A 55-Year-Old Man with Poorly Controlled Hypertension and Type 2

question 15

Multiple Choice

A 55-year-old man with poorly controlled hypertension and type 2 diabetes mellitus comes to the emergency department due to difficulty seeing.  He has had blurry vision for the last 2 weeks, and 1 day ago he suddenly noticed a shadow develop across the visual field of his left eye.  The patient has no recent headache, double vision, vertigo, light sensitivity, or nausea.  On examination, pupils are equal and reactive to light.  There is an area of reduced vision in the left eye.  Funduscopic examination reveals a flame-shaped hemorrhage in the left temporal hemiretina.  The transmission of visual information through which of the following neural structures will be disrupted?

• A)Left inferior colliculus
• B)Left lateral geniculate body
• C)Left medial geniculate body
• D)Medial optic chiasm
• E)Right inferior colliculus
• F)Right lateral geniculate body
• G)Right medial geniculate body

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Definitions:

Practical Side

The aspect of a situation, problem, or decision that relates to actual experience or to the practicalities of implementing something.

Control Processes

The methods and techniques used to regulate, guide, and manage operations, systems, or mechanisms.

Emotional Regulation

The ability to effectively manage and respond to an emotional experience, including how one expresses or suppresses emotions.

Selective Attention

The cognitive process of focusing on a particular object or task for a period of time while ignoring irrelevant information that is also occurring.