A nurse is caring for a 12-year-old child with acute lymphob… | 마이메르시 MyMerci
Adult Health
문제

A nurse is caring for a 12-year-old child with acute lymphoblastic leukemia (ALL) who has just completed the first cycle of chemotherapy and is experiencing severe neutropenia with an absolute neutrophil count (ANC) of 200 cells/mm³. Which nursing intervention should be the highest priority?

해설
With an ANC of 200 cells/mm³, the client is at high risk for life-threatening infections, making neutropenic precautions the highest priority to prevent pathogen exposure. Other interventions (breathing exercises, fluid monitoring, antiemetics) are important but less urgent.

심화 해설

Core Nursing Explanation This question tests the nurse's ability to prioritize care for a pediatric oncology patient based on the principle of Maslow's Hierarchy of Needs and the ABCs (Airway, Breathing, Circulation), with a critical extension for immunocompromised patients: Infection Risk. The core concept is managing Severe Neutropenia, a life-threatening complication of chemotherapy. Key Concept Analysis Acute Lymphoblastic Leukemia (ALL) is a cancer of the white blood cells, specifically the lymphocytes. Chemotherapy targets rapidly dividing cells, including cancer cells, but also suppresses the bone marrow's production of healthy blood cells, including neutrophils. The Absolute Neutrophil Count (ANC) is the most important indicator of infection risk. An ANC of 200 cells/mm³ indicates Key Point! severe neutropenia, placing the child at extreme risk for opportunistic and potentially fatal infections. The body's first line of defense (skin, mucous membranes) is intact, but the second line (inflammatory/immune response) is critically impaired. Answer Rationale The highest priority is Implement strict neutropenic precautions immediately. This is a Key Point! life-saving intervention that directly addresses the most immediate and severe threat to the patient's safety. Neutropenic precautions (also called protective isolation or reverse isolation) aim to minimize the patient's exposure to pathogens. Key components include: * Strict hand hygiene for everyone entering the room. * Private room, if possible. * Limiting visitors and screening them for illness. * Prohibiting fresh flowers/plants and standing water. * Meticulous personal hygiene for the patient. * Avoiding rectal temperatures and injections. * Ensuring a low-microbial diet. Distractor Analysis Watch out for confusion! All other options are relevant to chemotherapy care but are secondary to preventing a life-threatening infection. * Option 1 (Deep breathing exercises): Important to prevent atelectasis and pneumonia, especially if the child is less mobile. However, it is a preventive measure for a potential respiratory complication, whereas the risk of systemic infection from neutropenia is an active and present danger. * Option 2 (Monitor I&O): Crucial for assessing hydration, kidney function, and tumor lysis syndrome risk. Monitoring every 8 hours is a standard frequency, not an immediate, high-priority intervention for the identified critical problem. * Option 3 (Administer antiemetics): Manages the common side effect of nausea/vomiting from chemotherapy, improving comfort and nutritional intake. While important for quality of life and preventing dehydration/electrolyte imbalance, it does not trump the priority of infection prevention in this scenario. Related Concepts Nursing priorities are guided by potential for harm. Infection in a neutropenic patient can lead to Sepsis rapidly, which is a circulatory emergency (affects the "C" in ABCs). Therefore, preventing the infection is the top-tier intervention. The NCLEX often tests the nurse's ability to identify the patient with the greatest risk for the most harm.
Concept Summary * Absolute Neutrophil Count (ANC): Calculated as (Total WBC) x (%Segs + %Bands). It is the key lab value for infection risk. * Neutropenia Grading: * Mild: ANC 1000-1500 cells/mm³ * Moderate: ANC 500-1000 cells/mm³ * Severe: ANC < 500 cells/mm³ (The patient's ANC of 200 is in the severe range). * Febrile Neutropenia: A single oral temperature of ≥ 38.3°C (101°F) or ≥ 38.0°C (100.4°F) sustained over 1 hour in a neutropenic patient. This is an ONCOLOGIC EMERGENCY requiring immediate blood cultures and broad-spectrum IV antibiotics. * Nursing Process: Assessment (ANC level) → Nursing Diagnosis (Risk for Infection) → Planning (Prevent exposure) → Implementation (Neutropenic precautions) → Evaluation (Monitor for fever/signs of infection).
Side-by-Side Comparison!
InterventionPrimary GoalPriority in Severe Neutropenia
Neutropenic PrecautionsPrevent pathogen exposure and infection.HIGHEST PRIORITY - Addresses immediate life threat.
Deep Breathing ExercisesPrevent pulmonary complications (atelectasis, pneumonia).Important but secondary. Infection can come from any source, not just lungs.
Fluid Intake/Output MonitoringMaintain hydration, assess renal function, monitor for tumor lysis.Core supportive care, but not the most urgent action for ANC of 200.
Antiemetic AdministrationManage nausea/vomiting, promote comfort & nutrition.Symptom management. Does not mitigate the primary risk of infection.

