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tidal volume

   Also found in: Medical, Legal, Financial, Acronyms, Encyclopedia, Wikipedia 0.01 sec.
tidal volume
n.
The volume of air inhaled and exhaled at each breath.

tidal volume
n
1. (Earth Sciences / Physical Geography) the volume of water associated with a rising tide
2. (Life Sciences & Allied Applications / Physiology) Physiol the amount of air passing into and out of the lungs during normal breathing

tidal volume
The volume of air inhaled and exhaled with each breath. Also called tidal air.


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This device allows for protective mechanical ventilation by the reduction of tidal volumes and decreased end expiratory pressures.
To understand the shortcomings of PSV, two things must be kept in mind: 1) The actual pressure that inflates the lung is the sum of the airway and pleural pressures (transpulmonary pressure, PTP); and 2) The PTP needed depends not only on tidal volume and flow, but also on the mechanics of the respiratory system.
The initial increase in ventilation is due first to an increase in tidal volume and then to an increase in respiratory rate.
 
 
 
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