Although orthostatic hypotension has many causes, in the elderlyit can be due to age-related decreases in neural and cardiovascular responses. Decreased fluid intake while feeling ill and sweating due to a fever can result in dehydration. Dehydration candecrease blood volume and lower blood pressure, increasing thelikelihood of orthostatic hypotension.a. Describe the normal response to a decrease in blood pressureon standing.b. What happened to Molly’s heart rate just before she fainted?Why did Molly faint?c. How did Molly’s fainting and falling to the floor help establishhomeostasis (assuming she was not injured)?

Although orthostatic hypotension has many causes, in the elderlyit can be due to age-related decreases in neural and cardiovascular responses. Decreased fluid intake while feeling ill and sweating due to a fever can result in dehydration. Dehydration candecrease blood volume and lower blood pressure, increasing thelikelihood of orthostatic hypotension.a. Describe the normal response to a decrease in blood pressureon standing.b. What happened to Molly’s heart rate just before she fainted?Why did Molly faint?c. How did Molly’s fainting and falling to the floor help establishhomeostasis (assuming she was not injured)?

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter13: The Respiratory System

Section13.4: Gas Transport

Problem 2CYU

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