Why would ethanol show up in a blood test if a person had not been drinking alcohol in many years. What are other reasons for showing ethanol?
There are some situations when ethanol-like compounds can be present in the blood stream:
[...] exposure to hand sanitizers, after shave lotions, perfumes, medications, hygiene products, cosmetics, foods [...] Uncontrolled diabetes mellitus can cause false positive alcohol tests.
Source: Dr. Kokil Mathur. Answer on: False-Positives for blood alcohol content. Available from MedHelp forums.
Other causes as pointed on eHow.com:
- low calorie diets
- gasoline, paints, lacquers
- lower hematocrit values
- diabetes mellitus