A nurse is caring for a 65-year-old client with stage IIIB n… | 마이메르시 MyMerci
Adult Health
문제

A nurse is caring for a 65-year-old client with stage IIIB non-small cell lung cancer who is receiving chemotherapy. Which nursing intervention should be the priority when the client develops neutropenia with an absolute neutrophil count (ANC) of 800/mm³?

The client reports feeling fatigued and has developed a low-grade fever of 100.2°F (37.9°C).
해설
Neutropenia with ANC

심화 해설

Core Nursing Explanation Key Concept Analysis: This question tests the priority nursing intervention for a patient with Neutropenia (low neutrophil count) who is receiving chemotherapy and has developed a fever. The core theme is Oncologic Emergencies and Infection Risk. In oncology nursing, Key Point! fever in a neutropenic patient is a medical emergency because the patient's immune system is severely compromised and cannot mount an adequate response to infection. An Absolute Neutrophil Count (ANC) of 800/mm³ (normal is > 1500/mm³) indicates severe neutropenia, placing the patient at high risk for life-threatening sepsis.

Answer Rationale: The priority intervention is Implement strict neutropenic precautions immediately to prevent infection. This is the first and most critical action because it directly addresses the immediate, life-threatening risk. Neutropenic precautions (also called protective isolation or reverse isolation) include actions like placing the patient in a private room, enforcing strict hand hygiene, restricting visitors with infections, and avoiding fresh flowers or unpeeled raw fruits/vegetables. The presence of a fever (100.2°F / 37.9°C) in this context is a "red flag" that requires immediate action to protect the patient from further exposure while diagnostic workup (e.g., blood cultures) and treatment (e.g., broad-spectrum antibiotics) are initiated.

Distractor Analysis: Watch out for confusion! While all options are appropriate nursing actions for a patient undergoing chemotherapy, they are not the priority given the specific, urgent presentation of fever with neutropenia.
  • Option 1 (Encourage fluids): Important for managing fever and preventing dehydration, but it is a supportive measure. It does not address the primary threat of potential systemic infection.
  • Option 3 (Administer antiemetics): Crucial for managing chemotherapy side effects like nausea and vomiting, but the scenario does not mention these symptoms. The priority is the active problem (fever + neutropenia).
  • Option 4 (Provide emotional support): Vital for holistic cancer care, but patient safety (preventing a fatal infection) takes precedence over psychosocial needs in this acute situation.
Related Concepts: The principle of Maslow's Hierarchy of Needs and the ABCs (Airway, Breathing, Circulation) guide priority-setting. Here, the physiological need for safety from infection (a threat to circulation and ultimately survival) is paramount. The NCLEX often tests the nurse's ability to recognize Key Point! "fever + neutropenia = oncologic emergency."

Concept Summary
ConceptKey Takeaway
NeutropeniaANC < 1000/mm³ = increased infection risk. ANC < 500/mm³ = severe risk.
Febrile NeutropeniaSingle oral temp of ≥ 38.3°C (101°F) or ≥ 38.0°C (100.4°F) for >1 hour in a neutropenic patient. Requires immediate intervention.
Neutropenic PrecautionsProtective isolation. Goal: Minimize exposure to pathogens. Includes private room, strict hand hygiene, no sick visitors, no fresh plants/flowers.
Nursing PrioritySafety first! In neutropenic fever, infection prevention/control and initiating emergency protocols (e.g., blood cultures, antibiotics) are top priority.

Side-by-Side Comparison!
InterventionPriority in This ScenarioRationale
Strict Neutropenic PrecautionsHIGHEST PRIORITYDirectly addresses the life-threatening risk of sepsis from infection in an immunocompromised host.
Increase Fluid IntakeImportant but SecondarySupports management of fever and prevents dehydration, but does not treat the cause or prevent new exposure.
Administer AntiemeticNot a Priority HereAddresses a common chemo side effect, but no data suggests it's needed now. The active problem is fever/neutropenia.
Provide Emotional SupportAlways Important, Not Acute PriorityAddresses psychosocial needs, which are addressed after physiological safety is ensured.

Anatomy, Physiology & Pharmacology Points
  • Physiology: Neutrophils are the body's first line of defense against bacterial and fungal infections. Chemotherapy suppresses bone marrow function, leading to Myelosuppression and neutropenia.
  • Pharmacology: Patients may receive Colony-Stimulating Factors (CSFs) like filgrastim to boost neutrophil production. In febrile neutropenia, empiric broad-spectrum IV antibiotics are started immediately, often before culture results are known.
  • Lab Value: Absolute Neutrophil Count (ANC) = (%Segs + %Bands) x Total WBC count. It's a more accurate measure of infection risk than total WBC alone.

Memory Tips
  • Mnemonic: "Fever + Neutropenia = Find Need for Fast Nursing action!"
  • Think: No neutrophils = No defense. Fever = Likely infection. No defense + Infection = Medical Emergency.
  • Rule of 1000 & 500: ANC < 1000 = Caution. ANC < 500 = Danger Zone! Act immediately.

