By entering the coding or chip into the glucose meter, the meter will be calibrated to that batch of test strips. However, if this process is carried out incorrectly, the meter reading can be up to 4 mmol/L (72 mg/dL) inaccurate.
If you're having keyhole surgery (laparoscopy), the endoscope will be inserted into a small incision your surgeon makes in your skin. An endoscopy usually takes between 15 and 60 minutes, depending on what it's being used for.
The Colonoscopy. The procedure itself can be as short as 15 minutes or can take up to an hour, depending on what your doctor finds. A clear, clean colon with no growth or polyps can be examined quickly. In other cases, the doctor may need to remove polyps or take tissue samples for further testing.