32 Chapter 36Cardiac Disorders ________________________________________________________________
Introduction to Medical-Surgical Nursing, 6th ed.
LESSON 36.4
Slide 58
Infective Endocarditis (cont.)
Pathophysiology
Pathogens, usually bacteria, enter the bloodstream by any of the previously
mentioned means
The pathogen accumulates on the heart valves and/or the endocardium and forms
vegetations
Slide 59
Infective Endocarditis (cont.)
Complications
Heart failure and embolization
Signs and symptoms
Fever, chills, malaise, fatigue, and weight loss
Chest or abdominal pain; may indicate embolization
Petechiae inside the mouth and on the ankles, feet, and antecubital areas
Slide 60
Infective Endocarditis (cont.)
Medical diagnosis
History, physical examination, results of lab studies
Echocardiography
Serial blood cultures; elevated WBC
TALKING POINTS:
A history of recent dental or surgical procedures may precede IE.
9
Slide 61
edema), and embolization
Infective Endocarditis (cont.)
Assessment
Review patient’s history for risk factors, recent invasive procedures, pathologic
cardiac conditions, and onset of symptoms
Slide 62
Infective Endocarditis (cont.)
Interventions
Administer prescribed antibiotics
Assess cardiac output and monitor for complications
_______________________________________________________________ Chapter 36Cardiac Disorders 33
Introduction to Medical-Surgical Nursing, 6th ed.
LESSON 36.4
7
Slide 63
Pericarditis
Cause and risk factors
Inflammation of the pericardium
May be primary disease or associated with another inflammatory process
The disease may be acute or chronic
Acute pericarditis caused by viruses, bacteria, fungi, chemotherapy, or AMI
(Dressler syndrome)
Chronic pericarditis caused by tuberculosis, radiation, or metastases
Slide 64
Pericarditis (cont.)
Pathophysiology
In acute pericarditis, inflammatory process increases amount of pericardial fluid and
inflammation of the pericardial membranes
Slide 65
Pericarditis (cont.)
Complications
Pericardial effusion or accumulation of fluid in the pericardial space
May lead to cardiac tamponade
Signs and symptoms
Chest pain
Most severe on inspiration
Slide 66
Pericarditis (cont.)
Medical diagnosis
Serial ECGs
Echocardiogram
Creatine kinase-MB fraction (CK-MB)
Blood cultures
Medical treatment
TALKING POINTS:
How can you differentiate the pain of pericarditis with that of angina?
34 Chapter 36Cardiac Disorders ________________________________________________________________
Introduction to Medical-Surgical Nursing, 6th ed.
LESSON 36.4
9
Slide 67
Pericarditis (cont.)
Assessment
Assessment of heart sounds especially important
Interventions
Rest and reduction of activity
7
Slide 68
Valvular Disease
If valves damaged, blood no longer flows in one direction
Stenosis is narrowing of the valve opening, limiting the amount of blood ejected from one
chamber to the next
Slide 69
Valvular Disease (cont.)
Mitral stenosis: narrowing of the opening in the mitral valve that impedes blood flow from
the LA into the LV
Mitral regurgitation: allows blood to flow back into the LA during diastole
Mitral valve prolapse: one or both leaflets enlarges and protrudes into the LA during
systole
Electrocardiogram Monitoring
12-lead electrocardiogram
Looks at heart from 12 directions or perspectives
TALKING POINTS:
What cardiac events occur during the P wave, QRS complex, and the T wave?
_______________________________________________________________ Chapter 36Cardiac Disorders 35
Introduction to Medical-Surgical Nursing, 6th ed.
LESSON 36.4
9
Slide 71
Electrocardiogram Monitoring (cont.)
Interpretation of electrocardiograms
Heart’s electrical activity represented by deflections, positive and negative, from the
baseline
P wave, QRS complex, and T wave
Criteria for interpreting electrocardiograms
Rate calculation
Rhythm
TALKING POINTS:
Slide 72
Electrocardiogram Monitoring (cont.)
