A nurse is assessing a client at 28 weeks gestation who is p… | 마이메르시 MyMerci
Maternal Newborn Health
문제

A nurse is assessing a client at 28 weeks gestation who is pregnant with twins. Which assessment finding would be most concerning and require immediate intervention?

해설
Blood pressure of 160/100 mmHg with 3+ proteinuria indicates severe preeclampsia, a life-threatening condition requiring immediate intervention in twin pregnancies. Other findings (fundal height, weight gain, mild edema) are common or expected in twin gestation and do not require urgent action.

심화 해설

Core Nursing Explanation Key Concept Analysis: This question assesses the nurse's ability to identify a critical, life-threatening complication in a high-risk pregnancy. The core theme is recognizing the signs of Preeclampsia with severe features, especially in the context of a twin gestation, which is a major risk factor. Preeclampsia is a hypertensive disorder of pregnancy characterized by new-onset hypertension and proteinuria after 20 weeks gestation. The pathophysiology involves widespread vasospasm and endothelial damage, leading to poor perfusion of vital organs (placenta, kidneys, liver, brain) and posing severe risks to both mother and fetus.

Answer Rationale: Key Point! A blood pressure of 160/100 mmHg with 3+ proteinuria meets the diagnostic criteria for severe preeclampsia. In a twin pregnancy, the risk of developing preeclampsia is significantly higher, and its progression can be rapid and severe. This finding requires immediate intervention (e.g., magnesium sulfate for seizure prophylaxis, antihypertensive therapy, and likely delivery planning) to prevent life-threatening complications like eclampsia (seizures), HELLP syndrome (Hemolysis, Elevated Liver enzymes, Low Platelets), placental abruption, and fetal compromise.

Distractor Analysis:
  • Option 1 (Fundal height 32 cm at 28 weeks): In a twin pregnancy, the fundal height is typically larger than the gestational age. A measurement of 32 cm at 28 weeks (4 cm above) is within the expected range for twins and is not an immediate concern.
  • Option 2 (Weight gain of 35 pounds): While excessive weight gain is monitored, the recommended total weight gain for a twin pregnancy is higher (37-54 lbs for a normal BMI). A gain of 35 lbs by 28 weeks is significant but not the most concerning finding compared to severe hypertension. It requires nutritional counseling, not emergency intervention.
  • Option 3 (Mild ankle edema at day's end): Watch out for confusion! Dependent edema is a common, expected finding in pregnancy due to increased venous pressure and fluid retention. It becomes concerning only if it is sudden, severe, or involves the face and hands, which may signal preeclampsia. Mild ankle edema alone is not an urgent issue.
Related Concepts: The priority in this scenario is based on the ABCs (Airway, Breathing, Circulation) and Maslow's Hierarchy of Needs. Severe hypertension threatens the mother's physiological integrity (circulation, neurological status) and is a safety risk, taking precedence over other findings that relate to normal variations or health promotion.

Concept Summary
ConceptKey Points
PreeclampsiaHypertension + Proteinuria after 20 wks. Risk factors: first pregnancy, multiples, chronic HTN, obesity.
Severe FeaturesBP ≥160/110, severe proteinuria (≥3+ on dipstick), symptoms (headache, visual changes, epigastric pain).
Twin Pregnancy RisksHigher risk for preeclampsia, preterm labor, gestational diabetes, anemia. Fundal height often > dates.
Normal vs. Concerning EdemaNormal: Mild ankle edema. Concerning: Sudden onset, facial/hand edema (pitting).

Side-by-Side Comparison!
Assessment FindingIn Singleton PregnancyIn Twin Pregnancy (Context for this question)
Fundal Height at 28 wks~28 cm (matches dates)Often 4-8 cm > dates (e.g., 32-36 cm) - Expected
Total Weight Gain25-35 lbs (normal BMI)37-54 lbs (normal BMI) - 35 lbs by 28 wks is notable but not critical
Blood Pressure 160/100Always a severe concernAn EXTREME concern due to higher baseline risk and potential for rapid deterioration

Anatomy, Physiology & Pharmacology Points The pathophysiology of preeclampsia involves defective placental implantation leading to placental ischemia. This triggers the release of factors causing systemic endothelial dysfunction and vasospasm. Key drug: Magnesium sulfate is the anticonvulsant of choice for preventing eclamptic seizures; it works by blocking calcium channels in the CNS and at the neuromuscular junction. Antihypertensives like labetalol or hydralazine are used for severe hypertension.

Memory Tips Mnemonic for Preeclampsia Symptoms (HEADACHE): Headache, Epigastric pain, Alterations in vision, Decreased urine output, Ankle edema (sudden/severe), Clonus (hyperreflexia), Hypertension, Edema (facial/hand), Proteinuria.
Think: "160/110 or 3+ protein = SEVERE." The numbers are easy thresholds to remember.

