Cloudy urine can be caused by a variety of conditions, including vaginal discharge, sexually transmitted diseases, dehydration, certain autoimmune disorders, as well as infection, inflammation, or other conditions of the urinary tract (kidneys, ureters, bladder and urethra).loudy urine can be caused by a variety of conditions, including vaginal discharge, sexually transmitted diseases, dehydration, certain autoimmune disorders, as well as infection, inflammation, or other conditions of the urinary tract (kidneys, ureters, bladder and urethra).
Blood cholesterol, triglyceride and glucose levels are the most common tests that require fasting. Vitamin levels, such as vitamin E or A, also need to be drawn when the patient is fasting. Typically at least a 12-hour fast is required for cholesterol and triglyceride screenings.
Patient Information: Fasting Blood Tests. If your doctor orders a fasting blood test, you should not have anything to eat or drink for 12 hours before you go to the laboratory to have your blood taken. Some examples of fasting blood tests are fasting glucose, fasting triglycerides, fasting lipids and glucose tolerance.atient Information: Fasting Blood Tests. If your doctor orders a fasting blood test, you should not have anything to eat or drink for 12 hours before you go to the laboratory to have your blood taken. Some examples of fasting blood tests are fasting glucose, fasting triglycerides, fasting lipids and glucose tolerance.