Interpretation of electrocardiograms
Normal sinus rhythm
The most common cardiac rhythm is sinus in origin because the impulse
7
Slide 73
Hemodynamic Monitoring
Central venous catheter
Placed through the skin, into a venous access (brachial, femoral, subclavian, or
TALKING POINTS:
The pressure in the RA (called right atrial pressure [RAP] or central venous pressure
[CVP]) can be measured.
This measurement is used as an indication of fluid volume.
What do measurements below normal indicate? Above normal?
36 Chapter 36Cardiac Disorders ________________________________________________________________
Introduction to Medical-Surgical Nursing, 6th ed.
LESSON 36.4
Slide 74
Hemodynamic Monitoring (cont.)
Pulmonary artery catheter
Swan-Ganz catheter
Longer than the central venous catheter
Inserted like the central venous catheter and is threaded through the RA, tricuspid
TALKING POINTS:
The purpose of a pulmonary artery catheter is to measure right-sided heart pressures and
pulmonary artery pressures and to assess left-sided heart function.
What is the normal pulmonary capillary wedge pressure?
Slide 75
Hemodynamic Monitoring (cont.)
Arterial line
Provides a direct measurement of systolic and diastolic blood pressures
TALKING POINTS:
Activities
Classroom Choose from below to make 30 minutes
Online
DISCUSS
Discuss the cardiac transplant procedure.
Describe criteria for donors and recipients
Discuss sudden cardiac death. Describe the
diagnostic testing required for patients who
survive sudden cardiac death.
Discuss the procedure for an implantable
CREATE
Ask students to prepare and record a video
of a nurse providing education on prevention
of atherosclerotic heart disease. Ask
students to post constructive comments on
each other’s videos.
_______________________________________________________________ Chapter 36Cardiac Disorders 37
Introduction to Medical-Surgical Nursing, 6th ed.
LESSON 36.4
PRACTICE
Divide the class into three groups, and
assign each group one of the following
cardiac disorders: coronary artery disease
(CAD), acute myocardial infarction (AMI), or
congestive heart failure (CHF). Have each
group develop a presentation about the
disorder that includes the pathophysiology,
Divide the class into several teams, and take
turns asking the teams quiz questions
regarding each cardiac disorder in this
lesson. Some example of questions might
be: What are the risk factors associated with
infective endocarditis? What are some
complications of cardiomyopathy? How is
sudden cardiac death treated? The team
with the most correct answers is the winner.
Divide the class into groups, and present
each group with the following scenario: A
POST & COMMENT
Post the following discussion topic online
and have students comment. Discuss
arteriosclerosis and atherosclerosis,
including the risk factors, signs and
symptoms, and medical treatment.
Post the following discussion topic online
and have students comment. Discuss the
Post the following discussion topic online
and have students comment. Discuss the
signs and symptoms of mitral and aortic
stenosis.
Post the following discussion topic online
and have students comment. Discuss the
signs and symptoms of aortic regurgitation.
Describe the causes, heart sounds, and
medical treatment.
Post the following discussion topic online
and have students comment. Discuss the
signs and symptoms of acute myocardial
38 Chapter 36Cardiac Disorders ________________________________________________________________
Introduction to Medical-Surgical Nursing, 6th ed.
LESSON 36.4
DISCUSS
Present the image collection PPT slides with
various dysrhythmias and ask students to
identify various dysrhythmias
Divide the class into groups, and assign
each group a nursing diagnosis from the
textbook that is associated with the
disorders from this lesson. Have each group
develop a list of nursing interventions with
rationales that would be used to meet the
goals. Then have the students discuss their
interventions and rationales with the class.
POST & COMMENT
Post the following discussion topic online
and have students comment. List at least
five nursing interventions for a patient
experiencing myocardial infarction, heart
failure, infective endocarditis, and valve
disorders. Ask students to prioritize their
interventions. Ask students to post
constructive comments on each other’s
postings.
