NHTSA SFST Practical Exam Questions With 100- Verified Answers.docx

NHTSA SFST Practical Exam
Questions With 100% Verified Answers
Horizontal Gaze Nystagmus (HGN) (Verbal Instructions) -
Correct Answer ✅- put feet together, hands on the chin
- keep head still
- look at the tip of my finger
- follow movement of the finger with your eyes only
- keep looking at my finger until told the test is over


Horizontal Gaze Nystagmus (Pre Test) -
Correct Answer ✅- start on left eye
- 2 seconds out and in


Check for


- equal pupil size
- resting nystagmus
- equal tracking


Put finger down, ask "are you okay?"

, NHTSA SFST Practical Exam
Questions With 100% Verified Answers
Horizontal Gaze Nystagmus Test -
Correct Answer ✅Lack of smooth pursuit - left eye, 2 seconds in
and out looking at finger, (2) times


Distinct and sustained nystagmus at maximum deviation - 5 Second
hold, (2) times, stop


Onset of nystagmus prior to 45 Degrees - start in center, 4 second
pace to 45 degrees, stop and hold when you see nystagmus, back to
center


Vertical Gaze Nystagmus - turn finger sideways in the center, move
up till eyebrows move, stop, and hold 5 seconds, back down eye
level


Walk and Talk (Instruction Stage) -
Correct Answer ✅- place your left foot on the line (real or
imaginary)
- place your right foot on the line ahead of your left foot, with the
heel of your right foot touching your toes of the left foot.
- place your arms down at your sides