Approach to Child with Respiratory Distress

Algorithm

%%{init: { "theme": "dark", "themeVariables": { "lineWidth": "3px", "lineColor": "#000000" } }}%%
graph TD

classDef start fill:#1b5e20,color:#ffffff,stroke:#66bb6a;
classDef step fill:#0d47a1,color:#ffffff,stroke:#42a5f5;
classDef decision fill:#4a148c,color:#ffffff,stroke:#ab47bc;
classDef alert fill:#b71c1c,color:#ffffff,stroke:#ef5350;

A(Pediatric Resp Distress
Initial Triage):::start
B[Assess PAT
Appearance Breathing Color]:::step
C{Respiratory Failure
Cyanosis SpO2 under 94}:::decision

A --> B
B --> C

D1[Immediate Resuscitation
Airway Breathing Circulation]:::step
D2[Anatomical Localization
Identify Clinical Etiology]:::step

C -->|Yes| D1
C -->|No| D2

E1{Intubation Indicated
Neuro or CV Decline}:::decision
D1 --> E1

F1[Endotracheal Intubation
Secure Airway Rapidly]:::alert
F2[Non-Invasive Support
CPAP or HFNC Oxygen]:::step

E1 -->|Yes| F1
E1 -->|No| F2

G1[Upper Airway
Stridor and Retractions]:::step
G2[Lower Airway
Wheeze and Prolonged Expiration]:::step
G3[Lung Parenchyma
Grunting and Crepitations]:::step

D2 --> G1
D2 --> G2
D2 --> G3

H1[Croup
Steroids and Neb Adrenaline]:::step
H2[Acute Asthma
Salbutamol and Steroids]:::step
H3[Bronchiolitis
Supportive and Hydration]:::step
H4[Severe Pneumonia
Empiric IV Antibiotics]:::step

G1 --> H1
G2 --> H2
G2 --> H3
G3 --> H4

Initial assessment and triage

Pediatric assessment triangle

• Triage begins with rapid visual and auditory evaluation.
• Assess child appearance, breathing, and color.

Appearance evaluation

• Utilize Ticls mnemonic: Tone, Interactiveness, Consolability, Look/gaze, Speech.
• Provides rapid clues regarding brain perfusion and oxygenation.

Breathing assessment

• Identify abnormal respiratory rates including tachypnea or bradypnea.
• Detect increased work of breathing via nasal flaring or retractions.
• Note abnormal airway sounds including wheeze, grunt, or stridor.

Color evaluation

• Detect pallor, mottling, or cyanosis.
• Color abnormalities indicate severe hypoxemia or impending cardiorespiratory failure.

Respiratory failure categorization

• Identify patients requiring immediate resuscitation.
• Criteria include tachypnea, increased breathing work, cyanosis, abnormal sensorium, and room air oxygen saturation below 94 percent.

Pathophysiology and anatomical localization

Anatomical localization guide

Pathophysiological mechanisms

• Upper airway obstruction: Partial obstruction above thoracic inlet causes turbulent airflow and harsh, high-pitched stridor.
• Lower airway obstruction: Small airway obstruction increases resistance, causing air trapping and dynamic hyperinflation.
• Active, prolonged expiration results in audible wheezing.
• Parenchymal disease: Alveolar consolidation or pulmonary edema creates ventilation-perfusion mismatch.
• Results in intrapulmonary shunting and severe hypoxemia.

Primary assessment and stabilization algorithm

Airway management

• Ensure airway remains open and maintainable.
• Utilize simple positioning techniques including head-tilt-chin lift or sniffing position.
• Perform oral suctioning to clear excessive secretions.
• Prepare advanced interventions if airway remains unmaintainable.

Breathing interventions

• Administer heated, humidified 100 percent supplemental oxygen.
• Utilize non-rebreathing face mask targeting oxygen saturation of 94 percent or higher.
• Provide appropriate-sized nasal prongs with 1-2 liters per minute flow rate for infants.

Non-invasive respiratory support

• Initiate continuous positive airway pressure or high flow nasal cannula for severe retractions.
• Indicated when patient fails to maintain oxygen saturation above 94 percent.
• Continuous positive airway pressure provides distending pressure to recruit atelectatic alveoli.
• Reduces overall work of breathing and potentially averts invasive mechanical ventilation.

Circulation assessment

• Monitor heart rate, capillary refill time, and systemic blood pressure.
• Obtain immediate intravenous or intraosseous vascular access.

Shock management

• Suspect concurrent shock with hypotension, prolonged capillary refill, or marked tachycardia.
• Administer rapid isotonic crystalloid fluid boluses of 10-20 milliliters per kilogram.

Disability evaluation

• Continuously monitor baseline level of consciousness.
• Identify worsening hypoxia or hypercarbia presenting as excessive irritability.
• Note progression to lethargy, obtundation, or coma.

Indications for endotracheal intubation

Clinical thresholds for invasive ventilation

Disease-specific emergency management

Acute asthma exacerbation

• Administer inhaled salbutamol and repeat inhalation therapy every 20 minutes for the first hour.
• Administer systemic corticosteroids using oral prednisolone or intravenous hydrocortisone.
• Escalate severe exacerbations to continuous salbutamol nebulization.
• Administer intravenous magnesium sulphate at 50 milligrams per kilogram.
• Provide intravenous terbutaline for refractory cases.

Croup protocol

• Provide humidified oxygen in a calm, non-threatening manner.
• Administer single dose oral, intramuscular, or intravenous dexamethasone at 0.6 milligrams per kilogram.
• Deliver nebulized adrenaline utilizing 5 milliliters of 1:1000 undiluted solution for severe respiratory distress.

Acute bronchiolitis care

• Management remains primarily supportive focusing on oxygenation and hydration.
• Consider therapeutic trial of nebulized 3 percent hypertonic saline or adrenaline.
• Routine administration of antibiotics and systemic steroids remains strictly not recommended.

Severe pneumonia treatment

• Initiate empiric intravenous antibiotics immediately upon recognition.
• Administer cefotaxime combined with amikacin for infants aged 1-2 months.
• Administer ampicillin combined with gentamicin for children aged 2-59 months.
• Adjust antibiotic regimen if atypical pathogens or staphylococcal pneumonia suspected clinically.