Endotracheal Tube Depth and Tidal Volume Calculator
Calculates recommended endotracheal tube depth and initial tidal volume based on patient height. Prevents endobronchial intubation and ventilator-induced lung injury (VILI). Based on ARDSNet and standard anatomical guidelines.
Score interpretation
Results calculated from height and sex entered
→ Confirm ETT position at recommended depth (at lips); auscultate bilaterally to confirm equal air entry; check end-tidal CO2 waveform; CXR to confirm carina position (ETT tip should be 3–5 cm above carina); set initial tidal volume at 6 mL/kg PBW; adjust based on plateau pressure and clinical response; use 6 mL/kg PBW in ARDS (ARDSNet protocol)
Interpretation bands for the ETT Depth. Apply clinical judgement and local guidance.
References
- The Acute Respiratory Distress Syndrome Network. Ventilation with lower tidal volumes as compared with traditional tidal volumes. N Engl J Med. 2000;342(18):1301–1308.
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Curated clinical cross-links plus same-class fallbacks.
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Decision support only — verify against a current formulary, NICE, or your local guideline before clinical use.