Chapter 27: The Child with Cardiovascular Dysfunction Test Bank for Wong's Nursing Care of Infants And Children 11th Edition by Hockenberry

TEST BANK FOR WONG'S NURSING CARE OF INFANTS AND CHILDREN 11TH EDITION BY HOCKENBERRY Chapter 27: The Child with Cardiovascular Dysfunction MULTIPLE CHOICE 1. What term is defined as the volume of blood ejected by the heart in 1 minute? a. Afterload b. Cardiac cycle c. Stroke volume d. Cardiac output ANS: D Cardiac output is defined as the volume of blood ejected by the heart in 1 minute. Cardiac output = Heart rate x Stroke volume. Afterload is the resistance against which the ventricles must pump when ejecting blood (ventricular ejection). A cardiac cycle is the sequential contraction and relaxation of both the atria and ventricles. Stroke volume is the amount of blood ejected by the heart in any one contraction. DIF: Cognitive Level: Understanding MSC: Client Needs: Physiological Integrity 2. A chest radiography examination is ordered for a child with suspected cardiac problems. The childs parent asks the nurse, What will the x-ray show about the heart? The nurses response should be based on knowledge that the radiograph provides which information? a. Shows bones of the chest but not the heart b. Evaluates the vascular anatomy outside of the heart c. Shows a graphic measure of electrical activity of the heart d. Supplies information on heart size and pulmonary blood flow patterns ANS: D Chest radiographs provide information on the size of the heart and pulmonary blood flow patterns. The bones of the chest are visible on chest radiographs, but the heart and blood vessels are also seen. Magnetic resonance imaging is a noninvasive technique that allows for evaluation of vascular anatomy outside of the heart. A graphic measure of electrical activity of the heart is provided by electrocardiography. DIF: Cognitive Level: Understanding TOP: Nursing Process: Assessment MSC: Client Needs: Physiological Integrity 3. A 6-year-old child is scheduled for a cardiac catheterization. What consideration is most important in planning preoperative teaching? a. Preoperative teaching should be directed at his parents because he is too young to understand. b. Preoperative teaching should be adapted to his level of development so that he can understand. c. Preoperative teaching should be done several days before the procedure so he will be prepared. d. Preoperative teaching should provide details about the actual procedures so he will know what to expect. ANS: B Preoperative teaching should always be directed to the childs stage of development. The caregivers also benefit from these explanations. The parents may ask additional questions, which should be answered, but the child needs to receive the information based on developmental level. This age group will not understand in-depth descriptions. School-age children should be prepared close to the time of the cardiac catheterization. DIF: Cognitive Level: Applying TOP: Integrated Process: Teaching/Learning MSC: Client Needs: Physiological Integrity 4. After returning from cardiac catheterization, the nurse monitors the childs vital signs. The heart rate should be counted for how many seconds? a. 15 b. 30 c. 60 d. 120 ANS: C The heart rate is counted for a full minute to determine whether arrhythmias or bradycardia is present. Fifteen to 30 seconds are too short for accurate assessment. Sixty seconds is sufficient to assess heart rate and rhythm. DIF: Cognitive Level: Applying TOP: Nursing Process: Assessment MSC: Client Needs: Physiological Integrity 5. After returning from cardiac catheterization, the nurse determines that the pulse distal to the catheter insertion site is weaker. How should the nurse respond? a. Elevate the affected extremity. b. Notify the practitioner of the observation. c. Record data on the assessment flow record. d. Apply warm compresses to the insertion site. ANS: C The pulse distal to the catheterization site may be weaker for the first few hours after catheterization but should gradually increase in strength. Documentation of the finding provides a baseline. The extremity is maintained straight for 4 to 6 hours. This is an expected change. The pulse is monitored. If there are neurovascular changes in the extremity, the practitioner is notified. The site is kept dry. Warm compresses are not indicated. DIF: Cognitive Level: Applying TOP: Nursing Process: Assessment MSC: Client Needs: Physiological Integrity 6. The nurse is caring for a school-age girl who has had a cardiac catheterization. The child tells the nurse that her bandage is too wet. The nurse finds the bandage and bed soaked with blood. What nursing action is most appropriate to institute initially? a. Notify the physician. b. Place the child in Trendelenburg position. c. Apply a new bandage with more pressure. d. Apply direct pressure above the catheterization site. ANS: D When bleeding occurs, direct continuous pressure is applied 2.5 cm (1 inch) above the percutaneous skin site to localize pressure on the vessel puncture. The physician can be notified, and a new bandage with more pressure can be applied after pressure is applied. The nurse can have someone else notify the physician while the pressure is being maintained. Trendelenburg positioning would not be a helpful intervention. It would increase the drainage from the lower extremities. DIF: Cognitive Level: Analyzing TOP: Nursing Process: Implementation MSC: Client Needs: Physiological Integrity 7. What statement best identifies the cause of heart failure (HF)? a. Disease related to cardiac defects b. Consequence of an underlying cardiac defect c. Inherited disorder associated with a variety of defects d. Result of diminished workload imposed on an abnormal myocardium ANS: B HF is the inability of the heart to pump an adequate amount of blood to the systemic circulation at normal filling pressures to meet the bodys metabolic demands. HF is not a disease but rather a result of the inability of the heart to pump efficiently. HF is not inherited. HF occurs most frequently secondary to congenital heart defects in which structural abnormalities result in increased volume load or increased pressures on the ventricles. DIF: Cognitive Level: Understanding TOP: Nursing Process: Assessment MSC: Client Needs: Physiological Integrity 8. The nurse finds that a 6-month-old infant has an apical pulse of 166 beats/min during sleep. What nursing intervention is most appropriate at this time? a. Administer oxygen. b. Record data on the nurses notes. c. Report data to the practitioner. d. Place the child in the high Fowler position.