SFST

Question 1

THE SIX TESTS

Answer 1

• ONE LEG STAND
• FINGER TO NOSE
• FINGER COUNT
• WALK AND TURN
• TRACING
• NYSTAGMUS

Question 2

WHAT IS THE NAME OF THE NYSTAGMUS WE USE

Answer 2

HORIZONTAL GAZE NYSTAGMUS

Question 3

3 SFST TESTS

Answer 3

• HGN: HORIZONTAL GAZE NYSTAGMUS
• WAT: WALK AND TURN
• OLS: ONE LEG STAND

Question 4

HGN (HORIZONTAL GAZE NYSTAGMUS)

Answer 4

INVOLENTARY JERKING OF THE EYES, OCCURING AS EYES GAZE TO THE SIDE
(COULD ALSO INCLUDE DRUGS ON BOARD AS WELL)

Question 5

CATEGORIES OF NYSTAGMUS

Answer 5

• VESTIBULAR
• NEURAL
• PATHOLOGICAL DISORDERS AND DISEASES

Question 6

VESTIBULAR NYSTAGMUS

Answer 6

• ROTATIONAL
• POST ROTATIONAL
• CALORIC
• POSITIONAL ALCOHOL NYSTAGMUS

Question 7

NEURAL NYSTAGMUS (3)

Answer 7

• OPTOKINETIC
• PHYSIOLOGICAL
• GAZE

Question 8

GAZE NYSTAGMUS (3)

Answer 8

• HORIZONTAL
• VERTICAL
• RESTING

Question 10

VIRTICAL GAZE NYSTAGMUS

Answer 10

INVOLENTARY JERKING OF THE EYES UP AND DOWN

Question 11

RESTING NYSTAGMUS

Answer 11

JERKING OF THE EYES AS THEY LOOK STRAIGHT AHEAD

Question 12

PATHALOGICAL DISORDER NYSTAGMUS

Answer 12

• BRAIN TUMORS AND OTHER BRAIN DAMAGE
• SOME INNER EAR DISEASES
• RARE IN THE DRIVING POPULATION

Question 13

MEDIAL CONDITIONS

Answer 13

• EQUAL PUPIL SIZE
• RESTING NYSTAGMUS
• EQUAL TRACKING
• SYMPTOMS MAY MIMIC ALOHOL IN THE SYSTEM

Question 14

3 CUES OF HGN

Answer 14

• LACK OF SMOOTH PERSUIT
• DISTINCT AND SUSTAINED NYSTAGMUS AT MAXIMUM DEVIATION
• ONSET OF NYSTAGMUS PRIOR TO 45 DEGREES

Question 15

HGN PROCEDURE

Answer 15

1 - CHECK FOR EYEGLASSES
2 - VERBAL INSTRUCTIONS
3 - POSITION STIMULUS
4 - EQUAL PUPIL SIZE AND RESTING NYSTAGMUS
5 - EQUAL TRACKING
6 - LACK OF SMOOTH PERSUIT
7 - CHECK FOR DISTINCT AND SUSTAINED NYSTAGMUS AT MAX DEVIATION
8 - CHECK FOR ONSET OF NYSTAGMUS PRIOR TO 45 DEGREES
9 - TOTAL THE CUES
10 - CHECK FRO VGN

Question 16

HOW MANY CUES INDICATE ABOVE A 0.08

Answer 16

4 OR MORE CUES

Question 17

WAT PROCEDURE

Answer 17

1 - HEEL-TO-TOE STANCE
2 - ARMS DOWN AT SIDES
3 - DONT START UNTIL TOLD
4 - 9 HEEL-TO-TOE STEPS, TURN, 9 HEEL-TO-TOE STEPS

Question 18

WAT TEST CLUES

Answer 18

• CANNOT KEEP BALANCE WHILE LISTENING TO INSTRUCTION
• STARTS BEFORE BEING TOLD TO
• STOPS WHILE WALKING
• DOES NOT TOUCH HEEL-TO-TOE FULLY
• STEPS OFF THE LINE (SHOES MUST BE IN LINE WITH ONE ANOTHER)
• USES ARMS TO BALANCE
• IMPROPER TURN
• INCORRECT NUMBER OF STEPS

Question 19

WAT TEST CRITERA FOR BAC AND CLUES

Answer 19

2 OR MORE CLUES INDICATES BAC AT OR ABOVE 0.08

Question 20

OLS (ONE LEG STAND)

Answer 20

DIVIDED ATTENTION TEST, MENTAL TASK, AND PHYSICAL TASK

Question 21

OLS INSTRUCTIONS

Answer 21

1 - STAND STRAIGHT, FEET TOGETHER
2 - KEEP ARMS AT SIDES
3 - MAINTAIN POSITION UNTIL TOLD OTHERWISE
4 - RAISE EITHER LEG
5 - KEEP FOOT RAISED APPROXIAMTELY 6 INCHES OFF GROUND, PARALLEL TO THE GROUND
6 - KEEP BOTH LEGS STRAIGHT AND ARMS AT YOUR SIDE
7 - KEEP EYES ON RAISED FOOT
8 - COUNT OUT LOUD “ONE ONETHOUSAND ONE….” ETC UNTIL TOLD TO STOP
- IT IS A 30 SECOND TIMER

Question 22

OLS TEST CLUES

Answer 22

• SWAYS WHILE BALANCING (ANYTHING NOTICABLE THAT IS OVER THE TOP)
• USES ARMS FOR BALANCE
• HOPPING
• PUTS FOOT DOWN

Question 23

OLS TEST CRITERIA FOR BAC AND CLUES

Answer 23

2 OR MORE CLUES INDICATES A BAC AT OR ABOVE 0.08