Guided Lecture Notes, Ricci-Kyle

Chapter 40: Nursing Care of the Child With a Cardiovascular Disorder

Learning Objective 1. Discuss anatomic and physiologic differences of the cardiovascular system in infants and children versus adults. (Refer to Written Assignment 2; Test Generator Questions 10; Pre-Lecture Quiz T/F 1, 3, 4)

  • Explain that the cardiovascular system undergoes numerous changes at birth. Structures that were vital to the fetus are no longer needed. (Refer to PowerPoint Slide 2)
  • Point out that circulation via the umbilical arteries and vein is replaced with the child’s own closed independent circulation.
  • Review the circulatory changes from gestation to birth. Point out that the fetal heart is developed within the first 21 days of gestation. Describe fetal circulation. (Refer to PowerPoint Slide 3)
  • Describe the changes that occur in the cardiopulmonary system with the first breath that enable the newborn to make a successful transition from fetal circulation to extrauterine circulation.
  • Review how the structure and function of the infant’s and child’s cardiovascular system differ from that of adults, depending upon age. Review the changing size and location of the heart for the infant, toddler, school-age child, and adolescent.
  • Tell students that the ventricle walls are similar in thickness at birth, but with time the left wall thickens. Explain that right ventricular function dominates at birth and then left ventricular function becomes dominant.
  • Explain that the infant’s sarcoplasmic reticulum is less well organized than the adult’s, making the infant dependent upon serum calcium for contraction.
  • Explain that the heart’s efficiency increases as the child ages and the heart rate drops over time. Review normal heart rates for the infant, toddler, school-age child, and adolescent.

Learning Objective 2. Describe nursing care related to common laboratory and diagnostic testing used in the medical diagnosis of pediatric cardiovascular conditions. (Refer to Written Assignment 1; Case Study; Test Generator Questions 15)

  • Explain the laboratory and diagnostic tests used for cardiovascular disorders in children. Review the nursing implications for each. (Refer to PowerPoint Slide 6)
  • Emphasize to students that that nurse should be familiar with how tests are obtained, what they are used for, and normal versus abnormal results. Point out that this knowledge is necessary when providing client and family education related to the testing.
  • Tell students that cardiac catheterization is the definitive study for infants and children with cardiac disease. Explain that cardiac catheterization may be categorized as diagnostic, interventional, or electrophysiologic. Review the key considerations for nursing management, including preprocedure nursing assessment and preparation of the child and family, postprocedural nursing care, and discharge teaching. Review the teaching guidelines.

Learning Objective 3. Discuss cardiovascular disorders common in infants, children, and adolescents. (Refer to Group Assignment 2; Case Study; Test Generator Questions 1, 3, 4, 5, 6, 7, 8, 14; Pre-Lecture Quiz T/F 2, 5; Pre-Lecture Quiz FitB 1, 2, 3, 4, 5)

  • Describe congenital heart disease (CHD). Explain that the exact cause in unknown, but the belief is that it results from interplay of several factors, including genetic factors and maternal exposure to environmental factors, such as toxins, infections, and chronic illnesses. Review the chromosome defects associated with CHD.(Refer to PowerPoint Slide 9)
  • Tell students that pressure gradients are necessary for adequate circulation to the lungs and the rest of the body. Explain that these pressure gradients become disrupted if a structure has failed to develop or failed to close, or narrowing or transposition has occurred.
  • Note that some of the defects may result in significant hypoxemia, the sequelae of which include clubbing, polycythemia, exercise intolerance, hypercyanotic spells, brain abscess, and cerebrovascular accident.
  • Point out that the traditional approach to categorizing congenital heart defects has been whether the child exhibited cyanosis as a clinical manifestation. Thus, the classification was termed cyanotic versus acyanotic. Emphasize that this is not always accurate. Therefore, this chapter uses the more useful classification method of categorizing the disorders based on hemodynamic characteristics (blood flow patterns in the heart).
  • Explain disorders with decreased pulmonary blood flow, including tetralogy of Fallot and tricuspid atresia. (Refer to PowerPoint Slide 12)
  • Review disorders with increased pulmonary blood flow, including patent ductus arteriosus (PDA), atrial septal defect (ASD), and ventricular septal defect (VSD). (Refer to PowerPoint Slides 13, 14)
  • Identify the three types of ASD based on the location of the opening.
  • Review the pathophysiology of VSD. Define Eisenmenger’s syndrome.
  • Explain obstructive disorders, including coarctation of the aorta, aortic stenosis (AS), and pulmonary stenosis (PS). Note that the elevation in blood pressure with coarctation of the aorta can increase the risk for aortic rupture, aortic aneurysm, and cerebrovascular accident (CVA). (Refer to PowerPoint Slide 15)
  • Describe mixed disorders, including transposition of the great vessels (TGV), total anomalous pulmonary venous return (TAPVR), truncus arteriosus, and hypoplastic left heart syndrome. Note that as a result, systemic blood flow contains lower oxygen content. (Refer to PowerPoint Slides 16, 17)
  • Review acquired cardiovascular disorders. Explain that they are a result of an underlying cardiovascular problem or may refer to other cardiac disorders that are not congenital. Note that the most common type of acquired cardiovascular disorder in children is heart failure. (Refer to PowerPoint Slide 21)
  • Review the pathophysiology and therapeutic management of heart failure. (Refer to PowerPoint Slides 22, 23)
  • Discuss the key considerations for the nursing management of heart failure. Tell students that nursing management focuses on promoting oxygenation, supporting cardiac function, providing adequate nutrition, and promoting rest.
  • Explain infective endocarditis. Describe Roth’s spots, Janeway lesions, Osler’s nodes, and Black lines. Review the factors that increase the risk for infective endocarditis in children. (Refer to PowerPoint Slide 24)
  • Explain acute rheumatic fever. Note that the diagnosis of rheumatic fever is based upon the modified Jones’ criteria. (Refer to PowerPoint Slide 25)
  • Discuss cardiomyopathy and review the three types (restrictive, dilated, hypertrophic). Review the risk factors.(Refer to PowerPoint Slide 28)
  • Review hypertension. Note that hypertension in children most commonly occurs secondary to an underlying medical problem, most often renal disease. Review the risk factors for hypertension. (Refer to PowerPoint Slide 29)
  • Discuss Kawasaki disease. Review the pathophysiology, nursing assessment, laboratory and diagnostic testing, and nursing management. (Refer to PowerPoint Slide 30)
  • Explain hyperlipidemia and cholesterol levels in children. (Refer to PowerPoint Slide 31)
  • Discuss heart transplantation. Discuss candidacy for heart transplants and reasons for exclusion. Review the surgical procedure and preoperative therapeutic management. Discuss immunosuppression therapy. (Refer to PowerPoint Slide 32)

