A 66-Year-Old Right-Handed Man Is Brought to the ER with Left-Sided

A 66-year-old right-handed man is brought to the ER with left-sided numbness and weakness. The patient awoke with clumsiness in his left hand, which quickly developed to significant left-sided weakness, impacting his left arm more than his left leg. He has hypertension and has smoked a pack of cigarettes every day for the past 40 years. The blood pressure is 175/90 mm Hg, and the pulse rate is 82 bpm. A neurologic evaluation indicates poor touch discrimination in the left arm, as well as left facial weakness sparing the forehead, 2/5 muscle strength in the left upper limb and 4/5 muscular strength in the left bottom limb. Examinations of right-sided strength and visual field are normal. Which of the following indicated arteries in this patient is most likely occluded?

A) A
B) B
C) C
D) D
E) E
F) F
G) G
H) H
I) I
J) J

Correct Answer:

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