A 5-year-old child is brought to the emergency department by parents who report the child has been having severe coughing episodes for the past week. Which assessment finding would be most characteristic of pertussis in this child?

Paroxysmal coughing followed by an inspiratory whoop is the key sign of pertussis. Other options are not typical for pertussis in infants.

Core Nursing Explanation Key Concept Analysis: This question assesses the ability to identify the classic clinical presentation of Pertussis (Whooping Cough). Pertussis is a highly contagious respiratory infection caused by the bacterium Bordetella pertussis. The disease progresses through distinct stages: catarrhal, paroxysmal, and convalescent. The hallmark symptom occurs during the paroxysmal stage.

Answer Rationale: Key Point! The most characteristic finding is Paroxysmal coughing followed by an inspiratory whoop. The pathophysiology involves bacterial toxins that damage the cilia in the respiratory tract, leading to severe inflammation and accumulation of thick mucus. This triggers uncontrollable, violent coughing fits (paroxysms). After a series of coughs, the patient gasps for air, creating the high-pitched "whooping" sound as air is drawn through a narrowed, inflamed airway. This classic sign is most prominent in children; infants may not have the strength to produce the whoop and may present with apnea (cessation of breathing) instead.

Distractor Analysis:
Watch out for confusion! Option ①, "High fever with chills and rigors," is more characteristic of systemic bacterial infections like pneumonia or sepsis. Pertussis typically presents with a low-grade fever or no fever at all.
Option ③, "Productive cough with purulent sputum," describes a common symptom of bacterial bronchitis or pneumonia. While pertussis causes a cough, the sputum is typically thick and clear or white, not purulent (yellow/green), and the cough is non-productive during the paroxysms.
Option ④, "Gradual onset of mild respiratory symptoms," actually describes the Catarrhal stage of pertussis, which mimics a common cold (runny nose, mild cough, low-grade fever). However, the question asks for the *most characteristic* finding, which is the severe paroxysmal cough of the subsequent stage. This stage is not "mild."

Related Concepts: Understanding the stages of pertussis is crucial for early diagnosis and isolation. The catarrhal stage is highly contagious. Infants under 6 months are at highest risk for severe complications like apnea, pneumonia, seizures, and encephalopathy. The DTaP/Tdap vaccine is key for prevention.
Concept Summary

Concept	Key Points
Disease	Pertussis (Whooping Cough)
Causative Agent	Bordetella pertussis (bacterium)
Transmission	Airborne droplets (highly contagious)
Classic Symptom	Paroxysmal cough + Inspiratory whoop
High-Risk Group	Infants 임상 시나리오 Nursing Clinical Practice Guide Clinical Scenario: You are a nurse in the pediatric ED. A 5-year-old, unvaccinated child is brought in after a coughing fit so severe he turned blue (cyanosis) and vomited. Parents report 7-10 days of cold symptoms that progressed to these frightening coughing episodes, especially at night. Nursing Intervention Strategy: Immediate Assessment & Priority (ABCs): Assess airway, breathing (rate, effort, oxygen saturation SpO2 >95%), and circulation. Listen for the whoop. Key Point! In infants, watch for apnea spells instead of whooping. Infection Control: Immediately place the child on Droplet Precautions. Don a mask upon entry. The patient should wear a mask when outside their room. Supportive Care: Maintain hydration (offer small, frequent sips of fluids or IV fluids if needed). Provide humidified air/oxygen if indicated. Minimize stimuli that trigger coughing (e.g., sudden noises, cold air). Ensure suction equipment is available at bedside. Medication Administration: Administer prescribed macrolide antibiotic (e.g., azithromycin) to reduce infectivity. Anticipate orders for corticosteroids in severe cases to reduce inflammation. Family Education & Reporting: Educate family on the disease course, importance of completing antibiotics, and signs of respiratory distress. Pertussis is a reportable disease to the local health department. Patient Safety and Precautions: Isolation: Droplet precautions must continue for 5 days after starting effective antibiotic therapy. If not treated with antibiotics, isolate for 21 days after cough onset. High-Risk Contacts: Identify and recommend post-exposure prophylaxis (antibiotics) for all household contacts and other close contacts (e.g., daycare), regardless of vaccination status. Vaccine Contraindication: The only true contraindication to the pertussis vaccine is a history of a severe allergic reaction (e.g., anaphylaxis) to a prior dose or a vaccine component. Nursing Procedure & Medication Flow Procedure: Managing a Paroxysmal Coughing Episode 1. Stay calm and stay with the child. Position upright to ease breathing. 2. Do not offer food or drink during the episode (risk of aspiration). 3. After the episode, provide sips of water. Suction oral secretions if needed. 4. Allow the child to rest in a quiet, calm environment. 5. Document the episode: duration, presence of whoop/cyanosis/vomiting (post-tussive emesis). Medication: Azithromycin (Oral Suspension) Action: Macrolide antibiotic; inhibits bacterial protein synthesis. Dose: Weight-based (e.g., 10 mg/kg on day 1, then 5 mg/kg days 2-5). Nursing Points: Can be given with or without food. Complete the full course. Monitor for GI side effects (nausea, diarrhea). A Word from Your Senior Nurse "Pertussis sounds like an old-fashioned disease, but it's very much present today. That 'whoop' is unforgettable once you've heard it. Your role goes beyond giving meds and placing isolation signs. You are the educator, reassuring terrified parents that the scary coughing fits, while alarming, are part of the expected course. You are the vigilant monitor, especially for the tiniest patients who can't cough hard enough to make a sound but can stop breathing. And you are the public health advocate, ensuring vaccination histories are checked and contacts are notified. This holistic view—connecting patho, assessment, intervention, and prevention—is what makes nursing so powerful." 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.