A pregnant client at 28 weeks gestation with HIV infection comes to the prenatal clinic for routine follow-up. The nurse is reviewing the client's laboratory results. Which laboratory finding would be the most critical for the nurse to assess and report immediately to the healthcare provider?

1 Hemoglobin level of 10.2 g/dL
2 White blood cell count of 4,500/mm³
3 CD4+ T-cell count of 180 cells/mm³ ✓ 정답
4 Platelet count of 150,000/mm³

해설

CD4+ T-cell count of 180 cells/mm³ indicates severe immunosuppression, requiring immediate intervention to prevent opportunistic infections and optimize maternal-fetal outcomes. Other lab values are within normal or expected ranges for pregnancy.

심화 해설

Core Nursing Explanation Key Concept Analysis: This question tests the nurse's ability to prioritize laboratory findings in a pregnant client with Human Immunodeficiency Virus (HIV) infection. The core concept is understanding the pathophysiology of HIV and its specific implications for pregnancy. HIV targets and destroys CD4+ T-lymphocytes (Helper T-cells), which are central to the immune system's ability to fight infections. The CD4+ T-cell count is the primary marker for assessing the degree of immunosuppression and the risk of developing opportunistic infections (OIs). In pregnancy, a low CD4+ count not only endangers the mother but also increases the risk of vertical transmission (mother-to-child transmission, MTCT) of HIV to the fetus.

Answer Rationale: A CD4+ count of 180 cells/mm³ is critically low. According to the CDC classification, a count below 200 cells/mm³ defines AIDS (Acquired Immunodeficiency Syndrome) and indicates Key Point! severe immunosuppression. This finding is the most critical because it necessitates immediate medical intervention, such as initiating or adjusting Antiretroviral Therapy (ART) and starting prophylaxis for opportunistic infections (e.g., Pneumocystis jirovecii pneumonia - PCP). Prompt action is vital to protect the mother's health and significantly reduce the risk of vertical transmission to the fetus.

Distractor Analysis:
Watch out for confusion! Option ①: A Hemoglobin of 10.2 g/dL is within the expected range for the physiologic anemia of pregnancy due to hemodilution. While it should be monitored, it is not an immediate, critical finding.
Option ②: A White Blood Cell (WBC) count of 4,500/mm³ is within the normal range. Pregnancy often causes a mild leukocytosis, so this value is not alarming.
Option ④: A Platelet count of 150,000/mm³ is within the normal range (150,000-400,000/mm³). It does not indicate thrombocytopenia and is not a critical finding.

Related Concepts: The management of HIV in pregnancy is a cornerstone of preventing perinatal transmission. Key strategies include universal prenatal HIV testing, prompt initiation of ART (regardless of CD4 count or viral load), scheduled Cesarean delivery if the viral load is high near delivery, avoidance of breastfeeding in resource-rich settings, and administration of antiretroviral prophylaxis to the newborn.

Concept Summary

Concept	Description & Implication
CD4+ T-cell Count	Primary marker of immune status in HIV. 임상 시나리오 Nursing Clinical Practice Guide Clinical Scenario: You are a nurse in a prenatal clinic. Maria, a 28-year-old at 28 weeks gestation, has been living with HIV for 3 years. She has been on ART but admits to missing doses occasionally due to nausea. Today, her lab results are back. Nursing Intervention Strategy: 1. Assessment: Immediately review the CD4 count and viral load. Assess Maria for any current signs of infection (fever, cough, shortness of breath, skin lesions, oral thrush). Perform a thorough medication history to assess adherence barriers. 2. Action: Report the critically low CD4 count (180 cells/mm³) to the healthcare provider (physician or midwife) immediately. Collaborate on the plan, which will likely include: re-evaluating her ART regimen, initiating or adjusting PCP prophylaxis (e.g., Trimethoprim-Sulfamethoxazole), and possibly scheduling more frequent visits. 3. Education & Support: Use a non-judgmental approach to counsel on the vital importance of >95% ART adherence for her health and to protect her baby. Discuss strategies for managing side effects (taking meds with food, antiemetics). Educate on signs of OIs to report immediately. 4. Evaluation: Monitor for symptom resolution or development. Follow-up labs (CD4, viral load) will be key indicators of intervention effectiveness. Patient Safety and Precautions: * Key Point! Drug Interactions: Many ART drugs have interactions. A classic example: Efavirenz (an NNRTI) is contraindicated in the first trimester due to teratogenic risk. Always verify the safety of the regimen in pregnancy. * Infection Prevention: The patient is at high risk for infections. Advise avoiding crowded places, sick contacts, and ensure vaccinations are up-to-date (inactivated vaccines only; no live vaccines like MMR or Varicella). Nursing Procedure & Medication Flow Medication Administration (ART): * Adherence is everything. Use pill organizers, set phone alarms, link dosing to a daily routine. * Teach about side effects: Nausea, rash, fatigue, liver toxicity. Instruct to report severe rash, yellowing of skin/eyes, or dark urine immediately. * Administration: Some drugs must be taken on an empty stomach, others with food. Know the specifics of the prescribed regimen (e.g., Atazanavir requires food). A Word from Your Senior Nurse "Managing HIV in pregnancy is one of the great success stories of modern medicine. We've gone from a near-certainty of transmission to a less than 1% chance with proper treatment. Your role is pivotal. You are the one who builds the trusting relationship that promotes medication adherence. You are the one who catches that critically low CD4 count and sounds the alarm. Never underestimate the power of thorough assessment and patient education. You're not just following orders; you're actively protecting two lives." 마이메르시로 국가고시 완벽 대비 기출문제와 상세 해설을 무료로. 내 약점을 분석하고 진도를 관리하며 더 똑똑하게 공부하세요. 무료로 시작하기 App Store Google Play 학습 참고용입니다. 실제 임상은 최신 지침과 소속 기관 프로토콜을 따르세요. 같은 주제 문제 A pregnant client at 32 weeks gestation with HIV infection presents for routine prenatal c…