High-Frequency NCLEX Topics This is a Classic High-Yield NCLEX Question. The exam repeatedly tests:
  1. Recognizing Febrile Neutropenia as an Oncologic Emergency.
  2. Knowing the priority action: Infection Control/Precautions FIRST.
  3. Understanding that psychosocial care, while integral, follows physiological stabilization in an acute crisis.

Watch Out for Question Variations!
  • Symptom Change: "Which finding requires immediate intervention?" (Answer: Fever or chills).
  • Intervention Focus: "The nurse should initiate which protocol?" (Answer: Neutropenic precautions/sepsis protocol).
  • Teaching Focus: "What is the priority discharge teaching for a neutropenic patient?" (Answer: How to prevent infection, recognize fever, and when to call the doctor).
  • Lab Value Calculation: They may give you WBC differential percentages and ask you to calculate the ANC to determine infection risk.

임상 시나리오

Nursing Clinical Practice Guide Clinical Scenario: You are the nurse on an oncology unit. Mr. Johnson, a 65-year-old with lung cancer, is 7 days post-chemotherapy cycle. He tells you, "I just feel so tired and a bit achy." Your initial assessment reveals a temperature of 100.2°F (37.9°C). You check his latest lab results and see an ANC of 800/mm³.

Nursing Intervention Strategy:
  1. Immediate Action (Within Minutes):
    • Place the patient in a private room immediately.
    • Initiate Strict Neutropenic Precautions: Place signage, ensure all staff and visitors perform hand hygiene with soap and water or alcohol-based gel before entering.
    • Notify the physician/NP STAT about the fever and low ANC.
    • Obtain orders for and prepare to draw blood cultures x2 (from different sites, ideally before starting antibiotics) and other labs (CBC, chemistry).
    • Anticipate orders for empiric broad-spectrum IV antibiotics (e.g., a combination like piperacillin-tazobactam).
  2. Ongoing Assessment & Care:
    • Monitor vital signs frequently (every 4 hours or more often if unstable).
    • Perform a thorough head-to-toe assessment, looking for subtle signs of infection (e.g., mouth sores, skin breakdown, perianal tenderness, cough, cloudy urine).
    • Encourage oral fluids as tolerated to manage fever and maintain hydration.
    • Provide antipyretics as ordered (e.g., acetaminophen), but avoid masking the fever if it's a key monitoring parameter.
  3. Patient & Family Education:
    • Explain why the precautions are necessary in simple terms: "Your infection-fighting cells are very low right now, so we need to be extra careful to protect you from germs."
    • Instruct on meticulous personal hygiene.
    • Teach the patient to report any new symptoms immediately (chills, sore throat, cough, pain, etc.).
Patient Safety and Precautions:
  • Contraindications/Avoid: Do NOT administer live vaccines (e.g., MMR, varicella). Do NOT use rectal thermometers or suppositories (risk of mucosal injury and bacteremia). Avoid IM injections if possible.
  • Medication Cautions: Administer antibiotics on time to maintain therapeutic blood levels. Be vigilant for side effects like allergic reactions or C. difficile infection.
  • Key Monitoring Points: Trends in temperature, vital signs, ANC results, and the patient's overall clinical status (e.g., mentation, skin turgor).

Nursing Procedure & Medication Flow Procedure: Initiating Neutropenic Precautions 1. Don appropriate PPE (usually just good hand hygiene is key; gown/gloves if contact with bodily fluids is anticipated).
2. Place patient in a private, positive-pressure room if available (keeps airborne pathogens out).
3. Post clear signage on the door.
4. Remove fresh flowers/plants from the room.
5. Ensure the patient's diet is a low-bacterial diet (no raw fruits/vegetables, uncooked spices, undercooked meat/eggs).
6. Screen all visitors for signs of illness.

Medication: Administering Empiric Antibiotics - Route: Almost always IV for rapid and reliable effect. - Timing: Administer the first dose as soon as possible, ideally within 60 minutes of recognition of febrile neutropenia. - Monitoring: Watch for infusion reactions. Monitor renal function (many antibiotics are nephrotoxic).

A Word from Your Senior Nurse "Nursing is not just about carrying out physician orders — it's about being the frontline guardian for your patients! In clinical practice, recognizing subtle changes like a low-grade fever in a chemo patient is a critical nursing judgment. You are the one at the bedside who connects the dots between the patient's complaint of fatigue and that slightly elevated temperature. Acting swiftly to implement neutropenic precautions and alert the team can literally save a life by preventing progression to septic shock. When studying for your boards, don't just memorize 'neutropenia = precautions' — internalize the 'why': because your patient has no army to fight invaders, so you become their shield. That mindset will not only earn you a great score on the NCLEX but will make you a truly confident, professional nurse!"

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