Neonatal endotracheal flowmeter for tidal volume, airway pressure, and end-tidal gas
- 1 March 1985
- journal article
- Published by American Physiological Society in Journal of Applied Physiology
- Vol. 58 (3) , 1023-1025
- https://doi.org/10.1152/jappl.1985.58.3.1023
Abstract
We have designed a new endotracheal flowmeter to measure tidal volume, phasic and mean airway pressures, inspiratory time, and end-tidal PCO2 and PO2 in intubated infants. The flowmeter is light (11 g) and adds minimal dead space (1.0 ml) and resistance (2 cmH2O X 100 ml- X s) to the infant's airway. The volume signal (less than or equal to 10 ml) is linear to 7 Hz, and end-tidal gases can be measured at respiratory rates of 90 breaths/min. This flowmeter is particularly valuable for evaluation of rapid mechanical ventilation of very low birth weight infants.Keywords
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