A 3-year-old child is admitted with suspected Kawasaki disease. Which assessment finding would be most concerning and require immediate nursing intervention?
1Bilateral conjunctival injection without exudate
2Strawberry tongue with cracked, dry lips
3Polymorphous rash on trunk and extremities
4New onset of chest pain with decreased activity tolerance✓ 정답
해설
New onset chest pain with decreased activity tolerance indicates potential coronary artery involvement, the most serious complication requiring immediate intervention. Other options are typical Kawasaki disease findings not immediately life-threatening.
Core Nursing ExplanationKey Concept Analysis: This question assesses the nurse's ability to recognize a life-threatening complication of Kawasaki disease (Mucocutaneous Lymph Node Syndrome). The primary pathophysiology involves a systemic vasculitis, particularly affecting medium-sized arteries. The most feared complication is the development of coronary artery aneurysms, which can lead to myocardial infarction (MI), heart failure, or sudden death in children.
Answer Rationale: Key Point! Option ④, "New onset of chest pain with decreased activity tolerance," is the most concerning finding. Chest pain in a young child is a significant red flag. It suggests potential myocardial ischemia or infarction due to coronary artery involvement. Decreased activity tolerance indicates possible compromised cardiac output. This combination signals an acute, potentially life-threatening cardiac complication requiring immediate assessment, notification of the provider, and intervention (e.g., ECG, cardiac enzymes, echocardiogram, possible administration of additional therapies like IV immunoglobulin (IVIG) or anticoagulants).
Distractor Analysis:
Option ① (Bilateral conjunctival injection without exudate): This is a classic diagnostic criterion for Kawasaki disease. It is non-purulent (no exudate) and is expected. While it requires monitoring, it is not an immediate life threat.
Option ② (Strawberry tongue with cracked, dry lips): This describes oral mucosal changes, another classic diagnostic feature (along with erythema and fissuring of lips). It is a typical finding that is managed with supportive care (lip balm, oral hygiene) but is not an emergency.
Option ③ (Polymorphous rash on trunk and extremities): This is the characteristic rash of Kawasaki disease, which can be maculopapular, erythema multiforme-like, or scarlatiniform. It is part of the acute febrile phase and, while important for diagnosis, is not a sign of immediate danger.
Related Concepts: The nursing priority in Kawasaki disease shifts from managing acute symptoms (fever, rash) to vigilantly monitoring for and preventing cardiac complications. Treatment with IV Immunoglobulin (IVIG) and high-dose aspirin aims to reduce inflammation and prevent aneurysm formation. Long-term follow-up with echocardiograms is crucial.
Concept Summary
Kawasaki Disease: Acute febrile vasculitis of childhood.
Primary Concern: Coronary artery aneurysm formation.
Diagnostic Criteria (Fever + ≥4 of the following): 1) Bilateral non-exudative conjunctival injection, 2) Oral changes (strawberry tongue, cracked lips), 3) Polymorphous rash, 4) Cervical lymphadenopathy, 5) Changes in extremities (edema, erythema, periungual peeling).
Immediate Intervention Trigger: Any sign of cardiac compromise (chest pain, dyspnea, tachycardia out of proportion to fever, gallop rhythm, hypotension).
EMERGENCY: Immediate assessment, notify provider, prepare for cardiac workup.
Anatomy, Physiology & Pharmacology PointsPathophysiology: Vasculitis → inflammation of vessel walls (especially coronary arteries) → weakening → aneurysm formation → risk of thrombosis, stenosis, or rupture. Pharmacology:
IV Immunoglobulin (IVIG): Modulates immune response, reduces inflammation, and significantly lowers aneurysm risk. Given as a single high-dose infusion.
Aspirin: Used in high anti-inflammatory doses during acute phase, then switched to low antiplatelet doses in convalescent phase to prevent thrombosis.
Memory TipsCRASH & Burn (for diagnostic criteria): Conjunctivitis (non-purulent) Rash (polymorphous) Adenopathy (cervical, >1.5 cm) Strawberry tongue / oral changes Hands & feet (changes: redness, edema, later peeling)
...and Burn = Fever (>5 days). Priority Reminder: "When the heart is involved, it's time to start the emergency plan." Chest pain = Coronary alarm.
High-Frequency NCLEX Topics
NCLEX loves to test priority-setting and complication recognition. Kawasaki disease is a classic pediatric topic where you must differentiate between expected symptoms (manage with routine care) and signs of a deadly complication (requires immediate action). Always choose the option indicating compromised ABCs (Airway, Breathing, Circulation) or acute organ dysfunction as the priority.
