A 14-year-old adolescent with cystic fibrosis is admitted to the pediatric unit with increased respiratory distress. Which assessment finding would be most concerning and require immediate nursing intervention?
1Oxygen saturation of 88% on room air with increased work of breathing✓ 정답
2Productive cough with thick, greenish sputum
3Weight loss of 2 pounds over the past month
4Complaints of abdominal cramping after meals
해설
Oxygen saturation of 88% indicates severe hypoxemia requiring immediate intervention like oxygen therapy. Other findings are chronic or less urgent in cystic fibrosis.
Core Nursing Explanation
This question tests the critical nursing skill of prioritizing assessments and interventions for a pediatric patient with Cystic Fibrosis (CF) experiencing an acute exacerbation. The core theme is recognizing signs of Key Point!acute respiratory failure versus chronic, expected manifestations of the disease.
Key Concept Analysis
Cystic Fibrosis is a genetic disorder causing defective chloride channels, leading to the production of thick, sticky mucus. This primarily affects the lungs and pancreas. In the lungs, the thick mucus obstructs airways, leading to chronic infection, inflammation, and progressive lung damage. An acute exacerbation is marked by increased symptoms like cough, sputum production, and respiratory distress.
Answer Rationale
Option ① is correct because it presents two critical, interrelated findings indicating imminent respiratory failure:
1. Oxygen saturation (SpO2) of 88% on room air: This signifies severe hypoxemia. The normal target for a patient with chronic lung disease like CF is typically >90-92%. A value of 88% is dangerously low and indicates the lungs are failing to oxygenate the blood adequately.
2. Increased work of breathing: This is a clinical observation (e.g., nasal flaring, retractions, use of accessory muscles, tachypnea) that shows the patient is struggling to maintain ventilation. Combined with hypoxemia, this is a medical emergency requiring immediate intervention such as supplemental oxygen, bronchodilators, chest physiotherapy, and possibly non-invasive ventilation.
Distractor AnalysisWatch out for confusion! While all options are relevant to CF, only one indicates an acute, life-threatening change.
- Option ②: Productive cough with thick, greenish sputum is a chronic and expected finding in CF due to chronic Pseudomonas aeruginosa infection. While it needs management, it does not by itself signal an immediate crisis.
- Option ③: Weight loss is a common, chronic complication of CF due to pancreatic insufficiency and malabsorption. It requires nutritional intervention but is not the priority in an acute respiratory admission.
- Option ④: Abdominal cramping is often related to pancreatic insufficiency, distal intestinal obstruction syndrome (DIOS), or malabsorption. Like weight loss, it is a gastrointestinal issue and is not the primary threat during a respiratory distress episode.
Related Concepts
The nursing process dictates that Airway, Breathing, and Circulation (ABC) are always the top priorities. In this scenario, Breathing (hypoxemia and increased work of breathing) takes precedence over all other chronic health problems. Understanding the pathophysiology of CF helps differentiate between its lifelong manifestations and acute, dangerous complications.
Concept Summary
Concept
Description
Nursing Implication
Cystic Fibrosis (CF)
Genetic disorder causing thick mucus in lungs/pancreas.
Focus on airway clearance, infection control, nutrition.
Acute Respiratory Exacerbation
Worsening of chronic respiratory symptoms.
Priority: Assess for hypoxemia and respiratory distress.
Hypoxemia (SpO2 < 90%)
Low oxygen level in the blood.
Requires immediate intervention (oxygen therapy).
Increased Work of Breathing
Sign of respiratory muscle fatigue and distress.
Clinical sign of impending respiratory failure.
Chronic CF Manifestations
Thick sputum, weight loss, abdominal issues.
Require ongoing management but are not immediate emergencies.
Side-by-Side Comparison!
Assessment Finding
Indicates...
Priority Level
Typical Nursing Action
O2 Sat 88% + Distress
Acute Respiratory Failure
HIGHEST (Immediate)
Apply O2, call rapid response, prepare for intubation.
Thick Green Sputum
Chronic Infection (e.g., Pseudomonas)
Moderate (Scheduled)
Collect sputum culture, administer prescribed antibiotics, perform chest PT.
Weight Loss
Chronic Malnutrition
Moderate (Plan of Care)
Consult dietitian, administer pancreatic enzymes, provide high-calorie meals.
Anatomy, Physiology & Pharmacology Points
- Pathophysiology: The CFTR gene defect leads to defective chloride transport, causing dehydrated, viscous mucus that clogs airways and pancreatic ducts.
- Lung Impact: Mucus plugging → air trapping, atelectasis → perfect environment for chronic bacterial colonization (especially Staphylococcus aureus and Pseudomonas aeruginosa) → inflammation and bronchiectasis.
- Key Drug Classes:Mucolytics (e.g., Dornase alfa), Antibiotics (often inhaled like tobramycin), Bronchodilators (e.g., Albuterol), and Pancreatic enzyme supplements.
Memory Tips
- ABCs First: Always ask: Is the Airway open? Is the patient Breathing effectively? Is there Circulation? In CF exacerbation, "B" is the immediate concern.
- Number Rule: Remember that an SpO2 of 88% is a "red number" signaling severe hypoxemia. Normal is 95-100%, and for chronic lung disease, target is usually >90-92%.
