How many times must a subject pivot during the Walk-and-Turn test?

In the Walk-and-Turn test, the subject must pivot once at the end of the line before returning to their starting point. This pivot is critical as it helps assess the subject's balance and coordination, which are affected by alcohol consumption. The execution of the pivot is also a part of the overall assessment of the subject’s ability to follow instructions and maintain composure throughout the test.

The test is designed in a way that requires the subject to walk heel-to-toe in a straight line, and this single pivot demonstrates their ability to execute a turn without losing balance. The pivot itself is a point where the subject's stability can be further evaluated; if they struggle or fail to perform it correctly, it may indicate impairment.