A complete testing panels may be required to screening the reasons why cholesterol and glucose raise together, these are results from several conditions may be due to Diabetic mellitus, nephritic syndromes, cardiovascular diseases, or just a high fatty nutrition but it sounds not likely happen so high like that.
The following is the complete test results of a patient of my audience who suffering from sever hyperglycemia and his fatty nutrition is not high.
Personal information:
Male have 43 years old and no history of hyperglycemia, came to the lab to order blood and urine testing to screening some sign and symptoms including repeated urination and with pain, white patches on the surface of tongue as well as he feel thirsty and hungry after short time especially at night, sometimes wake up with pain in his body especially terminals.
The lab doctor recommend him to test blood for glucose, cholesterol, triglyceride, HDL, LDL, and urine examination.
And the test results came as following:
Diabetic profile:
Random blood glucose: 470
Glucose in urine: (++++)
Ketone in urine: NIL
Lipid profile tests: 
Cholesterol 310
Triglyceride 205
HDL 75
LDL 194
Complete urine Analysis:
Color: Yellow
Aspect: slightly turbid
Reaction: Acidic
Protein: (+)
Glucose: (++++)
Acetone: NIL
Bilirubin: NIL
Urobilinogen: NIL
Pus Cells: 8 – 10
RBC' cells: 4 – 6
Casts: Hayline cast
Epithelial cells: (+)
The medical lab interpretation for such case:
First the Glucose is high while the normal level of glucose in the blood should not exceed 150 mg/dl after a period of 2 – 5 hours after having a meal, this condition is hyperglycemia for a patient may be suffering from diabetic mellitus the type two "insulin independent ", because the urine have not any ketone bodies.
Second the cholesterol normal level is 180 mg/dl according to last WHO specs, triglyceride normal level is 150 mg/dl for healthy people, HDL good controlled will be a number between 35 – 65 mg/dl but more raise is the better, normal level of LDL should not reach the limit of 150 mg/dl.
After comparing the normal levels of fats in blood and the results of the patient we can see that the cholesterol is high and counts multiple the upper normal limit, triglyceride is high, HDL is better to be high but LDL is in the risk zone.
Urine analysis influence the blood results, contains glucose excess due to high level of glucose in the blood and proteinuria with a little high count of red blood cells and pus cells which may be due to inflammation of urinary tract due to bacterial infection or because hyperglycemia syndrome, urine also contain hyaline cast which may be a result of hypertension.
The patient condition may be hyperglycemia due to diabetic mellitus of type two which is insulin independent and the high level of cholesterol, triglyceride and other lipoproteins increasing the risk of dangerous effect of hyperglycemia and may be the high fats in the blood is the main reason behind high glucose levels from the beginning.
The patient after receiving results recommended to go to a gastrointestinal specialist physician to have his body physically examined and additional test may be done after as Hemoglobin A1C which predict the level of glucose in the last three months.
GI physician advice thee patient to eat amounts of fatty foods to avoid raise in fats in the blood then the glucose may peak again, and HBA1C test is requested by doctor, also pharmaceutical medications as glycophage and glimperide contain medication to lower the level of glucose by help the cells of the body have the highest intake of glucose.
