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So Normal V/Q ratio is 4/5 or 0.8. ... When the V/Q is higher than 0.8, it means ventilation exceeds perfusion. ... When the V/Q is < 0.8, there is a VQ mismatch caused by poor ventilation.
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www.rnceus.com/abgs/abgvq.html
www.rnceus.com/abgs/abgvq.html
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i think a, because in the lower lobes of lungs ventilation is low in the normal standing or sitting position and perfusion is high and vice versa in upper lobes. even though respiratory center is depressed, because of decreased respiration at night, v/q ratio would be more uniform in the middle portion of lungs at night.
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www.prep4usmle.com/forum/thread/27994/
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We note the value of produced for a given 2-D model and then search for the angle that gives the same ratio, using the plane-parallel 1-D model PLA. Here and signify the Q and V -amplitudes, respectively.
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aa.springer.de/papers/8333002/2300721/sc3.htm
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Disturbance of this distribution can lead to V/Q mismatching (figure 7). For an area of low V/Q ratio the blood flowing through it will be incompletely oxygenated, leading to a reduction in the oxygen level in arterial blood (hypoxaemia).
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www.nda.ox.ac.uk/wfsa/html/u12/u1211_02.htm
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The most common respiratory failure ... Ideal gas exchange occurs with a V/Q ratio of 0.8 ... If V/Q decreases...
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www.uic.edu/depts/mcpt/curriculum/cpp/ppt/review/tsld02...
www.uic.edu/depts/mcpt/curriculum/cpp/ppt/review/tsld027.htm
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RATIONALE AND OBJECTIVES: The purpose of this study was to demonstrate the construction of voxelwise ventilation-perfusion (V/Q) ratio maps in a porcine model by nonrigidly aligning the respective ventilation and perfusion images using a multimodality registration algorithm. ... Hasegawa I; Uematsu H; ... MATERIALS AND METHODS:
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www.medscape.com/medline/abstract/14587627
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Q Ratio (Tobin's Q ratio) - Definition of Q Ratio (Tobin's Q ratio) on Investopedia - A ratio devised by James Tobin of Yale University, Nobel laureate in economics, who hypothesized that the combined market value of all the companies ... What Does Q Ratio (Tobin's Q ratio) Mean?; A ratio devised by James Tobin of...
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www.investopedia.com/terms/q/qratio.asp
www.investopedia.com/terms/q/qratio.asp
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We have demonstrated all-optical bistable switching operation of resonant-tunnelling devices with ultra-small high-Q Si photonic-crystal nanocavities. Due to their high Q/V ratio, the switching energy is extremely small in comparison with that of conventional devices using the same optical nonlinear mechanism. ... S. Mitsugi, A.
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www.opticsinfobase.org/abstract.cfm?URI=oe-13-7-2678
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We have demonstrated all-optical bistable switching operation of resonant-tunnelling devices with ultra-small high-Q Si photonic-crystal nanocavities. Due to their high Q/V ratio, the switching energy is extremely small in comparison with that of conventional devices using the same optical nonlinear mechanism. ... S. Mitsugi, A.
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www.opticsinfobase.org/oe/abstract.cfm?id=83310
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