Which of the following describes a breathalyzer test?

A breathalyzer test is specifically designed to analyze breath for alcohol content. This device works by measuring the concentration of alcohol in an individual's breath, which correlates with the blood alcohol content (BAC) in their body. When a person exhales into the breathalyzer, the device uses various chemical reactions or infrared spectroscopy to determine the alcohol level present. This makes it a widely used tool for law enforcement and other agencies to assess whether a person is under the influence of alcohol while driving or operating machinery.

The other options do not accurately describe what a breathalyzer test does. Measuring blood pressure pertains to cardiovascular health rather than alcohol detection. Collecting urine specimens involves different methodologies and devices not related to breath analysis. Similarly, psychological evaluation tools assess mental health rather than physiological measures like alcohol content. Understanding these distinctions clarifies why the breathalyzer test is uniquely defined as a device for analyzing breath for alcohol levels.