Concept

Description & Implication

CD4+ T-cell Count

Primary marker of immune status in HIV.

임상 시나리오

Nursing Clinical Practice Guide Clinical Scenario: You are a nurse in a prenatal clinic. Maria, a 28-year-old at 28 weeks gestation, has been living with HIV for 3 years. She has been on ART but admits to missing doses occasionally due to nausea. Today, her lab results are back.

Nursing Intervention Strategy: 1. Assessment: Immediately review the CD4 count and viral load. Assess Maria for any current signs of infection (fever, cough, shortness of breath, skin lesions, oral thrush). Perform a thorough medication history to assess adherence barriers. 2. Action: Report the critically low CD4 count (180 cells/mm³) to the healthcare provider (physician or midwife) immediately. Collaborate on the plan, which will likely include: re-evaluating her ART regimen, initiating or adjusting PCP prophylaxis (e.g., Trimethoprim-Sulfamethoxazole), and possibly scheduling more frequent visits. 3. Education & Support: Use a non-judgmental approach to counsel on the vital importance of >95% ART adherence for her health and to protect her baby. Discuss strategies for managing side effects (taking meds with food, antiemetics). Educate on signs of OIs to report immediately. 4. Evaluation: Monitor for symptom resolution or development. Follow-up labs (CD4, viral load) will be key indicators of intervention effectiveness.

Patient Safety and Precautions: * Key Point! Drug Interactions: Many ART drugs have interactions. A classic example: Efavirenz (an NNRTI) is contraindicated in the first trimester due to teratogenic risk. Always verify the safety of the regimen in pregnancy. * Infection Prevention: The patient is at high risk for infections. Advise avoiding crowded places, sick contacts, and ensure vaccinations are up-to-date (inactivated vaccines only; no live vaccines like MMR or Varicella).

Nursing Procedure & Medication Flow Medication Administration (ART): * Adherence is everything. Use pill organizers, set phone alarms, link dosing to a daily routine. * Teach about side effects: Nausea, rash, fatigue, liver toxicity. Instruct to report severe rash, yellowing of skin/eyes, or dark urine immediately. * Administration: Some drugs must be taken on an empty stomach, others with food. Know the specifics of the prescribed regimen (e.g., Atazanavir requires food).

A Word from Your Senior Nurse "Managing HIV in pregnancy is one of the great success stories of modern medicine. We've gone from a near-certainty of transmission to a less than 1% chance with proper treatment. Your role is pivotal. You are the one who builds the trusting relationship that promotes medication adherence. You are the one who catches that critically low CD4 count and sounds the alarm. Never underestimate the power of thorough assessment and patient education. You're not just following orders; you're actively protecting two lives."

마이메르시로 국가고시 완벽 대비

기출문제와 상세 해설을 무료로. 내 약점을 분석하고 진도를 관리하며 더 똑똑하게 공부하세요.

무료로 시작하기

App Store Google Play

학습 참고용입니다. 실제 임상은 최신 지침과 소속 기관 프로토콜을 따르세요.

성장을 멈추지 마세요

A pregnant client at 28 weeks gestation with HIV infection comes to the prenatal clinic for routine follow-up. The nurse is reviewing the client's laboratory results. Which laboratory finding would be the most critical for the nurse to assess and report immediately to the healthcare provider?

심화 해설

임상 시나리오

마이메르시로 국가고시 완벽 대비