WordNet

characterized by painstaking care and detailed examination; "a minute inspection of the grounds"; "a narrow scrutiny"; "an exact and minute report" (同)narrow
a unit of angular distance equal to a 60th of a degree (同)arcminute, minute of arc
a unit of time equal to 60 seconds or 1/60th of an hour; "he ran a 4 minute mile" (同)min
a short note; "the secretary keeps the minutes of the meeting"
a relative amount; "mix one volume of the solution with ten volumes of water"
the amount of 3-dimensional space occupied by an object; "the gas expanded to twice its original volume"
the magnitude of sound (usually in a specified direction); "the kids played their music at full volume" (同)loudness, intensity
a publication that is one of a set of several similar publications; "the third volume was missing"; "he asked for the 1989 volume of the Annual Review"
furnished with volumes; "a large room volumed with ancient books"
(often used in combination) consisting of or having a given number or kind of volumes; "the poets volumed works"; "a two-volumed history"; "multi-volumed encyclopedias"; "large-volumed editions"
formed or rising in rounded masses; "gasping with the volumed smoke"
a written account of what transpired at a meeting (同)proceedings, transactions

PrepTutorEJDIC

(時間の単位の)『分』(1/60時間;《略》『m.,min.』) / (角度の単位の)分(1/60度;記号は'で,数字の後に付ける) / 〈U〉《しばしばa ~》《話》『瞬間』,ちょっとの間(moment) / (また『minute book』)《複数形で》(会議の)景事録
『ごく小さい』,微細な / 『精密な』,詳しい / ささいな,取るに足りない
〈C〉(特に分厚い)『本』,書物 / 〈C〉(シリーズものの)『巻』,冊(《略》(単数形で)vol.,(複数形で)vols.) / 〈U〉(…の)『体積』,容積《+of+名》 / 〈U〉〈C〉)…の)『量』,かさ《+of+名》 / 〈U〉(…の)『音量』,音の強さ,ボリューム《+of+名》 / 《複数形で》多量(の…),たくさん(の…)《+of+名》

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/09/16 09:30:30」(JST)

wiki en

[Wiki en表示]

Respiratory minute volume (or minute ventilation or expired minute volume) is the volume of gas inhaled (inhaled minute volume) or exhaled (exhaled minute volume) from a person's lungs per minute. It is an important parameter in respiratory medicine due to its relationship with blood carbon dioxide levels. It can be measured with devices such as a Wright respirometer, or can be calculated from other known respiratory parameters. Note that although its name implies that it is a volume, minute volume is actually a flow (it represents a volume change over time).

Several symbols can be used to represent minute volume. They include: , MV, and V_E.

Determination of minute volume[edit source | edit]

Minute volume can either be measured directly or calculated from other known parameters.

Measurement of minute volume[edit source | edit]

Minute volume is the amount of gas inhaled or exhaled from a person's lungs in one minute. It can be measured by a Wright respirometer or other device capable of cumulatively measuring gas flow, such as mechanical ventilators.

Calculation of minute volume[edit source | edit]

If both tidal volume (V_T) and respiratory rate (ƒ or RR) are known, minute volume can be calculated by multiplying the two values. One must also take care to consider the effect of dead space on alveolar ventilation, as seen below in "Relationship to other physiological rates".

Physiological significance of minute volume[edit source | edit]

Blood carbon dioxide (PaCO₂) levels generally vary inversely with minute volume.^{[citation needed]} For example, a person with increased minute volume (e.g. due to hyperventilation) should demonstrate a lower blood carbon dioxide level. The healthy human body will alter minute volume in an attempt to maintain physiologic homeostasis. A normal minute volume while resting is about 5–8 liters per minute in humans.^{[citation needed]} Minute volume generally decreases when at rest, and increases with exercise. For example, during light activities minute volume may be around 12 litres. Driving a bicycle increases minute ventilation by a factor of 2 to 4 depending on the level of exercise involved. Minute ventilation during moderate exercise may be between 40 and 60 litres per minute.^[1] ^[2]

Hyperventilation is the term for having a minute ventilation higher than physiologically appropriate. Hypoventilation describes a minute volume less than physiologically appropriate.

Relationship to other physiological rates[edit source | edit]

Minute volume comprises the sum of alveolar ventilation and dead space ventilation. That is:

where is alveolar ventilation, and represents dead space ventilation.

References[edit source | edit]

^ Zuurbier, M., Hoek, G., van den Hazel, P., Brunekreef, B. (2009). "Minute ventilation of cyclists, car and bus passengers: an experimental study.". Environmental Health 8 (48).
^ Int Panis, L (2010). "Exposure to particulate matter in traffic: A comparison of cyclists and car passengers". Atmospheric Environment 44: 2263–2270. doi:10.1016/j.atmosenv.2010.04.028.

