BAT Chain of Custody Documentation 4

Question 1

Which scenario represents a chain of custody violation in breath alcohol testing?

Accepted Answer

The BAT leaves the completed form unattended and accessible to unauthorized persons

Answer

Leaving completed forms accessible to unauthorized individuals breaks chain of custody and compromises the confidentiality and integrity of records.

Question 2

On the DOT breath alcohol testing form, the alcohol reading is recorded as:

Accepted Answer

A decimal concentration (e.g., 0.080)

Answer

The result is recorded as a decimal alcohol concentration (BAC) such as 0.080, not as a percentage or pass/fail.

Question 3

If a BAT is also the subject's direct supervisor, what is the preferred documentation practice?

Accepted Answer

Another qualified BAT should perform and document the test if possible

Answer

To avoid conflicts of interest, DOT guidance recommends that a different qualified BAT perform and document the test when the BAT is the subject's direct supervisor.

Question 4

When a breath alcohol test result shows 0.02–0.039 BAC, what documentation step is required next?

Accepted Answer

Document result and require a confirmatory test at least 15 minutes later

Answer

A result of 0.02–0.039 requires the BAT to document the screening result and then conduct a confirmatory test no sooner than 15 minutes later.

Question 5

What information must be documented if a subject provides an insufficient breath sample during testing?

Accepted Answer

The number of attempts, the BAT's observation of the subject's effort, and the referral for a medical evaluation

Answer

When an insufficient sample occurs, the BAT must document the number of attempts, observations about effort, and refer the subject for a medical evaluation per DOT rules.

(BAT) Breath Alcohol Technician Certified Practice Test

(BAT) Breath Alcohol Technician Certified Practice Test

BAT Chain of Custody Documentation 4