- Acute vs. Chronic: For CF, think "Lungs vs. Gut." Acute threats are usually LUNG related (low O2, distress). Chronic issues are often GUT related (weight, cramps, stools).
High-Frequency NCLEX Topics
The NCLEX loves to test priority-setting and "what finding is most concerning?" This question combines a chronic disease (CF) with an acute change. You must differentiate between a stable chronic condition and an acute life-threatening complication. Vital sign abnormalities (especially low SpO2) paired with clinical signs of distress are almost always the highest priority.
Watch Out for Question Variations!
- Shift from Assessment to Intervention: "The nurse notes an O2 saturation of 88% with increased work of breathing. What is the nurse's first action?" (Answer: Apply supplemental oxygen per protocol/order).
- Shift to Medication: "Which medication would be most appropriate to administer first for this patient?" (Answer: A bronchodilator like albuterol to open airways, often given before chest physiotherapy).
- Shift to Education: "The parent asks why their child needs chest physiotherapy even when feeling okay. How should the nurse respond?" (Answer: To prevent mucus buildup and infection, it's a daily maintenance therapy).
Nursing Clinical Practice GuideClinical Scenario: You are the nurse on a pediatric unit. Jason, a 14-year-old with CF, was admitted yesterday for increased cough and fatigue. During your morning assessment, you find him sitting upright, leaning forward on his bedside table. His respiratory rate is 32/min, you see subcostal retractions, and his SpO2 on room air is 88%. He speaks in short phrases.
Nursing Intervention Strategy
1. Immediate Assessment & Action (First 2-5 minutes):
- Key Point! Do not leave the patient. Use your call bell to alert the charge nurse or colleagues.
- Apply supplemental oxygen via nasal cannula or mask to achieve a target SpO2 >92%. Monitor closely as some CF patients with chronic CO2 retention rely on "hypoxic drive," but in an acute distress scenario, correcting severe hypoxemia is paramount.
- Perform a focused respiratory assessment: breath sounds (likely diminished with crackles/wheezes), work of breathing, ability to speak.
- Obtain vital signs and notify the physician or advanced practice provider immediately of the acute change.
2. Collaborative Care (Next 30 minutes):
- Prepare for and administer ordered nebulized treatments (e.g., bronchodilator, hypertonic saline, or mucolytic).
- Assist with or perform airway clearance techniques (e.g., postural drainage, percussion, vibrating vest) after bronchodilator administration, as tolerated.
- Ensure IV access is patent for possible antibiotic administration.
- Obtain ordered diagnostics (e.g., chest X-ray, sputum culture).
3. Ongoing Management & Education:
- Continue frequent respiratory assessments (q1-2h initially).
- Provide high-calorie, high-protein snacks and meals. Administer pancreatic enzymes with all meals and snacks.
- Educate the adolescent and family on the signs of respiratory exacerbation (increased cough, change in sputum, fever, decreased activity tolerance) for early intervention at home.
Patient Safety and Precautions
1Infection Control:CF patients are often colonized with resistant bacteria. Practice strict Contact Precautions as per hospital policy (gown/gloves) and ensure they are not roomed with another CF patient (cross-infection risk).
2Oxygen Safety:While oxygen is treatment, ensure all electrical equipment (nebulizers, vests) is used safely away from the oxygen source.
3Medication:Administer pancreatic enzymes with every meal and fat-containing snack. Do not crush or chew enteric-coated enzymes.
Nursing Procedure & Medication FlowAirway Clearance Therapy Sequence:
1. Administer bronchodilator (e.g., Albuterol) via nebulizer.
2. Wait 10-15 minutes.
3. Administer mucolytic (e.g., Dornase alfa) or hypertonic saline via nebulizer.
4. Perform airway clearance technique (chest physiotherapy, vibrating vest) for 20-30 minutes.
5. Encourage deep coughing and expectoration of sputum into a tissue.
Pancreatic Enzyme Administration: Dose is based on grams of fat ingested. Give enzymes at the beginning of the meal or snack. For large meals, half at the start and half midway.
A Word from Your Senior Nurse
"Caring for a teenager with a chronic illness like CF requires a special blend of acute clinical skills and compassionate, developmentally-appropriate support. In a crisis, your eyes and your monitor are your best tools—see the distress, trust the low number. But remember, after the emergency passes, your role is to empower this young person. Teach them about their medications, involve them in their treatment schedule, and listen to their frustrations. You're not just managing a disease; you're helping a person navigate a challenging life. On the NCLEX and in practice, that dual focus—acute acuity plus chronic care management—is what makes an excellent nurse."
Cystic Fibrosis — A genetic disorder affecting the lungs and digestive system, characterized by thick, sticky mucus production.
Hypoxemia — An abnormally low level of oxygen in the blood, typically indicated by an SpO2 below 90%.
Increased Work of Breathing — Clinical signs that a patient is using extra effort to breathe (e.g., nasal flaring, retractions, accessory muscle use).
Pseudomonas aeruginosa — A common bacterium that causes chronic lung infections in patients with cystic fibrosis.
Pancreatic Insufficiency — A condition where the pancreas does not produce enough digestive enzymes, leading to malabsorption and weight loss; common in CF.