OSF Saint Elizabeth Medical Center

Ottawa, Illinois


How to prepare for your lab test


  • Please notify a staff member if you have a latex allergy or feel faint.
  • Because testing differs for each patient, ask your physician for instructions on how to prepare for your lab work.
  • Fasting is frequently necessary before having blood drawn. Commonly ordered fasting tests include fasting blood glucose (fast for six to eight hours); lipids including cholesterol, triglycerides and HDL (fast for 12 to 14 hours); gastrin (fast for 12 hours); folate (fast for 12 hours).

Getting your results

If you have signed up for an OSF MyChart account you can view your laboratory test results online.  Your physician will also have access to the same data and will utilize it to help diagnose your condition and determine a plan for treatment.