BIO 326 Assignment 10.1: Disorders of Blood Pressure Regulation Case Study

BIO 326 Assignment 10.1: Disorders of Blood Pressure Regulation Case Study

BIO 326 Assignment 10.1: Disorders of Blood Pressure Regulation Case Study

Introduction

Complete the Leon Case Study

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Leon Case Study Alternative Version

Assignment Guidelines

You may also submit your completed work using the Leon Case Study (Word) document. Please make sure to include your name on your case study submission.

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Submission

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Week 10: Cardiovascular Dysfunction

Welcome to Week 10. This week’s material covers cardiovascular disorders. The material in Chapters 26 and 28 cover disorders of blood flow in the systemic circulation and disorders of cardiac conduction and rhythm, respectively. Chapter 27 covers two additional sets of material on disorders of disorders of cardiac function, and heart failure and circulatory shock. You should pay attention to the development of specific cardiac dysfunction in each set of material, as well as the resultant effects on the body of such disorders. Hypertension, coronary artery disease, MI, cardiomyopathies, arrhythmias, and the effects of valvular dysfunction on cardiac function are covered in detail.

Lesson 1: Disorders of Blood Pressure Regulation

Lesson 1: Disorders of Blood Pressure Regulation

The material in the Disorders of Blood Pressure Regulation presentation is primarily about hypertension, in light of the cardiovascular consequences of this disease (although additional content is presented).

Learning Outcomes

At the end of this lesson, you will be able to:

Hypertension

Define hypertension and relate it to normal physiology

Delineate the four stages of hypertension development by describing the systolic and diastolic pressures in each stage

Define the term “volume-loading hypertension” that is caused by renal impairment

Describe how primary aldosteronism can also lead to a volume loading hypertension

Understand how secondary hypertension is caused by a number of pathophysiological conditions. Understand in each case how the condition results in volume-loading hypertension and vasoconstriction

Describe the primary causative factors for primary hypertension and how lifestyle affects the development of hypertension

Hypotension

Describe the causative factors that lead to blood pressure decreases in orthostatic hypotension

Before attempting to complete your learning activities for this week, review the following learning materials:

Learning Materials

Read the following in your Porth’s Pathophysiology: Concepts of Altered Health States textbook:

Chapter 26, “Disorders of Blood Flow and Blood Pressure Regulation”

Leon Case Study

Leon is an African American 55-year-old male. He is a non-smoker, is a nondrinker, and has a healthy weight for his height. On weekends, he coaches a youth baseball team in his community and loves to eat hot dogs and nachos with the children after they play. Leon attends a community health clinic to have a routine urinalysis and blood pressure monitoring. At his last visit, his blood pressure was 168/92 mm Hg. Although Leon was pleased that the lower number had dropped from 96 to 92, his physician was still concerned. He warned Leon about the dietary choices he was making and reminded him to limit his salt intake. He also renewed Leon’s prescription for diuretics and added an ACE inhibitor to Leon’s treatment regime.

Student Name:

Speculate how Leon’s ethnicity contributes to his hypertension. What other determinants of health contribute to the prevalence of hypertensive disease in this population?

What is the significance of an elevated systolic pressure, even in the absence of diastolic hypertension?

What is the mechanism of action of the two classes of drugs Leon was prescribed for the management of his hypertension?