Learning Objective 4. Identify appropriate nursing assessments and interventions related to medications and treatments for pediatric cardiovascular disorders. (Refer to Written Assignment 3; Case Study; Discussion Topics 1, 2; Test Generator Questions 2, 11, 12)

  • Tell students that a variety of medications as well as other medical treatments and surgical procedures are used to treat cardiovascular problems in children.
  • Note that laboratory or non-nursing personnel obtain some of the tests, while the nurse might obtain others. Emphasize that the nurse should be familiar with how the tests are obtained, what they are used for, and abnormal versus normal results.

Learning Objective 5. Develop an individualized nursing care plan for the child with a cardiovascular disorder. (Refer to Group Assignment 1; Discussion Topics 1)

  • Identify the most common nursing diagnoses associated with cardiovascular disorders in children.
  • Explain that the nursing goals, interventions, and evaluation for a child with cardiovascular disorder are based on the nursing diagnoses. Emphasize that the plan should be individualized based on the child’s needs.
  • Tell students that the child with a congenital heart defect has multiple needs and requires comprehensive multidisciplinary care. Note that nurses play a key role in helping the child and family during this intensely stressful time.
  • Review the key considerations for improving oxygenation.
  • Review interventions to assist the child and family to cope with the diagnosis of CHD. Emphasize the importance of preventing infection.(Refer to PowerPoint Slide 18)
  • Review the key considerations for providing care for the child undergoing cardiac surgery. Discuss preoperative care, parent and child education, and care during the postoperative period.

Learning Objective 6. Describe the psychosocial impact of chronic cardiovascular disorders on children. (Refer to Web Assignment 1, 2; Discussion Topics 1)

  • Emphasize that the diagnosis of CHD is an especially overwhelming time for the child as well as for the parents. Note that the numerous examinations, diagnostic tests, and procedures are sources of stress for the child regardless of age.
  • Discuss common fears, such as the possibility of long-term disability and death or concerns that engaging in any activity will worsen the child’s status.
  • Explain that it is common for parents to overprotect the child.
  • Discuss the importance of using language that the parents and child can understand. Review the importance of encouraging parents and the child as developmentally appropriate to participate in the child’s care.
  • Emphasize the importance of encouraging attachment and bonding with the newborn and infant. Review play therapy.

Learning Objective 7. Develop a nutrition plan for the child with cardiovascular disease. (Refer to Clinical Assignment 2; Test Generator Questions 9)

  • Emphasize that adequate nutrition is critical due to the increased energy expenditures associated with increased cardiac and respiratory workloads. Review the key considerations for promoting adequate nutrition.
  • Note that many of the defects lead to heart failure; this may affect the child’s fluid balance, further increasing the child’s energy expenditure.

Learning Objective 8. Develop client/family teaching plans for the child with a cardiovascular disorder. (Refer to Clinical Assignment 1; Discussion Topics 1, 2; Test Generator Questions 13)

  • Tell students that initial teaching focuses on the underlying defect and measures to treat or control the problem.
  • Explain that if the child needs surgery, teaching shifts to preoperative and postoperative events. Emphasize the importance of discharge teaching for each admission. (Refer to PowerPoint Slide 18)