ABPN Neurological Examination and Conditions 4

Question 1

Ascending symmetric weakness with areflexia developing over days after a viral illness is most consistent with:

Accepted Answer

Guillain-Barré syndrome

Answer

Guillain-Barré syndrome typically presents as an acute ascending flaccid paralysis with loss of reflexes following an infection.

Question 2

Fatigable ptosis and diplopia that worsen with sustained upward gaze are hallmark signs of:

Accepted Answer

Myasthenia gravis

Answer

Myasthenia gravis causes fluctuating, fatigable weakness of ocular and other muscles due to antibodies against acetylcholine receptors.

Question 3

The dermatome that covers the nipple line is:

Accepted Answer

T4

Answer

The T4 dermatome corresponds to the level of the nipples.

Question 4

A lesion causing loss of pain and temperature on one side of the body indicates damage to which tract?

Accepted Answer

Spinothalamic tract

Answer

Pain and temperature sensation travel via the spinothalamic tract, which crosses near its level of entry.

Question 5

In Weber's tuning fork test, sound lateralizing to the affected ear suggests:

Accepted Answer

Conductive hearing loss in that ear

Answer

Weber lateralizes to the ear with conductive loss (or away from the sensorineural-loss ear).

American Board of Psychiatry and Neurology Practice Test