External links[edit source | edit]

Overview at healthsystem.virginia.edu
Overview at ccmtutorials.com
Physiology at MCG 4/4ch3/s4ch3_15
What is minute ventilation

UpToDate Contents

全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.

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English Journal

Poorer physical fitness is associated with reduced structural brain integrity in heart failure.

Alosco ML, Brickman AM, Spitznagel MB, Griffith EY, Narkhede A, Raz N, Cohen R, Sweet LH, Colbert LH, Josephson R, Hughes J, Rosneck J, Gunstad J.SourceDepartment of Psychology, Kent State University, Kent, OH, USA. Electronic address: Malosco@kent.edu.
Journal of the neurological sciences.J Neurol Sci.2013 May 15;328(1-2):51-7. doi: 10.1016/j.jns.2013.02.015. Epub 2013 Mar 23.
OBJECTIVE: Physical fitness is an important correlate of structural and functional integrity of the brain in healthy adults. In heart failure (HF) patients, poor physical fitness may contribute to cognitive dysfunction and we examined the unique contribution of physical fitness to brain structural i
PMID 23528350

Effect of ticagrelor on pulmonary function in healthy elderly volunteers and asthma or chronic obstructive pulmonary disease patients.

Butler K, Maya J, Teng R.SourceAstraZeneca LP , Wilmington, DE , USA.
Current medical research and opinion.Curr Med Res Opin.2013 May;29(5):569-77. doi: 10.1185/03007995.2013.781502. Epub 2013 Apr 2.
Abstract Background: Ticagrelor is a direct-acting, reversibly binding, oral P2Y12 platelet inhibitor that reduces thrombotic cardiovascular events in patients with acute coronary syndrome. Dyspnea is one of the most commonly reported adverse events associated with ticagrelor. Objective: To determin
PMID 23448616

Japanese Journal

Cardiac hemodynamic response to the 6-minute walk test in young adults and the elderly

BMC Research Notes 8(1), 1331, 2015-12-01
NAID 120005661911

Hyperinflation deteriorates arterial oxygenation and lung injury in a rabbit model of ARDS with repeated open endotracheal suctioning

BMC anesthesiology 15, 73, 2015-05
NAID 120005613920

簡易呼気陽圧発生装置が自発呼吸に及ぼす影響 : 呼吸力学パラメータによる分析

岩手医科大学歯学雑誌 39(3), 98-105, 2015-01-30
NAID 110009892382

Related Pictures

★リンクテーブル★

リンク元	「MV」「毎分換気量」「毎分呼吸量」
拡張検索	「minute volume of ventilation」「respiratory minute volume」
関連記事	「minute」「volume」

「MV」

TLC	Total lung capacity: the volume in the lungs at maximal inflation, the sum of VC and RV.
TV	Tidal volume: that volume of air moved into or out of the lungs during quiet breathing (VT indicates a subdivision of the lung; when tidal volume is precisely measured, as in gas exchange calculation, the symbol VT or VT is used.)
RV	Residual volume: the volume of air remaining in the lungs after a maximal exhalation
ERV	Expiratory reserve volume: the maximal volume of air that can be exhaled from the end-expiratory position
IRV	Inspiratory reserve volume: the maximal volume that can be inhaled from the end-inspiratory level
IC	Inspiratory capacity: the sum of IRV and TV
IVC	Inspiratory vital capacity: the maximum volume of air inhaled from the point of maximum expiration
VC	Vital capacity: the volume of air breathed out after the deepest inhalation.
VT	Tidal volume: that volume of air moved into or out of the lungs during quiet breathing (VT indicates a subdivision of the lung; when tidal volume is precisely measured, as in gas exchange calculation, the symbol VT or VT is used.)
FRC	Functional residual capacity: the volume in the lungs at the end-expiratory position
RV/TLC%	Residual volume expressed as percent of TLC
VA	Alveolar gas volume
VL	Actual volume of the lung including the volume of the conducting airway.
FVC	Forced vital capacity: the determination of the vital capacity from a maximally forced expiratory effort
FEVt	Forced expiratory volume (time): a generic term indicating the volume of air exhaled under forced conditions in the first t seconds
FEV1	Volume that has been exhaled at the end of the first second of forced expiration
FEFx	Forced expiratory flow related to some portion of the FVC curve; modifiers refer to amount of FVC already exhaled
FEFmax	The maximum instantaneous flow achieved during a FVC maneuver
FIF	Forced inspiratory flow: (Specific measurement of the forced inspiratory curve is denoted by nomenclature analogous to that for the forced expiratory curve. For example, maximum inspiratory flow is denoted FIFmax. Unless otherwise specified, volume qualifiers indicate the volume inspired from RV at the point of measurement.)
PEF	Peak expiratory flow: The highest forced expiratory flow measured with a peak flow meter
MVV	Maximal voluntary ventilation: volume of air expired in a specified period during repetitive maximal effort
	v; t; e;