A nurse is caring for a patient who underwent a total gastre… | 마이메르시 MyMerci
Adult Health
문제

A nurse is caring for a patient who underwent a total gastrectomy for gastric cancer. Which nursing intervention is most important to prevent dumping syndrome?

해설
Small, frequent meals and limiting fluids around meals slow gastric emptying, preventing dumping syndrome. Other options (drinking fluids with meals, large meals, high-carbohydrate foods) can exacerbate rapid emptying and symptoms.

심화 해설

Core Nursing Explanation This question assesses the essential nursing intervention for preventing Dumping syndrome, a common complication after gastric surgery like a total gastrectomy. Key Concept Analysis: Dumping syndrome occurs when food, especially hyperosmolar chyme, moves too rapidly (rapid gastric emptying) from the stomach (or gastric remnant) into the small intestine. This rapid influx causes a fluid shift from the intravascular space into the intestinal lumen (due to osmosis), leading to hypovolemia and intestinal distension (early dumping: 30-60 minutes postprandial). Later, the rapid absorption of carbohydrates can cause a reactive hypoglycemia (late dumping: 1-3 hours postprandial). The primary goal of management is to slow the transit of food into the intestine. Answer Rationale: Key Point! The most important intervention is to instruct the patient to eat small, frequent meals and limit fluid intake around meals. Small meals prevent overdistension and rapid emptying. Limiting fluids with meals (drinking 30-60 minutes before or after) prevents the food from becoming too liquid, which would speed its passage. This strategy directly targets the pathophysiology of dumping syndrome. Distractor Analysis: - Watch out for confusion! Option ① (drink fluids with meals) is a common misconception. While fluids aid digestion in a normal stomach, post-gastrectomy, they create a liquid bolus that empties far too quickly, exacerbating dumping. - Option ② (large, well-balanced meals three times daily) is incorrect because a large volume of food at once promotes rapid gastric emptying and is a direct trigger for dumping symptoms. - Option ④ (high-carbohydrate foods) is problematic. Simple carbohydrates (sugars) create a highly osmotic load in the intestine, driving the fluid shift that causes early dumping and can precipitate reactive hypoglycemia in late dumping. A diet higher in protein and fat and lower in simple carbs is recommended. Related Concepts: Post-gastrectomy care also focuses on preventing other complications like pernicious anemia (due to loss of intrinsic factor for B12 absorption) and iron deficiency anemia (due to altered iron absorption). Monitoring for weight loss and malnutrition is crucial.
Concept Summary
ConceptKey Points
Dumping Syndrome (Patho)Rapid gastric emptying → Hyperosmolar chyme in intestine → Fluid shift (Early) & Reactive hypoglycemia (Late).
Primary Nursing GoalSlow intestinal transit of food.
Dietary Management (Key Intervention)Small, frequent meals (6-8/day). Limit fluids during meals (drink 30-60 min before/after). High-protein, moderate-fat, low-simple-carb diet. Lie down after meals to slow emptying.
Symptoms to MonitorEarly: Dizziness, palpitations, sweating, cramping, diarrhea. Late: Weakness, sweating, confusion (hypoglycemia).

Side-by-Side Comparison!
Post-Gastrectomy ComplicationTiming/MechanismKey SymptomsPrimary Nursing Intervention
Dumping SyndromeEarly: 30-60 min post-meal (fluid shift). Late: 1-3 hrs post-meal (hypoglycemia).Early: Diaphoresis, weakness, palpitations, abdominal cramps, diarrhea. Late: Sweating, tremor, confusion.Small, frequent, dry meals. Limit fluids with meals. High-protein, low-carb diet.
Pernicious AnemiaMonths to years post-op (loss of intrinsic factor).Pallor, fatigue, glossitis, neurological changes (paresthesia, ataxia).Lifelong monthly Vitamin B12 (cyanocobalamin) IM injections.