High-Frequency NCLEX Topics Preeclampsia is a High Yield topic. The NCLEX loves to test: 1) Identifying severe features, 2) Knowing that magnesium sulfate is for seizure prophylaxis (not for lowering BP), 3) Prioritizing care (e.g., safety, seizure precautions, monitoring for complications like pulmonary edema), and 4) Patient education (reporting warning signs).

Watch Out for Question Variations! The same concept can be tested by:
  • Prioritizing Interventions: "The nurse receives these findings for a client with preeclampsia. Which action should the nurse take first?" (Answer: Initiate seizure precautions/Prepare MgSO4).
  • Medication Knowledge: "A client with severe preeclampsia is receiving magnesium sulfate. Which finding indicates toxicity?" (Answer: Loss of deep tendon reflexes (DTRs), respiratory depression).
  • Postpartum Focus: "A postpartum client had preeclampsia. Which finding requires immediate reporting?" (Answer: Severe headache or visual changes—preeclampsia can occur postpartum).

임상 시나리오

Nursing Clinical Practice Guide Clinical Scenario: You are the nurse on the labor and delivery unit. Ms. Johnson, 28 weeks pregnant with twins, presents for a routine prenatal visit. During your assessment, she mentions a slight headache. You obtain her vital signs and a urine sample.

Nursing Intervention Strategy:
  1. Immediate Assessment & Safety: Upon finding BP 160/100 and 3+ proteinuria, your first action is to ensure patient safety. Place the client in a left lateral recumbent position to improve placental perfusion. Initiate seizure precautions: dim lights, quiet environment, raise side rails (padded if available). Do not leave the client unattended.
  2. Notify & Monitor: Immediately notify the provider (physician/midwife). Obtain orders for STAT labs (CBC, liver enzymes, creatinine, coagulation studies) and continuous fetal monitoring. Start continuous maternal blood pressure and pulse oximetry monitoring.
  3. Medication Administration: Anticipate orders for:
    • Magnesium sulfate loading dose (often 4-6 g IV over 20-30 min) followed by a maintenance infusion (1-2 g/hr). Monitor closely for toxicity: Check deep tendon reflexes (DTRs) hourly, respiratory rate >12/min, urine output >30 mL/hr (Mg is renally excreted). Keep calcium gluconate at the bedside as the antidote.
    • Antihypertensives (e.g., labetalol IV push or hydralazine IV) to lower severe BP.
  4. Ongoing Evaluation & Preparation: Assess for worsening symptoms (severe headache, visual changes, epigastric pain). Prepare for the likelihood of delivery, as the definitive treatment for preeclampsia is delivery of the placenta.
Patient Safety and Precautions:
  • Contraindications/Cautions: Magnesium sulfate is contraindicated in myasthenia gravis. Monitor for signs of pulmonary edema (crackles, shortness of breath), a potential complication of both preeclampsia and fluid management.
  • Key Monitoring Points: Strict intake and output (I&O), daily weights, neurologic checks, fetal heart rate patterns for signs of distress (late decelerations indicating uteroplacental insufficiency).
Nursing Procedure & Medication Flow Managing a Client on Magnesium Sulfate: 1. Pre-infusion: Establish two IV lines (one for MgSO4, one for emergency access). Obtain baseline DTRs, respiratory rate, and level of consciousness. 2. Loading Dose: Administer 4-6 g in 100 mL NS IVPB over 20-30 minutes. Monitor for flushing, feeling of warmth, nausea. 3. Maintenance Infusion: Use an IV pump to administer 1-2 g/hr in a compatible solution. Label the line clearly. 4. Hourly Assessments: - DTRs: Absent DTRs = first sign of toxicity. Hold infusion and notify provider. - Respiratory Rate: < 12/min = toxicity. Hold infusion, notify, prepare to administer oxygen and calcium gluconate. - Urine Output: Must be > 30 mL/hr. If output falls, Mg levels will rise. 5. Patient Education: Explain the purpose of the medication (to prevent seizures), and the need for frequent checks.

A Word from Your Senior Nurse "Remember, in obstetrics, we are caring for two (or more!) patients at once. A finding like severe hypertension in pregnancy isn't just a number—it's a red flag waving furiously, telling you that both the mother's brain, kidneys, and liver, and the baby's lifeline (the placenta) are under attack. Your vigilant assessment and swift action are what stand between a routine visit and a catastrophic event. When you see those numbers, your internal alarm bells should ring loudest for the option that threatens physiological stability. That's the heart of nursing prioritization."

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