Geriatric Medicine Physiologic Changes Associated with Aging: Review Questions Walter A. Ceranski, MDS Dr. Ceranski is a Staff Physician and the Director of Geriatric Education, Department of Geriatrics and Extended Care, Carl T. Hayden VA Medical Center, Phoenix, AZ. Choose the single best answer for each question.
	1. Which of the following results of a physiologic change associated with aging is most likely to cause an elderly person to drive at a slow, steady rate of speed during both day and night? Cataracts Dilated pupils Macular degeneration Memory loss Stiffening of the lens Click here to compare your answer. 2. Which of the following results of a physiologic change associated with aging is most likely to cause an elderly person who is driving to decelerate when approaching a green light on a dark road? Glaucoma Macular degeneration Memory loss Stiffening of the lens Yellowing of the cornea and lens Click here to compare your answer.		3. An increase in which of the following is a physiologic change known to be associated with aging? Amount of sleep required Extracellular fluid volume Hepatic blood flow Size of alveolar ducts in the lungs Subcutaneous fat as a percentage of total body mas Click here to compare your answer. 4. Which of the following is the most common cause of legal blindness in persons in the United States who become legally blind after age 65 years? Cataracts Diabetic retinopathy Glaucoma Hypertensive retinopathy Macular degeneration Click here to compare your answer.
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