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http://www.applied-cardiopulmonary-pathophysiology.com/fileadmin/downloads/acp-2012-supp_20120517/36_spiess.pdf
Critical oxygen delivery (DO 2crit) is a key physiologic parameter for organ and organ-ism survival. It defines physiologically the boundary of shock (1,2). The purpose of car-diopulmonary bypass is to support that phys-iologic variable (DO 2crit), keep the patient out of shock, while the heart and lungs are re-moved from the normal circulation during re-
https://www.ncbi.nlm.nih.gov/pubmed/3301969
The concept of a critical oxygen delivery. Schumacker PT, Cain SM. In healthy tissues, decreases in oxygen delivery (QO2 = cardiac output X arterial O2 content) do not lower oxygen consumption (VO2) because tissue O2 extraction increases proportionately. When delivery is reduced below a critical threshold, VO2 falls because tissue extraction...Author: P. T. Schumacker, S. M. Cain
https://med.emory.edu/departments/pediatrics/_documents/divisions/criticalcare/lectures/oxygen-delivery-devices1.ppt
Indications for oxygen use Low ambient O2 Hypoxemia Suspected hypoxemia Increased work-of-breathing Flaring Tachypnea Increased myocardial work Acute head injury O2 delivery systems High-flow Venti-masks (air entrainment masks) Mechanical aerosol systems High-flow humidifier systems Low-flow Nasal cannula Simple masks Partial rebreathing masks Non-rebreathing masks Entrainment ratios Delivered …
https://academic.oup.com/bjaed/article/4/4/123/308019
Aug 01, 2004 · An understanding of oxygen delivery is therefore central to the management of patients during anaesthesia, resuscitation and during critical illness. This review deals specifically with the transport of oxygen from the lungs to non-pulmonary tissues.Author: S. A. McLellan, T. S. Walsh
https://www.rch.org.au/rchcpg/hospital_clinical_guideline_index/Oxygen_delivery/
The goal of oxygen delivery is to maintain targeted SpO 2 levels in children through the provision of supplemental oxygen in a safe and effective way which is tolerated by infants and children to: Relieve hypoxaemia and maintain adequate oxygenation of tissues and vital organs, as assessed by SpO 2 /SaO 2 monitoring and clinical signs.
https://litfl.com/oxygen-saturation-targets-in-critical-care/
Apr 09, 2019 · Oxygen saturation targets in critical care. by Dr Chris Nickson, last update April 9, 2019. ... (SO2) is a better measurement of the systemic oxygen delivery to the tissues than oxygen tension (PO2) ... (eg. venous stab) point-of-care ABG analyzers typically calculate, rather than measure, SaO2 from the measured PO2 assuming a normal Hb-O2 ...
https://www.researchgate.net/publication/51366281_Experimental_analysis_of_critical_oxygen_delivery
The best variables to estimate critical delivery were lactate, bicarbonate, base excess, O(2) extraction ratio, expired CO(2), pulse pressure, cardiac index, and systolic pressure. The data suggest...
https://academic.oup.com/bjaed/article/16/10/341/2288629
May 17, 2016 · Oxygen delivery 5, 11, 14. Traditionally, in anaesthesia and critical care medicine, the product of cardiac output and oxygen content has been referred to as ‘oxygen delivery’, despite the fact that this is inherently incorrect.Author: J-Oc Dunn, MG Mythen, MP Grocott, MP Grocott
https://www.engineeringtoolbox.com/gas-critical-temperature-pressure-d_161.html
Critical point: The end point of the pressure-temperature curve that designates conditions under which a liquid and its vapor can coexist. At higher temperatures, the gas cannot be liquefied by pressure alone. At the critical point, defined by the critical temperature T c and the critical pressure p c, phase boundaries vanish.
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