A nurse is caring for a client with HIV/AIDS who has a CD4+ T-cell count of 180 cells/mm³. Which nursing intervention should be the highest priority to ensure client safety?

1 Encourage the client to maintain social activities to prevent depression
2 Provide a high-protein diet to improve nutritional status
3 Implement strict infection control precautions and protective isolation measures ✓ 정답
4 Administer prescribed antiretroviral medications on schedule

해설

With a CD4+ T-cell count of 180 cells/mm³, the client is severely immunocompromised, making strict infection control and protective isolation the highest priority to prevent life-threatening opportunistic infections. Other interventions are important but do not address the immediate safety risk.

심화 해설

Core Nursing Explanation Key Concept Analysis: This question assesses the priority nursing intervention for a patient with HIV/AIDS who is severely immunocompromised. The key data point is the CD4+ T-cell count of 180 cells/mm³. CD4+ T-cells are the primary target of the Human Immunodeficiency Virus (HIV). A normal count is typically 500–1,600 cells/mm³. A count below 200 cells/mm³ defines the progression to AIDS (Acquired Immunodeficiency Syndrome) and indicates a high risk for opportunistic infections (OIs). The core nursing principle here is Maslow's Hierarchy of Needs and safety and security. The most immediate threat to the patient's life is infection.

Answer Rationale: Key Point! The highest priority is Implement strict infection control precautions and protective isolation measures. This directly addresses the patient's greatest vulnerability—a severely weakened immune system—and is a primary prevention strategy to avoid life-threatening infections. It is a fundamental safety intervention that protects the patient from environmental pathogens.

Distractor Analysis:

Option 1 (Encourage social activities): While psychosocial support is a crucial part of holistic care for chronic illness, it addresses higher-level needs (love/belonging, self-esteem) and is not the priority when the patient's physiological safety from infection is at immediate risk.
Option 2 (High-protein diet): Nutritional support is important for maintaining strength and immune function, but it is a supportive, long-term intervention. It does not provide the immediate, direct protection against pathogens that infection control does.
Option 3 (Implement infection control): Key Point! This is the correct answer. It is the most direct action to ensure client safety by preventing exposure to infectious agents.
Option 4 (Administer antiretrovirals): Adherence to Antiretroviral Therapy (ART) is the cornerstone of HIV management and helps raise the CD4 count. However, administering a scheduled medication is a routine intervention. The question asks for the highest priority to ensure client safety in the context of their current, critically low immune status. Preventing new infections takes precedence over the administration of a treatment that works over time.

Related Concepts: This integrates knowledge of HIV pathophysiology, laboratory interpretation (CD4 count and viral load), the nursing process (prioritization using frameworks like ABCs, Maslow's, or acute vs. chronic), and principles of infection prevention for immunocompromised hosts.

Concept Summary

Concept	Description	Nursing Implication
CD4+ T-cell Count	Marker of immune function in HIV. Count < 200 cells/mm³ = AIDS diagnosis.	Lower count = Higher infection risk. Guide for prophylaxis (e.g., for PJP).
Opportunistic Infections (OIs)	Infections that take advantage of weak immune systems (e.g., PJP, TB, CMV, candidiasis).	Priority nursing goal is prevention through infection control and patient education.
Protective Isolation (Neutropenic Precautions)	Infection control measures to protect a highly susceptible host from pathogens.	Includes private room, strict hand hygiene, no fresh flowers/plants, limiting visitors with illness, avoiding raw/undercooked foods.
Nursing Prioritization	Using frameworks to determine the most urgent need. Safety (infection risk) is a fundamental physiological need.	Maslow's Hierarchy: Physiological (airway, breathing, safety) needs come before psychosocial needs.

Side-by-Side Comparison!

Intervention	Priority Level for This Patient (CD4=180)	Rationale
Infection Control / Isolation	Highest Priority (Immediate Safety)	Directly prevents life-threatening OIs. Addresses the most immediate risk.
Administering ART	High Priority (Treatment Foundation)	Essential for long-term control but does not provide immediate protection from environmental pathogens.
Nutritional Support	Important (Supportive Care)	Addresses chronic need, supports immune function over time.
Psychosocial Support	Essential (Holistic Care)	Addresses quality of life but is not the immediate safety concern.

Anatomy, Physiology & Pharmacology Points

Pathophysiology: HIV binds to CD4 receptors on helper T-cells, integrates into the host DNA, and replicates, destroying the cells. This decimates the cell-mediated immune response, leaving the body defenseless against intracellular pathogens (viruses, fungi, some bacteria) and certain cancers.
Pharmacology (ART): ART regimens typically combine drugs from different classes (e.g., NRTIs, NNRTIs, PIs, Integrase Inhibitors) to suppress viral replication, allowing CD4 counts to recover and reducing OI risk. Watch out for confusion! ART manages the disease, but infection control protects the patient from consequences while immune-compromised.

Memory Tips

CD4 Count Mnemonic: "200 is the Door" to AIDS. Below 200, the door is open for serious Opportunistic Infections.
Priority Rule: "Safety First!" For any immunocompromised patient (HIV, chemotherapy, transplant), preventing infection is always a top-tier priority. Think: "What will kill the patient right now?" → Infection.

High-Frequency NCLEX Topics The NCLEX-RN loves testing prioritization and safety for vulnerable populations. HIV/AIDS questions often combine: 1. Interpreting lab values (CD4, Viral Load). 2. Identifying the greatest risk or priority need based on those values. 3. Selecting appropriate infection control measures (Standard vs. Transmission-Based Precautions). 4. Patient education topics (medication adherence, signs of OIs, safe sex practices).

Watch Out for Question Variations!

