Wash hands with soap and water before finger prick
The speaker highlights that even a small amount of juice from cutting fruit can drastically alter the reading, calling it 'pseudohypoglycemia.' He insists on soap and water rather than a quick rinse, and emphasizes drying the hands completely before testing. This simple step is often overlooked but can lead to misdiagnosis or incorrect insulin dosing.
Sugars from fruit, candy, or other residues dissolve into the blood sample, artificially raising the glucose concentration measured by the meter, which is calibrated for blood alone.
If you're eating some fruit and you cut some fruit and you get some juice on your fingers and that mixes with the blood sugar... it's called pseudohypoglycemia.

