A 9-year-old child with acute lymphoblastic leukemia (ALL) i… | 마이메르시 MyMerci
Adult Health
문제

A 9-year-old child with acute lymphoblastic leukemia (ALL) is receiving chemotherapy and has developed severe neutropenia with an absolute neutrophil count (ANC) of 100/mm³. The child's temperature is 101.2°F (38.4°C). Which nursing intervention should be the highest priority?

해설
In neutropenic patients with fever, immediate isolation and rapid antibiotic initiation are critical to prevent life-threatening sepsis. Other options delay treatment or are less urgent.

심화 해설

Core Nursing Explanation Key Concept Analysis: This question tests the critical nursing priority for a febrile neutropenic patient. Neutropenia (low neutrophil count) means the patient has a severely compromised immune system and cannot mount an effective inflammatory response to fight infection. A fever in this context is a medical emergency, as it may be the only sign of a life-threatening infection (sepsis). The standard of care is to treat any fever in a neutropenic patient as a presumed infection until proven otherwise and to initiate broad-spectrum IV antibiotics immediately to prevent rapid clinical deterioration.

Answer Rationale: Key Point! The highest priority is to protect the patient from a potentially fatal infection. Option ③ correctly identifies the two most urgent actions: Initiate immediate isolation precautions (to protect the immunocompromised child from further exposure) and notify the oncologist for emergency antibiotic orders. Delaying antibiotics to first give antipyretics or obtain cultures can be deadly. In febrile neutropenia, "time to antibiotics" is a critical quality metric.

Distractor Analysis:
Watch out for confusion! Option ① (Administer acetaminophen) is incorrect because masking the fever with antipyretics can obscure the only clinical sign of infection and delay critical treatment. Fever management is secondary to identifying and treating the underlying cause.
• Option ② (Obtain blood cultures) is an important diagnostic step but should not delay antibiotic administration. The priority is to start antibiotics first, ideally within one hour of presentation. Cultures can be drawn concurrently or immediately after antibiotic initiation.
• Option ④ (Encourage fluids) is a supportive measure for any febrile patient but is not the priority intervention in this life-threatening scenario. Comfort measures are important but do not address the imminent risk of sepsis.

Related Concepts: This scenario illustrates the principle of "Fever + Neutropenia = Oncologic Emergency." The Absolute Neutrophil Count (ANC) of 100/mm³ indicates severe neutropenia (ANC < 500/mm³). Nursing care focuses on infection prevention, early detection, and rapid response.
Concept SummaryFebrile Neutropenia: A temperature of ≥ 38.3°C (101°F) or a sustained temperature ≥ 38.0°C (100.4°F) for one hour in a patient with an ANC < 500 cells/mm³.
Absolute Neutrophil Count (ANC) Calculation: ANC = WBC count × (%Segmented Neutrophils + %Bands).
Nursing Priority (ABCs modified): In immunocompromised patients, infection control and rapid antibiotic administration become a top-tier priority alongside airway, breathing, and circulation.
Side-by-Side Comparison!
InterventionPriority in Febrile NeutropeniaRationale
Notify MD & Start IV AntibioticsHIGHEST PRIORITYPrevents progression to septic shock. Delay increases mortality.
Obtain Blood CulturesHigh (but do not delay antibiotics)Identifies pathogen for targeted therapy. Draw before antibiotics if possible, but do not wait.
Administer Antipyretics (e.g., Acetaminophen)Low / SupportiveMay mask fever. Use cautiously per protocol, not as first action.
Initiate Protective IsolationHigh (Concurrent Action)Prevents new exposures. Includes private room, strict hand hygiene, no fresh flowers/plants.

Anatomy, Physiology & Pharmacology PointsPhysiology: Neutrophils are the body's first-line defense against bacterial and fungal infections. Severe neutropenia (ANC < 500) obliterates this defense.
Pathophysiology: The inflammatory response is blunted. A patient may have a serious infection (e.g., bacteremia) with only a mild fever and no other classic signs like pus, redness, or swelling.
Pharmacology: Empiric broad-spectrum antibiotics (e.g., Piperacillin-tazobactam, Cefepime, Meropenem) are started to cover both Gram-positive and Gram-negative organisms, including Pseudomonas aeruginosa.
Memory TipsMnemonic: "FEVER in NEUTROPENIA = GO!" (Fever + Extremely low neutrophils = Get Orders (for antibiotics)!).
• Think: "Time is Tissue" in heart attacks. In febrile neutropenia, "Time is Life". Every minute of delay counts.
High-Frequency NCLEX Topics This is a classic NCLEX priority question. The exam consistently tests the nurse's ability to recognize oncologic emergencies and act swiftly. You must know that fever in a patient receiving chemotherapy (especially with known neutropenia) is an automatic trigger for immediate action, overriding other routine nursing cares.
Watch Out for Question Variations! • The question could shift from "highest priority intervention" to "which finding requires immediate notification of the provider?" (Answer: Fever in a neutropenic patient).
• It could ask about protective vs. neutropenic precautions (e.g., "Which item is allowed in the patient's room?" – Answer: Items that can be thoroughly cleaned, not fresh fruits/plants).
• It could combine with medication administration ("The provider orders IV antibiotics. The pharmacy says they will be ready in 45 minutes. What should the nurse do?" – Answer: Advocate for immediate preparation or use of stat doses; a 45-minute delay is unacceptable).

임상 시나리오

Nursing Clinical Practice Guide Clinical Scenario: You are the nurse on the pediatric oncology unit. Your patient, a 9-year-old with ALL who finished a chemotherapy cycle 10 days ago, seems a bit lethargic. You take their vital signs: Temp 38.5°C (101.3°F), HR 120, RR 24. You immediately check the morning lab results and see the ANC is 80/mm³. The child has no cough, no localized redness, and says they just feel tired.

Nursing Intervention Strategy:
1. Immediate Action (Within Minutes): Place the child in a private room. Put on a sign for Neutropenic Precautions (also called Protective Isolation). Call the oncologist or hospitalist immediately at the bedside phone. Report: "This is Nurse [Your Name] calling about [Patient Name], room [X]. I have a febrile neutropenia alert: temp 38.5, ANC 80."
2. Concurrent Actions: While waiting for orders, prepare to:
• Obtain blood cultures (usually two sets from different sites, one from the central line if present and one peripheral).
• Start a normal saline IV lock if not already in place.
• Do not administer acetaminophen unless specifically ordered after the MD is notified.
3. Upon Receiving Orders: The order will likely be "Administer [Broad-spectrum antibiotic] IV STAT." Verify the order, perform the five rights of medication administration, and administer the antibiotic as quickly as possible, ideally within 60 minutes of your initial fever assessment.
4. Ongoing Monitoring: After antibiotics are initiated, monitor vital signs closely (every 15-30 minutes initially), assess for signs of septic shock (hypotension, tachycardia, altered mental status), and provide supportive care (fluids, comfort).

Patient Safety and Precautions:
Infection Control: Everyone entering the room must perform meticulous hand hygiene. No one with any signs of illness (even a cold) should care for the patient. Limit visitors.
Medication Caution: Avoid rectal medications (risk of mucosal injury and bacteremia). Be cautious with IM injections (risk of abscess formation).
Environmental: No fresh flowers, plants, or standing water. Ensure the child's diet is low-bacterial (no raw fruits/vegetables, undercooked meat).
Nursing Procedure & Medication Flow Procedure: Managing Febrile Neutropenia
1. Assess: Vital signs, especially temperature. Review most recent CBC with differential.
2. Recognize: Fever (≥38.3°C once or ≥38.0°C for 1hr) + ANC

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