A 66-Year-Old Man Comes to the Office Due to Progressive

question 122

Multiple Choice

A 66-year-old man comes to the office due to progressive vision impairment over the last year that has begun to affect his ability to drive.  He has difficulty reading road signs at night and reports excessive glare from the headlights of oncoming cars.  The patient has a long history of hypertension and type 2 diabetes mellitus.  Funduscopy reveals a diminished red reflex bilaterally with obscuration of retinal detail.  It is determined that the patient's condition is in part due to intracellular accumulation of sorbitol.  In healthy cells, this sugar alcohol is normally metabolized into which of the following substances to facilitate excretion?

• A)Fructose
• B)Galactitol
• C)Galactose
• D)Glucose
• E)Xylulose

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Definitions:

Confidence Interval

An estimated range of values calculated from a sample that is likely to cover the true population parameter with a certain level of confidence.

Population Variance

A measure of the dispersion or spread of a set of data points in a population, quantifying how much the members of a population differ from the population mean.

Applicants' Grades

The numerical or letter academic performance indicators provided by educational institutions for students.

Confidence Estimate

A range or interval of values derived from sample data that is likely to contain the true value of a population parameter with a specified level of certainty.