Peak inspiratory pressure (P
IP) is the highest level of pressure applied to the
lung
The lungs are the primary Organ (biology), organs of the respiratory system in many animals, including humans. In mammals and most other tetrapods, two lungs are located near the Vertebral column, backbone on either side of the heart. Their ...
s during
inhalation
Inhalation (or inspiration) happens when air or other gases enter the lungs.
Inhalation of air
Inhalation of air, as part of the cycle of breathing, is a vital process for all human life. The process is autonomic (though there are exceptions ...
.
In
mechanical ventilation
Mechanical ventilation or assisted ventilation is the Medicine, medical term for using a ventilator, ventilator machine to fully or partially provide artificial ventilation. Mechanical ventilation helps move air into and out of the lungs, wit ...
the number reflects a positive pressure in centimeters of water pressure (cm H
2O). In normal breathing, it may sometimes be referred to as the
maximal inspiratory pressure (M
IPO), which is a negative value.
Peak inspiratory pressure increases with any airway resistance. Factors that may increase P
IP include increased secretions, bronchospasm, biting down on ventilation tubing, and decreased lung compliance. P
IP should never be chronically higher than 40 cm H
2O unless the patient has acute respiratory distress syndrome.
See also
*
Static compliance
Lung compliance, or pulmonary compliance, is a measure of the lung's compliance (physiology), ability to stretch and expand (distensibility of elastic tissue). In clinical practice it is separated into two different measurements, static compliance ...
*
Dynamic compliance
Lung compliance, or pulmonary compliance, is a measure of the lung's ability to stretch and expand (distensibility of elastic tissue). In clinical practice it is separated into two different measurements, static compliance and dynamic compliance. ...
References
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Pulmonology
Respiratory therapy
Mechanical ventilation