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*  Spirometry
... forced expiratory flow 25-75% (FEF 25-75) and maximal voluntary ventilation (MVV), also known as Maximum breathing capacity. ... along the X-axis a flow-volume loop, which graphically depicts the rate of airflow on the Y-axis and the total volume inspired ... Ciprandi, Giorgio; Cirillo, Ignazio (1 February 2011). "Forced expiratory flow between 25% and 75% of vital capacity may be a ... Nunn AJ, Gregg I (April 1989). "New regression equations for predicting peak expiratory flow in adults". BMJ. 298 (6680): 1068- ...
*  Brittle asthma
... or peak expiratory flow rate (PEFR). Type 1 is characterized by sustained, chronic variability of PEFR, while type 2 is ... of asthma cases that do not respond to maximal inhaled treatment, including high doses of corticosteroids combined with ... "persistent daily chaotic variability in peak flow (usually greater than 40 per cent diurnal variation in PEFR more than 50 per ...
*  List of MeSH codes (E01)
... forced expiratory flow rates MeSH E01.370.386.700.660.225.500 --- maximal expiratory flow rate MeSH E01.370.386.700.660.225.505 ... maximal expiratory flow-volume curves MeSH E01.370.386.700.660.225.510 --- maximal midexpiratory flow rate MeSH E01.370.386.700 ... peak expiratory flow rate MeSH E01.370.386.700.660.230 --- forced expiratory volume MeSH E01.370.386.700.660.500 --- maximal ... expiratory reserve volume MeSH E01.370.386.700.485.750.275.650 --- residual volume MeSH E01.370.386.700.485.750.900 --- vital ...
*  List of MeSH codes (G09)
... forced expiratory flow rates MeSH G09.772.765.650.300.590 --- maximal expiratory flow rate MeSH G09.772.765.650.300.630 --- ... maximal midexpiratory flow rate MeSH G09.772.765.650.300.790 --- peak expiratory flow rate MeSH G09.772.765.650.430 --- forced ... maximal expiratory flow-volume curves MeSH G09.772.765.650.300.670 --- ... heart rate MeSH G09.330.553.400.509.430 --- heart rate, fetal MeSH G09.330.553.400.515 --- heart sounds MeSH G09.330.553.400. ...
*  Peak expiratory flow
The peak expiratory flow (PEF), also called peak expiratory flow rate (PEFR) is a person's maximum speed of expiration, as ... Knudson, RJ (1983). "Changes in the normal maximal expiratory flow-volume curve with growth and aging". Am Rev Respir Dis. 127 ... "How can I determine a normal peak flow rate for me?". WRIGHT BM, McKERROW CB (November 1959). "Maximum forced expiratory flow ... The highest of three readings is used as the recorded value of the Peak Expiratory Flow Rate. It may be plotted out on graph ...
*  Pulmonary function testing
Maximal expiratory pressure (MEP) is the maximal pressure measured during forced expiration (with cheeks bulging) through a ... Spirometry includes tests of pulmonary mechanics - measurements of FVC, FEV1, FEF values, forced inspiratory flow rates (FIFs ... Maximal inspiratory pressure (MIP) is the maximal pressure that can be produced by the patient trying to inhale through a ... Measurement of maximal inspiratory and expiratory pressures is indicated whenever there is an unexplained decrease in vital ...
*  MEF
Maximal expiratory flow, synonymous with forced expiratory flow, in spirometry Medial eye fields Metro Ethernet Forum ... Modernized e-File (MeF), an electronic system for filing U.S. income taxes Modified Energy Factor (Energy Star Rating Value, US ...
*  High-frequency ventilation
The bias flow controls and indicates the rate of continuous flow of humidified blended gas through the patient circuit. The ... The optimal PAW can be considered as a compromise between maximal lung recruitment and minimal overdistention. The mean ... which in effect is the same as positive end-expiratory pressure (PEEP). Thus gas is pushed into the lung during inspiration, ... As the bar or ball rotates and the opening lines-up with the gas flow, a small, brief pulse of gas is allowed to enter the ...
*  Valsalva maneuver
... but the cardiac output and blood flow to the body remains low. During this time the pulse rate increases (compensatory ... Initial pressure rise On application of expiratory force, pressure rises inside the chest forcing blood out of the pulmonary ... The Valsalva maneuver is commonly believed to be the optimal breathing pattern for producing maximal force and is frequently ... Stroke volume and blood pressure falls, while the heart rate increases. The Valsalva maneuver is used to aid in the clinical ...
*  Respirometry
Flow meter and flow controllers Bubble flow meters: A simple, yet highly accurate way to measure flow rates involves timing ... Two measures are typically obtained: standard (SMR) or basal metabolic rate (BMR) and maximal rate (VO2max). SMR is measured ... inlet port inside the jar should be provided-this ensures that the animal's expiratory gases are not washed away by the in flow ... Under some circumstances of high flow rates we may use simple acrylic flow meters (0-2.5 liters/min) to control the flow rates ...
*  Common ostrich
... the increase of the glomerular filtration rate (GFR) and urine flow rate (UFR) is due to a high protein diets. As seen in ... During expiration, oxygen poor air flows to the anterior air sacs and is expelled by the action of the expiratory muscles. The ... When the plasma osmolality has been measured simultaneously with the maximal osmotic urine, it is seen that the urine:plasma ... Along with dehydration, there is also a reduction in flow rate from 20 L·d−1 to only 0.3-0.5 L·d−1. In mammals and common ...
*  Liquid breathing
Koen P. A.; Wolfson M. R.; Shaffer T. H. (1988). "Fluorocarbon ventilation: maximal expiratory flows and CO2 elimination". ... which is already at the limits of realistic flow rates in liquid breathing. It seems unlikely that a person would move 10 ... The technology came to be called gas/liquid ventilation (GLV), and was shown able to achieve a cooling rate of 0.5 °C per ... Any increase in the diver's metabolic activity also increases CO2 production and the breathing rate, ...
*  Prostacyclin receptor
In typical binding studies, PGI2 has one-half of its maximal binding capacity and cell-stimulating actions at ~1 nanomolar ... It increases the blood flow through, for example, the pulmonary, coronary, retinal and choroid circulation. Inhaled PGI2 causes ... mosue model to cause an accelerated rate of developing atherosclerosis. Mouse studies indicate that the PGI2-IP axis activates ... gene is associated with an increased incidence of Aspirin-induced asthma and a greater percentage fall in the forced expiratory ...
*  Drowning
... a slowing of the heart rate by up to 50% in humans. Peripheral vasoconstriction, the restriction of the blood flow to the ... Positive end-expiratory pressure will generally improve oxygenation. Drug administration via peripheral veins is preferred over ... Lindholm, P; Lundgren, C. E. (2006). "Alveolar gas composition before and after maximal breath-holds in competitive divers". ... The fatal drowning rate of African American children of ages from 5 to 14 is almost three times that of white children in the ...
*  Freediving blackout
Positive end-expiratory pressure will generally improve oxygenation. Underwater diving portal Free-diving, for more on the ... The diver should breathe normally in preparation for a dive, and allow the normal breathing triggers to dictate the rate of ... Ischaemic hypoxia is caused by reduced blood flow to the brain arising from cerebral vasoconstriction brought on by low carbon ... Lindholm P, Lundgren CE (2006). "Alveolar gas composition before and after maximal breath-holds in competitive divers". ...