Mindblown: a blog about philosophy.
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Pressure of speech
Loud and emphatic speech that is increased in amount, accelerated, and usually difficult or impossible to interrupt. The speech is not in response to a stimulus and may continue even though no one is listening. It may be present in manic episodes, organic brain disease, depression with agitation, psychotic disorders, and sometimes as an acute…
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Equal pressure point
During forced exhalation, the point at an airway where the pressure inside the wall equals the intrapleural pressure. The pleural pressure is greater than the pressure inside the airway, tending to cause bronchiolar collapse.
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Pressure pain threshold
The applied mass per area (kg/cm2) that will elicit a complaint of pain in subjects with painful conditions, e.g., fibromyalgia, temperomandibular joint dysfunction, or vulvodynia.
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Transpulmonary pressure
Alveolar pressure minus pleural pressure. When normal transpulmonary pressures are exceeded, air leaks may develop.
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Static pressure
The pressure in the circulatory system between pulses.
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Solution pressure
Pressure that tends to dissolve a solid present in a solution. The inclination of molecules to depart from the surface of a solute and enter the solvent.
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Posterior cricoid pressure
Pressure applied by firmly placing the thumb and index finger on the lateral aspects of a patient’s cricoid ring to occlude the esophagus.
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Auto positive end-expiratory pressure
A complication of mechanical ventilation in which the ventilator does not permit the patient sufficient time to exhale. This causes air to be trapped in the lungs, particularly the alveoli. If continued, auto-PEEP causes respiratory muscle fatigue and can cause rupture of the lung (i.e., pneumothorax). Auto-PEEP may be corrected by increasing exhalation time, decreasing…
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Positive pressure
Pressure greater than atmospheric or greater than the pressure to which the initial pressure is being compared.
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Pleural pressure
The pressure in the pleural space, e.g., during mechanical ventilation or critical illness. It is normally lower than atmospheric pressure and therefore is sometimes called a negative pressure. It is rarely measured, except during mechanical ventilation, thoracentesis, or critical illness.
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