Drooling, Tripod, and a Nurse With an IV Catheter
A 3-year-old (14 kg) is brought in at 2 a.m. with 10 hours of fever to 39.4°C, drooling, a muffled voice, and soft stridor at rest. He sits tripod with his chin thrust forward, respiratory rate 34, SpO2 93% on room air, heart rate 156. He refuses to lie down and cries when the triage nurse approaches with a pulse oximeter probe. The emergency medicine resident wants to start an IV, draw blood cultures, and inspect the oropharynx with a tongue blade before calling anesthesia. The child's mother is calm at the bedside, and the child settles when she holds him upright against her shoulder.
1. What is your immediate priority for the next 60 seconds, and which planned actions must be stopped? Explain the physiology behind each prohibition.
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Priority: do not touch the airway, and keep the child calm.
- Let him stay upright in his mother's arms; blow-by oxygen held near (not on) the face; continuous pulse oximetry only if it can be applied without distress.
- Call anesthesia and ENT now for controlled intubation in the operating room with a difficult-airway plan and surgical backup.
Stop these actions:
- No IV attempt or blood draw. Crying and restraint increase negative intrathoracic pressure and can convert partial obstruction into complete obstruction.
- No tongue-blade examination. Manipulating an inflamed, edematous epiglottis can precipitate total obstruction and laryngospasm.
- No supine positioning. Lying flat removes the positional relief of upper airway obstruction.
- No separation from the parent. Anxiety worsens obstruction.
The clinical picture - fever, drooling, muffled voice, tripod posture, stridor at rest in an unimmunized or under-immunized child - is supraglottitis until proven otherwise. The judgment being tested is restraint: the most dangerous intervention here is a well-intentioned needle.
2. The child suddenly becomes cyanotic with SpO2 70% and goes limp in his mother's arms. Describe your airway plan, including tube sizing and the rescue option if you cannot intubate or ventilate.
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This is now a can't-intubate, can't-ventilate emergency - he has lost his airway.
- Bag-mask ventilation with 100% oxygen, two-person technique, oral airway, head in neutral/sniffing position; attempt to get any chest rise.
- Intubate immediately by the most experienced provider, with a tube 0.5–1 mm smaller than predicted: for a 3-year-old, predicted cuffed ETT ≈ age/4 + 3.5 = 4.0–4.5 mm cuffed (uncuffed ≈ 4.5–5.0). Use a stylet, suction ready, ENT at the bedside.
- If intubation fails and ventilation is inadequate: needle cricothyrotomy with a 14–16 g over-the-needle catheter through the cricothyroid membrane, connected to a 3-way stopcock and oxygen at 10–15 L/min for jet insufflation, roughly 1 second on and 3 seconds off, while definitive surgical airway is arranged. Needle cricothyrotomy is the preferred rescue in young children; surgical cricothyrotomy is an option in older children per local protocol.
The reasoning: in complete supraglottic obstruction, bag-mask ventilation cannot work because the obstruction is above the glottis, so the only oxygen path is trans-tracheal.
3. The child is intubated and stable in the ICU. What are your next management priorities and your plan for extubation?
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Immediate post-intubation care:
- Keep the child sedated and the tube secured; avoid accidental extubation, since re-intubation may be even harder as edema evolves.
- Obtain blood cultures and start IV antibiotics (e.g., ceftriaxone with or without vancomycin per local resistance patterns).
- Consider dexamethasone for airway edema per protocol; monitor for complications (pneumonia, abscess, mediastinitis).
- Humidified gases, sedation titration, nutrition, and VAP prevention.
Extubation planning:
- Expect the airway to remain swollen for 24–72 hours; do not rush.
- Perform a cuff-leak test and assess for stridor with the tube in place before extubation; have racemic nebulized epinephrine, steroids, and reintubation equipment immediately available.
- Extubate with the most experienced airway provider present, in a setting where immediate re-intubation is possible.
The judgment point: the danger in supraglottitis does not end with intubation - it peaks in the first day or two as edema progresses, so extubation is a planned, monitored event rather than a routine one.