gives an idea of present status but cannot be levelled as diabetic for this hba1c is beat marker FBSL always a guidence for diabetes
Thanx dr Vipin Bihari Jain
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Random Blood SUGAR is best inspite of Fasting Blood SUGAR
Random is more specific
Fasting
Post prandial /GTT/HB1Ac r the best indicator of Diabetes,coz RBS is an emergency assessment or checking in an established cases, It’s always better to have Fasting & strict Post prandial levels for Rx in Diabetes.
Random glucose testing is a powerful tool for people with diabetes. It can help assess how well the disease is being managed
Because different food has different glycemic index then fasting blood sugar is the best.
Fasting above 120 mg and random above ,200 are significant
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