Question

what is blood alcohol measured with?
intoxilyzer
blood pressure
urine sample
physical test

Explanation:

The Intoxilyzer is a device specifically designed to measure blood alcohol content. Blood pressure measures the force of blood against artery walls. A urine sample can detect substances but not directly measure blood alcohol in the same way as an Intoxilyzer. A physical test assesses motor skills etc. but not a direct measurement of blood alcohol.

Answer:

Intoxilyzer