QuestionFebruary 2, 2026

topic content) The task begins with the initial prompt which was sent to the Assistant: An 81 year old woman is taken to the hospital after breaking her wrist in a fall. Her son reports that the woman bumped into a coffee table and then tripped on the corner of a couch, and broke her wrist when bracing herself in her fall. The elderly woman initially claimed that she was fine, but her son grew alarmed when he noticed severe swelling and discoloration of his mother's hand and wrist. The ER physician conducted confrontation visual-field testing and found left lower quadrant quadra intanopia. The physician then applied simultaneous tactile stimulation bilaterally , but the patient was only able to correctly identify right-side sensation. The woman is otherwise lucid and proprioception is present. Which of the following is the physician's most likely initial diagnosis? A) A lesion of the right parietal lobe B) A lesion of the left parietal lobe C) A lesion of the right frontal lobe D) A lesion of the left frontal lobe E) Hemisensory loss consequent to a concussion resulting from the fall F) Déjerine-Roussy syndrome G) Cardioembolic Shower 1 day

topic content) The task begins with the initial prompt which was sent to the Assistant: An 81 year old woman is taken to the hospital after breaking her wrist in a fall. Her son reports that the woman bumped into a coffee table and then tripped on the corner of a couch, and broke her wrist when bracing herself in her fall. The elderly woman initially claimed that she was fine, but her son grew alarmed when he noticed severe swelling and discoloration of his mother's hand and wrist. The ER physician conducted confrontation visual-field testing and found left lower quadrant quadra intanopia. The physician then applied simultaneous tactile stimulation bilaterally , but the patient was only able to correctly identify right-side sensation. The woman is otherwise lucid and proprioception is present. Which of the following is the physician's most likely initial diagnosis? A) A lesion of the right parietal lobe B) A lesion of the left parietal lobe C) A lesion of the right frontal lobe D) A lesion of the left frontal lobe E) Hemisensory loss consequent to a concussion resulting from the fall F) Déjerine-Roussy syndrome G) Cardioembolic Shower 1 day
topic content)
The task begins with the initial prompt which
was sent to the Assistant:
An 81 year old woman is taken to the
hospital after breaking her wrist in a
fall. Her son reports that the woman
bumped into a coffee table and then
tripped on the corner of a couch, and
broke her wrist when bracing herself
in her fall. The elderly woman initially
claimed that she was fine, but her son
grew alarmed when he noticed severe
swelling and discoloration of his
mother's hand and wrist.
The ER physician conducted
confrontation visual-field testing and
found left lower quadrant
quadra intanopia. The physician then
applied simultaneous tactile
stimulation bilaterally , but the patient
was only able to correctly identify
right-side sensation. The woman is
otherwise lucid and proprioception is
present.
Which of the following is the
physician's most likely initial
diagnosis?
A) A lesion of the right parietal lobe
B) A lesion of the left parietal lobe
C) A lesion of the right frontal lobe
D) A lesion of the left frontal lobe
E) Hemisensory loss consequent to a
concussion resulting from the fall
F) Déjerine-Roussy syndrome
G) Cardioembolic Shower
1 day

Solution
4.5(263 votes)

Answer

A) A lesion of the right parietal lobe Explanation 1. Analyze Visual-Field Defect Left lower quadrant quadrantanopia suggests a lesion in the right parietal or temporal lobe affecting the optic radiation. 2. Evaluate Tactile Stimulation Results Inability to identify left-side sensation during bilateral stimulation indicates right parietal lobe involvement (contralateral neglect). 3. Correlate Symptoms with Brain Lesion Right parietal lobe lesions can cause left-sided neglect and visual field defects.

Explanation

1. Analyze Visual-Field Defect<br /> Left lower quadrant quadrantanopia suggests a lesion in the right parietal or temporal lobe affecting the optic radiation.<br /><br />2. Evaluate Tactile Stimulation Results<br /> Inability to identify left-side sensation during bilateral stimulation indicates right parietal lobe involvement (contralateral neglect).<br /><br />3. Correlate Symptoms with Brain Lesion<br /> Right parietal lobe lesions can cause left-sided neglect and visual field defects.
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