Details how to assess a child's respiratory status and the signs of the stages of respiratory failure.
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A
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Airway
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Is the airway patent/maintainable/compromised? Is there difficulty breathing/speaking? Are there associated breath sounds?
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B
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Breathing
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Look, Listen, Feel: Look - count RR; assess respiratory effort (i.e. use of accessory muscles, nasal flaring, abnormal rhythm, etc.); body position; colour. Listen - noisy breathing = upper airway secretions; stridor/wheeze = partial airway obstruction; grunting/gasping/apnoea. Feel - for deformities (i.e. surgical emphysema, crepitus).
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C
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Circulation
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Record HR, measure CRT, BP.
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D
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Disability
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Asses neurological status - alert/voice/pain/unresponsive; pupil size; glucose; Glasgow Coma Scale (older children).
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E
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Exposure
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Temperature (consider core/peripheries); rash; pain; skin integrity (blood loss, lesions, wounds, drains); consider fluid balance
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DEFG
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Don't Ever Forget Glucose
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Abnormal RR/effort
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Outside usual parameters for age group.
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Recession/accessory muscle use
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Subcostal/intercostal recession; tracheal tug.
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Abnormal breath sounds
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Stridor/wheeze
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Pulse Oximetry
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Value below 96%.
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Oxygen Therapy
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Need for inspired oxygen.
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Call for help if head bobbing/grunting/gasping/apnoea/central cyanosis noted
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Initial stages
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Physiological cause:
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Attempt to compensate O2 deficit & airway obstruction; beginning hypoxia
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Signs
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Restlessness; tachypnoea; tachycardia; diaphoresis
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Imminent respiratory failure
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Physiological cause:
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Attempt to use accessory muscles to assist intake O2; persistent hypoxia; use up more O2 than obtained
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Signs
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Tachypnoea, dyspnoea & tachycardia; nasal flaring ; retractions; grunting/head bobbing; wheezing; hypoxia (<92%); difficulty speaking; anxiety/irritability; mood changes; headache; confusion
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Ominous imminent respiratory arrest
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Physiological cause:
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Overwhelming O2 deficit; cerebral oxygenation affected (CNS changes ominous imminent respiratory arrest)
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Signs
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Severe hypoxia (pO2 <60%); dyspnoea/bradypnoea/silent chest/apnoea; bradycardia ; cyanosis; stupor/coma
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SaO2 saturations
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Arterial blood gas
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Bloods
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FBC - WCC slightly raised
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Blood gases
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pH 7.35-7.45; pO2 75-100mmHg (10-13.3kPa); pCO2 36-46mmHg (4.8-6.1kPa); Bicarbonate HCO3 22-30mmol/L-1; Base excess -2.3 - +2.3mmol/L
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Chest x-ray
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Spirometry
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PEF; FEV1
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Common abnormalities
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Respiratory acidosis: pCO2 and HCO3 increased, pH and pO2 decreased.
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