# A 10-year-old child with acute rheumatic fever is admitted to the pediatric unit. Which nursing intervention should be the priority during the acute phase?

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> subject: Child Health

## 문제

A 10-year-old child with acute rheumatic fever is admitted to the pediatric unit. Which nursing intervention should be the priority during the acute phase?

## 보기

1. Enforce strict bed rest to reduce cardiac workload **✔ 정답**
2. Encourage active range of motion exercises to prevent joint stiffness
3. Provide a high-sodium diet to maintain fluid balance
4. Schedule frequent visitors to prevent social isolation

**정답: 1**

## 해설

Strict bed rest is the priority to reduce cardiac workload and prevent damage during acute rheumatic fever, especially with carditis. Other interventions like active exercise, high-sodium diet, or frequent visitors are inappropriate in the acute phase.

## 심화 해설

Understanding the Priority in Acute Rheumatic Fever

The correct answer is to enforce strict bed rest to reduce cardiac workload. In the acute phase of rheumatic fever, the primary pathophysiological concern is carditis, an inflammation of all layers of the heart (pancarditis), which can lead to valvular damage and heart failure. The nursing priority is to minimize myocardial oxygen demand and protect the inflamed heart tissue. Strict bed rest is the most effective non-pharmacological intervention to achieve this by reducing the heart rate and the force of myocardial contraction, thereby decreasing cardiac workload .

The other options are incorrect and potentially harmful during the acute phase. Active range of motion exercises would increase cardiac workload and are contraindicated when carditis is present; joint pain from migratory polyarthritis should be managed with comfort measures and gentle, passive positioning. A high-sodium diet would promote fluid retention, exacerbating the symptoms of heart failure if carditis is present. Scheduling frequent visitors increases the risk of infection and does not provide the physiological rest that is critical for cardiac recovery.

Linking Pathophysiology to Clinical Outcomes

The rationale for prioritizing cardiac rest is strongly supported by the long-term consequences of inadequately managed rheumatic heart disease (RHD). The inflammation from acute rheumatic fever can cause progressive and permanent damage to the heart valves, most commonly the mitral valve, resulting in stenosis or regurgitation. A case study of a patient with severe rheumatic mitral stenosis demonstrated that a large mobile left atrial thrombus could form, leading to a critical risk of hemodynamic collapse by obstructing the left ventricular inflow tract [2]. This illustrates the devastating mechanical complications that can arise from the initial valvular damage. By enforcing strict bed rest during the acute episode, the nurse plays a direct role in limiting the inflammatory process that sets the stage for such severe, life-threatening sequelae.

Furthermore, the systemic nature of the post-streptococcal inflammatory response is not limited to the heart. While the cardiac manifestations are the priority due to their potential for chronic disability and acute decompensation, the same immune-mediated process can affect other organs, such as the kidneys, leading to post-streptococcal glomerulonephritis (PSGN) . This underscores that acute rheumatic fever is a systemic condition requiring comprehensive assessment, but the management priority must always be directed toward the most life-threatening complication: carditis.

Applying the Clinical Reasoning Framework

When prioritizing care for this child, you can use the "ABC" (Airway, Breathing, Circulation) and "Maslow's Hierarchy of Needs" frameworks, which place physiological survival at the apex. A nursing intervention that directly supports circulatory function and prevents heart failure aligns with this highest-level priority. The meta-analysis on hospitalized medical patients reinforces the principle that acute illness creates a state of physiological stress, increasing the risk of complications like venous thromboembolism . While this study focuses on a different complication, it highlights the broader concept that an acutely ill, immobile patient has significant physiological vulnerabilities. For a child with acute rheumatic fever, the prescribed bed rest is a therapeutic intervention to protect the heart, but it also necessitates vigilant nursing care to prevent complications of immobility, such as skin breakdown and constipation, once the acute inflammation subsides. The immediate priority, however, remains the reduction of cardiac workload to prevent irreversible valvular damage and acute heart failure.References (research sources)

- [2]Mitral Jamming by Left Atrial Mobile Thrombus in Severe Rheumatic Mitral Stenosis.Research articlePutri AK, Hendiperdana R, Prabowo BK, Marsam RK, Mumpuni H, Bagaswoto HP, Amal I, Aribowo H, Rinonce HT, Dinarti LK. (2026) · DOI: 10.1016/j.jaccas.2025.106126

## 임상 시나리오

Clinical Management of Acute Rheumatic Fever

**Priority Nursing Intervention**
The priority during the acute phase with carditis is to enforce strict bed rest. This non-pharmacological measure minimizes myocardial oxygen consumption by reducing heart rate and contractile force, protecting the inflamed myocardium and valves from further stress. The duration of bed rest is guided by clinical markers such as resting heart rate, ESR, and C-reactive protein levels, and it is gradually liberalized as inflammation subsides.

**Monitoring for Complications**
Continuous assessment for signs of heart failure is critical. The nurse must monitor for tachycardia disproportionate to fever, a new or changing heart murmur, gallop rhythm (S3), pericardial friction rub, and signs of pulmonary congestion such as tachypnea, cough, and crackles. Daily weights, strict intake and output, and abdominal girth measurements for hepatomegaly are essential to detect fluid retention early.

**Supportive Care and Patient Education**
Joint pain from migratory polyarthritis is managed with comfort measures, gentle passive positioning, and a supportive mattress, not active exercise. A nutritious, low-sodium diet is provided to prevent fluid overload. The child's emotional and developmental needs are met through quiet, non-stimulating activities like reading or board games, not frequent visitors. Family education must emphasize the critical role of adherence to secondary antibiotic prophylaxis with intramuscular benzathine penicillin G every 3–4 weeks to prevent recurrent episodes and progressive rheumatic heart disease.

## 핵심 개념

- **Acute Rheumatic Fever** — A systemic inflammatory disease that occurs after Group A Beta-Hemolytic Streptococcus (GABHS) pharyngitis. The main diagnostic criteria are the Jones Criteria.
- **Carditis** — Inflammation of the heart. It is the most serious symptom of ARF, and can involve the myocardium (myocarditis), endocardium (endocarditis, especially the valves), and pericardium (pericarditis), and chronically progresses to rheumatic heart disease.
- **Chorea (Sydenham's Chorea)** — One of the main symptoms of ARF, a neurological disorder characterized by rapid, irregular, and purposeless involuntary movements. Also known as "St. Vitus' dance."
- **Jones Criteria** — Criteria for diagnosing acute rheumatic fever. It consists of major criteria (Carditis, Polyarthritis, Chorea, Erythema marginatum, Subcutaneous nodules) and minor criteria (fever, arthralgia, laboratory findings, etc.).
- **Bed Rest / Activity Restriction** — Core treatment for the acute phase of ARF with carditis. It reduces the heart's workload and oxygen demand to help heal inflamed heart tissue and prevent further damage.

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