Anatomy, Physiology & Pharmacology Points - Physiology: The pyloric sphincter normally regulates gastric emptying. Its removal or bypass during gastrectomy is the primary cause of dumping syndrome. - Pharmacology: Acarbose (an alpha-glucosidase inhibitor) may be used to delay carbohydrate absorption and mitigate late dumping. Octreotide (a somatostatin analog) can be used in severe cases to inhibit gut hormone secretion and slow motility. - Lab Values: Monitor for hypoglycemia (glucose < 70 mg/dL) in late dumping. Monitor for anemia (low Hgb/Hct) from B12 or iron deficiency.
Memory Tips - DUMPING = Don't Underestimate Meals, Prevent Influx Now, Gradually! (Diet: Small meals, Protein, Limit fluids, No simple carbs). - Think: "Slow the Flow" – small meals, dry meals, lie down. - Remember the opposites: What makes dumping worse? Large meals, liquids with meals, sugary foods. The correct answer is the opposite of these.
High-Frequency NCLEX Topics Dumping syndrome is a classic NCLEX topic in medical-surgical and nutritional nursing. The exam tests your ability to: 1. Identify the correct dietary teaching to prevent dumping syndrome. 2. Recognize the symptoms of early vs. late dumping. 3. Prioritize nursing actions when a patient experiences dumping (e.g., have them lie down, monitor for hypoglycemia).
Watch Out for Question Variations! - Instead of "most important to prevent," the question could ask: "The nurse identifies which finding as consistent with early dumping syndrome?" (Answer: Symptoms occurring within 1 hour of eating, like diaphoresis and abdominal cramps). - Or: "Which patient statement indicates understanding of teaching to manage dumping syndrome?" (Correct: "I will drink my soup 45 minutes after I finish my sandwich." Incorrect: "I'll have a big glass of orange juice with my breakfast.").

임상 시나리오

Nursing Clinical Practice Guide Clinical Scenario: Mr. Johnson, 58, is 2 weeks post-op from a total gastrectomy. He is being prepared for discharge. During a teaching session, he mentions, "Every time I eat, I feel dizzy, sweaty, and have to run to the bathroom with diarrhea about half an hour later." Nursing Intervention Strategy: 1. Assessment: Perform a focused assessment. Ask about meal size, composition (sugary foods?), fluid intake with meals, and timing of symptoms. Check vital signs, especially for tachycardia and hypotension post-meal. Assess for signs of dehydration. 2. Nursing Diagnosis: Risk for unstable blood glucose / Imbalanced nutrition: less than body requirements / Diarrhea related to rapid gastric emptying post-gastrectomy. 3. Planning & Implementation: - Dietary Teaching: Collaborate with a dietitian. Teach the "Slow the Flow" plan: 6-8 small meals/day. Eat slowly, chew thoroughly. Separate liquids from solids by 30-60 minutes. Increase protein (eggs, poultry, fish), include healthy fats, and severely limit simple sugars (candy, soda, sweet juices). Encourage lying down for 20-30 minutes after meals to use gravity to slow emptying. - Monitoring: Have the patient keep a food/symptom diary. Monitor weight trends. Teach signs of hypoglycemia (late dumping) and to have a fast-acting protein snack (like cheese) available. 4. Evaluation: Evaluate if symptom frequency and severity decrease. Assess patient's ability to adhere to the dietary plan and understanding of teaching. Patient Safety and Precautions: - Key Point! Warn patients that consuming high-sugar foods or drinks (like a milkshake) can trigger a severe dumping episode. This is a critical safety education point. - Monitor for and educate on signs of dehydration and electrolyte imbalance from chronic diarrhea. - Ensure follow-up for lifelong B12 supplementation to prevent irreversible neurological damage from pernicious anemia.
Nursing Procedure & Medication Flow - Vitamin B12 (Cyanocobalamin) IM Injection: This is a standard, lifelong procedure post-total gastrectomy. 1. Assessment: Check B12 levels and complete blood count (CBC) periodically. Assess for paresthesias or gait disturbances. 2. Procedure: Use the Z-track method for deep IM injection (often in the ventrogluteal site) to prevent leakage and tissue irritation. 3. Patient Education: Emphasize the necessity of lifelong monthly injections. Provide a schedule and resources for home health or outpatient clinic administration.
A Word from Your Senior Nurse "Managing dumping syndrome is a perfect example of how powerful patient education is in nursing. We're not just giving a list of 'don'ts'—we're empowering the patient with a practical strategy to take control of their symptoms and quality of life. In clinical practice, seeing a patient's relief when simple dietary changes make a dramatic difference is incredibly rewarding. For the NCLEX, remember the core patho: too fast, too much, too sugary. Your intervention is always to slow it down, break it up, and dry it out. Connect that logic to the answer choices, and you'll nail these questions every time!"

핵심 개념

마이메르시로 국가고시 완벽 대비

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

무료로 시작하기

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