A 4-year-old child diagnosed with Kawasaki disease is in the acute phase and has developed coronary artery aneurysms. Which nursing intervention should be the highest priority?
1Monitor for signs of myocardial infarction and maintain strict bed rest✓ 정답
2Administer high-dose aspirin therapy as prescribed
3Apply cool compresses to reduce fever and inflammation
4Encourage increased fluid intake to prevent dehydration
해설
In Kawasaki disease with coronary artery aneurysms, monitoring for myocardial infarction and maintaining bed rest are the highest priority due to the high risk of thrombosis and cardiac events. Other interventions like aspirin therapy and fever management are important but secondary to cardiac monitoring.
Understanding the Priority in Acute Kawasaki Disease with Coronary Artery Aneurysms
The highest priority intervention for a 4-year-old child in the acute phase of Kawasaki disease who has already developed coronary artery aneurysms is to monitor for signs of myocardial infarction and maintain strict bed rest. This choice directly addresses the most immediate, life-threatening complication stemming from the underlying pathophysiology.
Pathophysiology and Rationale for Priority
Kawasaki disease is a systemic vasculitis that has a strong predilection for the coronary arteries. The acute phase is marked by intense inflammation of the vessel walls. When this inflammation leads to the formation of coronary artery aneurysms, the normal laminar blood flow is disrupted, becoming turbulent within the dilated segments . This turbulence, combined with the damaged, inflamed endothelium, creates a highly thrombogenic environment. The primary, immediate danger is the formation of a thrombus within the aneurysm, which can occlude the vessel and cause a myocardial infarction . The American Heart Association emphasizes the critical need for targeted ischemic testing in these patients because the risk of silent or symptomatic myocardial ischemia is severe and constitutes a high-priority clinical concern [1]. Therefore, vigilant monitoring for signs of infarction, such as chest pain, unexplained irritability, pallor, or changes in vital signs, is paramount. Strict bed rest is a complementary intervention to reduce myocardial oxygen demand, thereby decreasing the workload on a heart that is at significant risk for an ischemic event.
Analysis of Other Options
While the other interventions are components of care, they do not address the most acute threat to life.
- Administer high-dose aspirin therapy as prescribed: High-dose aspirin is a cornerstone of acute-phase treatment for its anti-inflammatory effects. However, it is a medical intervention that the nurse carries out, not the highest nursing surveillance priority once aneurysms are present. The therapeutic goal of aspirin is to prevent the very complication we are now actively monitoring for—thrombosis. In the hierarchy of needs, detecting the failure of this therapy (i.e., a thrombotic event) takes precedence over the act of administering the medication.
- Apply cool compresses to reduce fever and inflammation: This is a comfort measure for managing fever, a common symptom of the acute phase. While providing comfort is important, it does not address the life-threatening cardiovascular instability that defines the patient's new status with coronary artery aneurysms.
- Encourage increased fluid intake to prevent dehydration: Maintaining hydration is a supportive nursing measure. However, for a child with confirmed structural damage to the coronary arteries, the risk of death from an acute coronary event far outweighs the risk from dehydration, making cardiac monitoring the clear priority.
The development of coronary artery aneurysms represents the most significant long-term sequela of Kawasaki disease, contributing substantially to cardiac morbidity and mortality . The immediate nursing priority must pivot from general supportive care to focused, vigilant cardiovascular assessment to detect and facilitate rapid treatment of a potentially fatal myocardial infarction .
References (research sources)
[1]
Multimodality Approach to Coronary Ischemic Testing in Pediatric Patients: A Scientific Statement From the American Heart Association.Research articleOlivieri LJ, Lee S, Chen MH, Dahdah N, Doan TT, Jegatheeswaran A, Krishnamurthy R, Selamet Tierney ES, Weber EM, Rao A, American Heart Association Council on Lifelong Congenital Heart Disease and Heart Health in the Young, and the Council on Cardiovascular and Stroke Nursing. (2026) · DOI: 10.1161/jaha.125.047790
Clinical Practice Guide
Priority Assessment
Continuously monitor for signs of myocardial ischemia or infarction: chest pain, unexplained irritability, pallor, diaphoresis, or sudden changes in vital signs.
Obtain a baseline 12-lead ECG and serial ECGs as ordered to detect ST-segment or T-wave changes.
Assess cardiac biomarkers (troponin, CK-MB) per protocol to identify silent ischemia.
Evaluate perfusion status: capillary refill, peripheral pulses, and skin temperature.
Bed Rest and Activity Management
Maintain strict bed rest during the acute phase to reduce myocardial oxygen demand and minimize the risk of thrombus dislodgement.
Cluster nursing care to allow uninterrupted rest periods.
Provide developmentally appropriate quiet activities (e.g., reading, puzzles) to reduce emotional stress and crying, which can increase cardiac workload.
Avoid isometric exercises and any activity that causes straining.
Pharmacologic Management
Administer high-dose aspirin as prescribed for its anti-inflammatory and antiplatelet effects; monitor for signs of bleeding or Reye syndrome.
Anticipate the addition of anticoagulation therapy (e.g., warfarin, low molecular weight heparin) for moderate to giant aneurysms to prevent thrombus formation.
Administer intravenous immunoglobulin (IVIG) as ordered to reduce systemic inflammation and the risk of further coronary artery damage.
Monitor for IVIG infusion reactions: fever, chills, headache, and hypotension.
Family Education and Support
Teach parents to recognize and immediately report signs of myocardial infarction in a young child, including inconsolable crying, vomiting, or extreme fatigue.
Explain the rationale for strict bed rest and activity restrictions in simple, clear terms.
Provide emotional support and address parental anxiety regarding the diagnosis and long-term prognosis.
Coordinate with pediatric cardiology for long-term follow-up, including serial echocardiograms and stress testing.
Kawasaki disease — An acute systemic vasculitis primarily affecting children, with a predilection for coronary arteries, potentially leading to aneurysms and thrombosis.
coronary artery aneurysm — A pathologic dilation of a coronary artery segment, often a complication of Kawasaki disease, creating turbulent blood flow and a high risk for thrombus formation.
myocardial infarction — Necrosis of heart muscle caused by an interruption of blood supply, often due to a thrombus occluding a coronary artery aneurysm in Kawasaki disease.
thrombogenic environment — A set of conditions, such as endothelial damage and turbulent blood flow, that promote the formation of blood clots within a vessel.