Anatomy, Physiology & Pharmacology Points * Physiology: Neutrophils are the body's primary defense against bacterial and fungal infections. They are the first responders to sites of inflammation. * Pharmacology (Chemotherapy): Myelosuppression (bone marrow suppression) is a common, dose-limiting side effect of many chemotherapeutic agents. It causes anemia (low RBCs), thrombocytopenia (low platelets), and neutropenia (low neutrophils). * Pharmacology (Supportive Care): Drugs like Filgrastim (G-CSF) may be prescribed to stimulate the bone marrow to produce more neutrophils and shorten the duration of neutropenia.
Memory Tips * ANC Danger Zone: "Below 500, take cover!" Think of it as the immune system's "red alert" level. * Priority Mnemonic: "**A**irway, **B**reathing, **C**irculation, **D**eath (Risk of)". For immunocompromised patients, the risk of fatal infection is a "D" (death) level threat that supersedes many other B and C level concerns. * Neutropenic Precautions: Remember "**H**and hygiene, **H**ealthy visitors, **H**ealthy food (low-microbial), **H**ealthy environment (clean)."
High-Frequency NCLEX Topics This is a classic NCLEX question combining pediatrics, oncology, lab values, and prioritization. You must know: 1. How to interpret ANC values. 2. That severe neutropenia is a top-priority condition. 3. The specific actions involved in neutropenic precautions. 4. The signs of febrile neutropenia as an emergency.
Watch Out for Question Variations! * Shift from Intervention to Assessment: "The nurse is caring for a child with ALL and neutropenia. Which finding requires immediate intervention?" (Answer: Fever of 101.5°F / 38.6°C). * Shift to Patient Education: "Which instruction is most important for the parents of a neutropenic child being discharged?" (Answer: Report any fever immediately and avoid crowded places). * Adding a Symptom: If the question added "and has a temperature of 39°C (102.2°F)", the priority would shift to obtaining blood cultures and administering IV antibiotics per febrile neutropenia protocol.

임상 시나리오

Nursing Clinical Practice Guide Clinical Scenario You are the nurse on the pediatric oncology unit. Your patient, a 12-year-old named Alex, finished a round of chemotherapy for ALL three days ago. The morning lab results show an ANC of 200. Alex is currently afebrile and playing a video game but complains of mild fatigue. Nursing Intervention Strategy 1. Assessment: Immediately upon receiving the lab result, perform a focused assessment. Check vital signs, especially temperature. Assess oral mucosa, skin integrity, and IV sites for any signs of infection (redness, swelling, drainage). Ask about sore throat, cough, or pain with urination. 2. Planning & Implementation (Priority): * Initiate Neutropenic Precautions: Place a "Neutropenic Precautions" sign on the door. Ensure a private room or cohort with another neutropenic patient. Educate Alex and the family on the reasons for the precautions. Emphasize hand hygiene for everyone. * Environmental Safety: Remove any fresh flowers or fruit baskets. Ensure the room is cleaned daily with hospital-grade disinfectant. * Dietary Modifications: Consult with dietary services to provide a low-microbial or "neutropenic diet" (e.g., no raw fruits/vegetables, well-cooked meats, only pasteurized dairy). 3. Monitoring & Evaluation: Monitor temperature every 4 hours (or per protocol). Assess for any new signs/symptoms of infection at least every shift. Evaluate the family's understanding of the precautions. Patient Safety and Precautions * Contraindications/Actions to Avoid: Do NOT take rectal temperatures or give rectal medications (suppositories). Avoid IM injections if possible. Do not use indwelling urinary catheters unless absolutely necessary. * Medication Administration: If antibiotics or antifungals are prescribed for prophylaxis or treatment, administer them on time to maintain therapeutic blood levels. * Key Monitoring Point: Key Point! A single fever in this population is an emergency. The threshold is typically 38.3°C (101°F) once, or 38.0°C (100.4°F) sustained for one hour. This requires immediate notification of the provider, blood cultures (from all lumens of a central line if present, plus peripheral), and prompt administration of empiric broad-spectrum IV antibiotics.
Nursing Procedure & Medication Flow Procedure: Responding to Febrile Neutropenia 1. Verify fever and ANC level. 2. Notify the physician/advanced practice provider IMMEDIATELY. 3. Obtain blood culture specimens as ordered (usually from all ports of a central venous access device and one peripheral stick). 4. Administer prescribed broad-spectrum IV antibiotics (e.g., piperacillin-tazobactam, cefepime) within 60 minutes of fever recognition. This is a core quality measure. 5. Continue frequent vital sign monitoring and comprehensive assessment. A Word from Your Senior Nurse "Caring for a neutropenic child requires a vigilant, protective mindset. You are their shield. That ANC number isn't just a lab value; it's a direct measure of their vulnerability. In practice, your keen assessment skills are critical—sometimes the only sign of a serious infection in a neutropenic patient is a subtle fever or a slight change in behavior. When you study for the NCLEX, always ask yourself: 'What is the worst thing that could happen to this patient right now?' For Alex with an ANC of 200, it's a catastrophic infection. Your priority action is always the one that prevents that worst outcome. This clinical reasoning will make you a safe and excellent nurse."

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