Critical Thinking Question
A 53-year-old man presents to the emergency department with severe chest pain that has
lasted for the past 2 hours, radiating down his left arm. The pain is unrelieved by sublingual
nitroglycerin given by paramedics en route to the hospital. The patient is overweight and
has a history of hypertension; he is a smoker and has a family history of heart disease. The
provider suspects that the patient is experiencing an acute myocardial infarction. What tests
will the provider likely order and what medications should the nurse be prepared to
administer?
Discussion Guidelines: The patient will be attached to a cardiac monitor to evaluate his heart’s
Instructor Notes/Student Feedback
_______________________________________________________________ Chapter 36Cardiac Disorders 39
Introduction to Medical-Surgical Nursing, 6th ed.
36
Assessments for
Cardiac Disorders
CHAPTER OBJECTIVES
Lesson 36.1:
2. Describe the flow of blood through the heart and coronary vessels.
4. State the order in which normal impulses are conducted through the heart.
Lesson 36.2:
5. Explain the nursing considerations for patients having procedures to detect or evaluate cardiac
disorders.
Lesson 36.3:
6. Identify nursing implications for common therapeutic measures, including drug, diet, or oxygen
therapy; pacemakers and cardioverters; cardiac surgery; and cardiopulmonary resuscitation.
Lesson 36.4:
7. Explain the pathophysiology, risk factors, signs and symptoms, complications, and treatment for
selected cardiac disorders.
Assessments by Lesson & Objective
Lesson 36.1
1
Study Guide
Part IB: 9(p. 218)
Part IF: 1-5 (p. 219)
Part IIN: 1 (p. 221
Evolve Instructor Resources
Test Bank 35
Evolve Student Resources
2
Study Guide
Part IA: 15 (p. 218)
Part IL: A-M (p. 221)
Part IIN: 2 (p. 221)
3
Study Guide
Part IB: 2, 6, 7, 11, 12 (p. 218)
Part IM: A-E (p. 221)
Evolve Student Resources
NCLEX Review: 10
40 Chapter 36Cardiac Disorders ________________________________________________________________
Introduction to Medical-Surgical Nursing, 6th ed.
Assessments by Lesson & Objective
4
Study Guide
Part IA: 7, 12, (p. 217)
Part IB: 3-5, 8, 14 (p. 218)
Part IC: 1 (p. 218)
Evolve Instructor Resources
Test Bank: 36, 40
Evolve Student Resources
NCLEX Review: 9
5
Study Guide
Evolve Instructor Resources
Test Bank: 5, 6, 16, 17, 18, 20, 21
Evolve Student Resources
NCLEX Review: 3, 4, 5
Prioritization: 5, 6
Lesson 36.3
6
Study Guide
Part IIN: 31-35, 38-43, 46-47 (p. 224-225)
Evolve Instructor Resources
Test Bank: 7, 8, 11, 22, 23, 24, 25, 29, 30, 31, 32
Open Book Quiz: 8, 10
Evolve Student Resources
NCLEX Review: 2, 7, 8
Prioritization: 1-4
Lesson 36.4
7
Study Guide
Part IA: 3, 4, 6, 9, 13, 14 (p. 217-218)
Part IB: 13 (p. 218)
Part IH: 1-5 (p. 220)
Evolve Instructor Resources
Test Bank: 2, 3, 4, 10, 12, 13, 38
Open Book Quiz: 8, 10
Evolve Student Resources
Prioritization: 7
_______________________________________________________________ Chapter 36Cardiac Disorders 41
Introduction to Medical-Surgical Nursing, 6th ed.
Assessments by Lesson & Objective
Lesson 36.2
8
Study Guide
Part IA: 1, 2, 5, 10, 11 (p. 217)_
Evolve Instructor Resources
Lesson 36.4
9
Study Guide
Part IA: 8 (p. 217)
Part IJ: 1-3 (p. 220)
Evolve Instructor Resources
Test Bank: 9, 15, 19, 26, 27, 28, 33, 34, 37
Evolve Student Resources
Instructor’s Notes/Student Feedback