Peds Exam 3

Chapter Overview and Importance

This chapter covers significant respiratory disorders and consists of crucial concepts about pediatric respiratory health compared to adult patients. It will have a substantial weight in upcoming evaluations, particularly sensitive topics in pediatrics, including respiratory disorders, cardiovascular disorders, hematologic disorders, and neurosensory issues.

Exam Relevance

  • This material is for Exam 3, which assesses knowledge on:

    • Respiratory Disorders

    • Cardiovascular Disorders

    • Hematologic Disorders

    • Neurosensory Disorders

  • Notable challenges: Many respiratory disorders have similar presentations, leading to student anxiety. The instructor plans to provide strategies to differentiate among them.

General Insights on Respiratory Disorders

  • Despite the variety of respiratory disorders, management approaches tend to be quite similar.

  • The discussion will focus specifically on pediatric respiratory differences versus adult considerations.

Pediatric Respiratory Differences

Distinction between Adult and Pediatric Respiratory Systems

  • Upper vs Lower Respiratory Tract:

    • Upper respiratory tract includes the nose, pharynx, and larynx. Conditions affecting these areas may lead to airway compromise and significant clinical issues but often do not present with gas exchange problems.

    • Lower respiratory tract involves the trachea, bronchi, and lungs. Issues here can lead to gas exchange issues, reflecting a more severe clinical picture.

Key Differences Specific to Pediatric Patients

  1. Lack of Surfactant in Premature Infants

    • Surfactant is crucial for lung function and typically develops at 28 weeks gestation. Premature infants (born before 28 weeks) face a higher incidence of pulmonary complications due to this deficiency.

    • Insight: "If they're born early, they're not done cooking."

  2. Airway Size and Shape

    • Pediatric airways are smaller and funnel-shaped, increasing the risk of obstruction. This anatomical feature necessitates specific attention to airway management and decision-making around food size.

  3. Underdeveloped Cartilage and Muscles

    • Infants have mainly cartilage structures in the ribcage. This structural difference means reduced chest expansion and more noticeable intercostal retractions during respiratory distress.

    • Children can appear less distressed despite severe respiratory involvement due to their compensatory mechanisms.

  4. Obligatory Nose Breathers

    • Infants primarily breathe through their noses until 4-6 months of age. Thus, nasal obstructions can lead to significant respiratory compromise.

    • Intervention: Clear nasal passages to maintain patent airways—bulb syringes or suction devices are useful.

  5. Apnea and Respiratory Rhythm

    • Brief periods of apnea (up to 10 seconds) can be normal in newborns.

    • Respiratory Rate: Infants can have rapid respiratory rates (up to 70-80 breaths per minute), which can affect oral feeding safety and fluid administration strategies, emphasizing the need for clinical judgment in managing hydration.

  6. Eustachian Tube Orientation

    • Eustachian tubes are positioned horizontally in infants and young children, increasing susceptibility to ear infections and potential linkages with upper respiratory infections.

  7. Enlarged Tonsillar Tissue

    • Increased size of tonsils in children can result in more frequent throat-related infections. Tonsils typically begin to atrophy around age 12.

  8. Flexible Larynx

    • The pediatric larynx can spasm more easily, complicating interventions like intubation. Caution is advised in managing airway issues.

Progression of Infections by Age

  1. Infants (<3 months): Maternal antibodies provide temporary protection. Fever in this age group signals urgency and may trigger a sepsis protocol.

  2. Children (3-6 months): Increased exposure to pathogens as mobility increases and daycare attendance begins.

  3. Toddlers and Preschoolers: Highest rates of viral infections; particularly sensitive to the transmission of pathogens through behaviors typical in this age group.

  4. Children >5 years: Increased incidence of strep throat and pneumonia. Pneumonia generally develops following upper respiratory infections.

General Management of Respiratory Disorders

  • Goals of Management: To ease the respiratory effort, manage fever, provide comfort, facilitate nutrition and hydration, and prevent infections.

Core Interventions

  • Positioning: Upright position can help improve respiratory efficacy.

  • Oxygen Therapy: Essential in cases of hypoxia, though approaches should be gentle and accommodating to children's apprehensive nature

  • Fever Management: Essential due to its role in increasing metabolic demands. Anaesthetics such as acetaminophen and specialized dosing considerations for pediatric populations must be considered.

  • Rest and Comfort: Establish routines that comfort unwell children (e.g., familiar items from home).

  • Infection Control: Be aware of highly contagious conditions like RSV—ensure appropriate room assignments and patient isolation as necessary.
    Including practicing good hygiene and minimizing shared items.

  • Nutritional Support: Nutrition and hydration plans tailored to the child's needs, emphasizing oral hydration when practical and preventing dehydration.

Specific Respiratory Conditions

Allergic Rhinitis (Seasonal Allergies)

  • Onset: Usually seen in spring or fall. Triggered by dust mites, mold, and pollens.

  • Manifestations:

    • Watery rhinorrhea

    • Nasal/mouth/eye itching

    • Paroxysmal sneezing

    • Allergic shiners (dark circles under the eyes due to rubbing)

  • Management:

    • Identify and eliminate allergens (e.g., pets, pollen exposure).

    • Medications:

    • Antihistamines (e.g., loratadine, diphenhydramine) - side effects include possible drowsiness; can act opposite in some children.

    • Intranasal corticosteroids - effective but may be distressing for younger patients.

Sinusitis

  • Definition: Inflammation of the sinuses; often results from upper respiratory infections and impacts children more significantly due to smaller sinus cavities.

  • Symptoms: Fever, nasal drainage, cough worsening in prone positions, halitosis, headaches.

  • Treatment: Most cases self-limiting with symptomatic relief. Antibiotics typically not warranted unless severe symptoms of bacterial infection are present. Promote hydration and use of analgesics as symptom relief strategies.

Otitis Media

  • Acute Otitis Media: Fluid behind the eardrum with systemic signs of infection, such as fever.

  • Otitis Media with Effusion: Fluid persists after infection resolves leading to potential hearing issues.

  • Management:

    • Watchful waiting for healthy children over 6 months if symptoms mild.

    • Immediate antibiotics for younger children or those with fever or severe symptoms.

    • Emphasis on hydration, pain control (acetaminophen, ibuprofen), and follow-up for persistent cases.

Conclusion of the Chapter

  • These respiratory issues illustrate key concepts in managing pediatric health. Many conditions show similarities; therefore, distinguishing characteristics and treatment plans are crucial.

  • Understanding the developmental differences and health presentations in children compared with adults is vital for effective intervention.

  • Additional practice and real-world connections will be discussed in the next session, along with quizzes to assess understanding.