Science
Structure and Function of the Kidney

pathophysiology

Kaplan

Question Description

Structure and Function of the Kidney

Rivka is an active 21-year-old who decided to take a day off from her university classes. The weather was hot and the sun bright, so she decided to go down to the beach. When she arrived, she found a few people playing beach volleyball, and they asked if she wanted to join in. She put down her school bag and began to play. The others were well prepared for their day out and stopped throughout the game to have their power drinks and soda pop. Several hours after they began to play, however, Rivka was not feeling so good. She stopped sweating and was feeling dizzy. One player noted she had not taken a washroom break at all during the day. They found a shaded area for her, and one of the players shared his power drink with her. Rivka was thirstier than she realized and quickly finished the drink.

  1. In pronounced dehydration, hypotension can occur. How would this affect the glomerular filtration rate of the kidney? What actions by the juxtaglomerular apparatus would occur to restore GFR?
  2. What is the effect aldosterone has on the distal convoluted tubule? Why would the actions of aldosterone be useful to Rivka in her situation?
  3. What does a specific gravity test measure? If someone tested the specific gravity of Rivka’s urine, what might it indicate?
  4. Select one of the case studies below, and include discussion of your strategy for winning the patients cooperation while teaching concepts concerning pathological states to them and their families.
  5. Requirements
    1. Make sure all of the topics in the case study have been addressed.
    2. Cite at least three sources; journal articles, textbooks or evidenced-based websites to support the content.
    3. All sources must be within five years.
    4. Do not use .com, Wikipedia, or up-to-date, etc., for your sources.

Final Answer

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Running head: STRUCTURE AND FUNCTION OF THE KIDNEY

Structure and Function of the Kidney
Name
Institutional Affiliation

1

Structure and Function of the Kidney

2

In pronounced dehydration, hypotension can occur. How would this affect the glomerular
filtration rate of the kidney? What actions by the juxtaglomerular apparatus would occur
to restore GFR?
Hypotension occurs as a result of numerous factors. Among these factors is excessive
exercise and being out in the sun for prolonged durations. This type of hypotension is referred to
as orthostatic hypotension. Dehydration is the leading cause of this type of hypotension whereby
the patient loses more water through sweating than they take in leading to low blood pressure
(Aprile et al., 2016). The case study states that Rivka was unprepared for the kind of physical
exercises beach volleyball required. It also states that while the other players "stopped
throughout the game to have their power drinks and soda pop" but she didn't.
Exercise affects renal hemodynamics in a profound way whereby renal plasma flow falls
remarkably during this period. Thi...

EinsteintheProf (21055)
Boston College

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