Q: Cuff pressure in endotracheal tube (ETT) on transporting a ventilated patient towards a higher altitude will? (select one)
When a patient is transported to higher altitude for any reason, attention should be paid to cuff pressure on ETT. Cuff pressure increases when a patient is moved to a higher altitude simply because air tends to expand at higher altitude. And, this rise can be clinically significant to cause tracheal ischemia. At least one study showed that when patients were moved from sea level to a height of 3000 feet, the mean rise in cuff pressure was 23 cm H2O.
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