Watch Out for Question Variations!
From Symptom to Intervention: "The nurse is caring for a child with Kawasaki disease who develops chest pain. Which action should the nurse take first?" (Answer: Assess vital signs and oxygen saturation, then notify provider).
Medication Focus: "A child with Kawasaki disease is receiving high-dose aspirin. The nurse should monitor for which adverse effect?" (Answer: Signs of bleeding or Reye's syndrome symptoms like vomiting, lethargy).
Parent Education: "Which statement by a parent of a child recovering from Kawasaki disease indicates understanding of long-term care?" (Answer: "We will keep all scheduled cardiology appointments for echocardiograms.").
Nursing Clinical Practice GuideClinical Scenario: You are the nurse on a pediatric unit. Liam, a 3-year-old, was diagnosed with Kawasaki disease 2 days ago and received his first dose of IVIG. He has been irritable with a persistent fever. During your afternoon assessment, he is less playful than earlier, points to his chest, and says "owie," and his mother reports he got tired very quickly during a short walk to the playroom.
Nursing Intervention Strategy:
Immediate Assessment (ABCs): Check vital signs, paying close attention to heart rate (tachycardia?), respiratory rate (tachypnea?), blood pressure (hypotension?), and oxygen saturation. Auscultate heart sounds for murmurs or gallops and lung sounds for crackles.
Notify the Provider STAT: Report your findings clearly: "Patient with Kawasaki disease, post-IVIG, now complaining of chest pain and exhibiting decreased activity tolerance. Vital signs are X, Y, Z."
Prepare for Orders: Anticipate and prepare for:
12-lead ECG.
Echocardiogram (stat).
Cardiac enzyme levels (CK-MB, Troponin).
Administration of supplemental oxygen if saturations are low.
Possible additional medications (e.g., anticoagulants, inotropic support).
Provide Comfort & Safety: Keep the child on bedrest or minimal activity to reduce cardiac workload. Provide comfort measures for chest pain as ordered. Stay with the child and family to provide reassurance and continuous monitoring.
Patient Safety and Precautions:
Never dismiss chest pain in a child with Kawasaki disease as "musculoskeletal" or "attention-seeking" without a thorough cardiac workup.
During the high-dose aspirin phase, monitor for signs of bleeding (bruising, petechiae, tarry stools) and Watch out for confusion! symptoms of Reye's syndrome (vomiting, lethargy, confusion) especially if the child contracts a viral illness like influenza or chickenpox.
Ensure strict infection control; these children are immunocompromised, especially post-IVIG.
Monitor for infusion reactions (fever, chills, headache, hypotension). Administer slowly as per protocol, often starting at a low rate and increasing gradually.
Pre-medicate with acetaminophen and diphenhydramine as ordered to prevent reactions.
Convalescent Phase: Low-dose (antiplatelet) – emphasize the importance of never missing a dose to prevent clots in aneurysms.
Educate parents that aspirin is usually continued until follow-up echocardiograms show no coronary abnormalities.
A Word from Your Senior Nurse
"Kawasaki disease is one of those pediatric conditions that truly tests your vigilance. The initial symptoms are dramatic but often not immediately dangerous. The real nursing challenge is seeing past the fever and rash to guard the heart. Your most critical tool is not the stethoscope or the IV pump—it's your index of suspicion. When a child who has been miserable but stable suddenly becomes quiet, complains of pain, or just 'isn't himself,' pause. Think 'heart' first. That shift in your assessment focus can literally save a life. On the NCLEX and at the bedside, remember: in Kawasaki disease, the coronary arteries are the silent battlefield, and you are the frontline sentinel."
Kawasaki Disease — An acute febrile illness of childhood characterized by systemic vasculitis, particularly affecting coronary arteries, leading to potential aneurysm formation.
Coronary Artery Aneurysm — A localized dilation of a coronary artery wall, a serious complication of Kawasaki disease that predisposes to thrombosis, myocardial infarction, or rupture.
IV Immunoglobulin — A blood product containing pooled antibodies used as the primary treatment in Kawasaki disease to reduce systemic inflammation and the risk of coronary artery complications.
Mucocutaneous Lymph Node Syndrome — Another name for Kawasaki disease, highlighting its key features: mucous membrane involvement, skin rash, and lymphadenopathy.
Reye's Syndrome — A rare but severe condition characterized by acute encephalopathy and liver failure, associated with aspirin use in children with viral infections; a key concern during aspirin therapy for Kawasaki disease.