Should I be worried? Glucose & EGFR results

Hi,

I recently had a huge amount of blood work completed and my results are in. Everything in my CBC, Hemoglobinopathy came back great - but my Metobalic testing shows that my Glucose is 104 which was high and my EGFR was 58 L. 

This is how it was listed:

UREA NITROGEN, SERUM                       12

CREATININE, SERUM                             1.2

EGFR                                                                58L

Everything else is normal - should I be worried? Here is a little bit about me: I am 27 y/o female 5'5" and 124. I have a 15-16% body fat, athletic, and eat a healthy diet. On the day of the testing I had little/nothing to eat. Please tell me if I should be overly worred about my kidneys or diabeties.

Here are some of the other results under it which were in normal range incase you need them:

BUN/CREATININE RATIO                       10.0

SODIUM, SERUM                                 140

POTASSIAM SERUM                             4.2

CHLORIDE, SERUM                               102

CARBON DIOXIDE                                 26

CALCIUM, SERUM                                9.5

PROTEIN, SERUM                                 7.5

ALBUMIN, SERUM                                 4.7

GLOBULIN                                           2.8

A/G RATIO                                          1.7

BILIRUBIN, TOTAL                                0.7

ALKALINE PHOSPHATASE                       63

AST (SGOT)                                        19

ALT  (SGPT)                                        16