It's difficult to say without knowing all the facts.
A repeat glucose is usually performed for one of several reasons:
a) There is a sampling error-ie the nurse didn't label the sample correctly and the lab won't process it.
b) You have a raised blood glucose level-in the absence of obvious symptoms (thirst, malaise etc), two readings are required for a diagnosis of diabetes.
c) The sample was a "non-fasting" sample-(or rather the doc doesn't know whether the sample was non fasting.)-and is seeking clarification-repeating the test is usually the quickest way of doing this.
d) Your result is borderline.
a&c are the usual culprits.
b usually leads to a diagnosis of diabetes. More info to follow if this is the case.
d is usually followed by a "glucose tolerance test" which invariably leads to the delightful label of "impaired fasting glycaemia/tolerance."-which roughly translates to "lose weight and do more or get diabetes in the future."
Either way, I wouldn't get to hung up, it doesn't sound like you're too ill, keep us posted
