Neurological Diagnosis: Dorsal Columns

Question 1

Joint Position Sense of the Upper Extremity

Answer 1

Inabiity to identify if their finger is up or down

Indicates: Lesion of the dorsal columns

Question 2

Joint Position Sense of the Lower Extremity

Answer 2

Inability to identify if their toe is pointed up or down

Indicates: Lesion of the dorsal columns

Question 3

Pallesthesia of the Upper Extremity

Answer 3

128 Hz tuning fork

Inability to identify when they feel the vibrations and when it has stopped on the middle 3 finger distal interphalangeal joint

Indicates: Lesion of the dorsal coumns

Question 4

Pallesthesia of the Lower Extremity

Answer 4

128 Hz tuning fork

Inability to identify when they feel the vibrations and when it has stopped on the 3 middle toes distal interphalangeal joints

Indicates: Lesion of the dorsal columns

Question 5

Romberg’s Test

Answer 5

Swaying or falling

Indicates: Lesion of the dorsal columns

Question 6

2-Point Discrimination

Answer 6

Inability to determine the smallest area in which two points can be separately perceived

Indicates: Lesion of the somatosensory cortex or dorsal column medial lemniscus

Question 7

Light Touch

Answer 7

Inability to identify when they are being touched with a cotton swab or brush

Indicates: Lesion of the dorsal columns