Symptom-Based: "A client with AIDS presents with fever, dyspnea, and dry cough. The nurse suspects Pneumocystis jirovecii pneumonia (PJP). Which action is priority?" (Answer: Ensure airway/oxygenation and prepare for diagnostic tests).
Medication Focus: "Which finding in a client taking Zidovudine (AZT) requires immediate intervention?" (Answer: Signs of severe bone marrow suppression: fever, sore throat, bruising).
Education Focus: "What is the most important teaching point for a client with a new HIV diagnosis and a CD4 count of 350?" (Answer: Adherence to ART to maintain immune function and prevent progression).

임상 시나리오

Nursing Clinical Practice Guide Clinical Scenario: You are assigned to care for Mr. Johnson, a 42-year-old male admitted with weakness and weight loss. He has a known history of HIV and his latest labs show a CD4 count of 180 cells/mm³ and a high viral load. He is placed in a private room.

Nursing Intervention Strategy:

Assessment: Perform a thorough head-to-toe assessment with a focus on early signs of infection (fever, chills, new cough, dyspnea, skin lesions, oral thrush, diarrhea). Monitor vital signs every 4 hours. Review lab trends (CBC with differential, CD4, viral load).
Nursing Diagnosis: Risk for Infection related to immunosuppression.
Planning & Implementation:
- Infection Control: Implement Protective Isolation (Neutropenic Precautions). Don gown and gloves upon room entry (per facility policy). Ensure all staff and visitors perform meticulous hand hygiene. Prohibit visitors with any signs of illness. Remove fresh flowers and potted plants from the room.
- Environmental Safety: Ensure the room is cleaned daily with disinfectant. Avoid dust-raising activities.
- Patient Hygiene: Assist with daily bathing and meticulous oral care. Use a soft-bristle toothbrush to prevent mucosal injury.
- Dietary Modifications: Collaborate with dietary services to provide a high-calorie, high-protein diet. Ensure all foods are well-cooked; eliminate raw fruits/vegetables (unless they can be peeled by the patient), raw eggs, and undercooked meats to prevent foodborne illness.
- Medication Administration: Administer ART on a strict schedule to maintain therapeutic levels and prevent resistance. Administer any prescribed prophylactic antibiotics (e.g., Trimethoprim-sulfamethoxazole for PJP prevention).
Evaluation: The patient remains afebrile, with no new signs or symptoms of infection. The patient and family verbalize understanding of infection prevention measures.

Patient Safety and Precautions:

Visitors: Screen all visitors. Limit to essential, healthy individuals.
Invasive Procedures: Use strict aseptic technique for any IV starts, wound care, or catheter insertion.
Medication Vigilance: Be aware of overlapping toxicities of ART (e.g., bone marrow suppression, hepatotoxicity, peripheral neuropathy). Monitor labs accordingly.

Nursing Procedure & Medication Flow Protective Isolation Procedure: 1. Signage: Place appropriate isolation sign on door. 2. PPE: Perform hand hygiene. Don a gown and gloves before entering the room. 3. Patient Care: Provide care, minimizing the time doors are open. 4. PPE Removal & Exit: Remove gloves and gown inside the room, discard in designated receptacle. Perform hand hygiene before exiting. 5. Equipment: Dedicate equipment (e.g., blood pressure cuff, thermometer) to the room if possible. If not, clean and disinfect thoroughly before use on another patient.

ART Administration Points:

Adherence is Critical: Educate that >95% adherence is needed to prevent viral resistance. Use pill organizers, alarms, or directly observed therapy if needed.
Food Interactions: Some ART must be taken with food (e.g., Ritonavir), others on an empty stomach (e.g., Didanosine). Know the specifics for each drug.
Side Effect Management: Proactively manage common side effects (nausea, diarrhea, rash) to improve adherence.

A Word from Your Senior Nurse "Caring for immunocompromised patients is a profound responsibility. Your vigilance in infection control is their primary shield. In practice, it's the little things—ensuring every single person who enters that room cleans their hands, questioning a slightly elevated temperature of 99.8°F (37.7°C), and teaching a family member how to safely prepare food at home. When you study for the NCLEX, remember that 'priority' almost always ties back to the most immediate threat to survival or safety. For an HIV patient with a low CD4, that threat is infection. Connect the lab value to the risk, and the risk to the nursing action. This clinical reasoning is what makes you a safe and effective nurse from day one."

핵심 개념

CD4+ T-cell Count — A type of white blood cell (lymphocyte) that is a key coordinator of the immune response. It is the primary target of HIV. A count below 200 cells/mm³ indicates AIDS and severe immunodeficiency.
Opportunistic Infection — An infection caused by pathogens that typically do not cause disease in a host with a healthy immune system but take the "opportunity" to infect an immunocompromised host (e.g., Pneumocystis pneumonia, toxoplasmosis, candidiasis).
Protective Isolation (Neutropenic Precautions) — Infection control measures designed to protect a patient who is highly susceptible to infection (e.g., from neutropenia or immunodeficiency) from exposure to pathogens. Includes private room, strict hand hygiene, and environmental controls.
Antiretroviral Therapy — The combination of medications used to treat HIV infection. It suppresses viral replication, improves immune function (raises CD4 count), and reduces the risk of opportunistic infections and transmission.
Nursing Prioritization — The process of determining the order in which nursing actions should be performed based on the urgency and importance of patient needs. Common frameworks include Maslow's Hierarchy of Needs, ABCs (Airway, Breathing, Circulation), and acute vs. chronic problems.

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A nurse is caring for a client with HIV/AIDS who has a CD4+ T-cell count of 180 cells/mm³. Which nursing intervention should be the highest priority to ensure client safety?

심화 해설

임상 시나리오

핵심 개념

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