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.
How long does a colonoscopy take is usually around 30 minutes, but the span may extend if polyp is discovered and removed. Before the start of operation the patient is provided with painkilling drug (Normally via vein) to make the patient comfortable and drowsy in-between the operation.